fix(settings): fire MCP Server page-viewed event reliably on mount

Previously gated the PAGE_VIEWED analytics event on
isGlobalConfigFetched to avoid a double-fire when the async
ingestion_url resolved. Side effect: if /global/config was slow or
errored out, the event never fired. Fire once on mount instead with
hostname-derived region metadata, which is synchronous and reliable.

frontend/public/locales/en-GB/mcpServer.json

@@ -0,0 +1,52 @@
+{
+	"page_title": "SigNoz MCP Server",
+	"page_subtitle": "Connect AI assistants like Claude, Cursor, VS Code, and Codex to your SigNoz data via the Model Context Protocol. Authenticate from your MCP client with a service-account API key.",
+
+	"fallback_title": "MCP Server is available on SigNoz Cloud",
+	"fallback_body": "This in-product setup guide is for SigNoz Cloud. Self-hosted users can follow the docs to run the MCP server against their instance.",
+	"fallback_docs_link": "View MCP Server docs",
+
+	"region_warning_prefix": "We couldn't detect your Cloud region from this URL. Find it at ",
+	"region_warning_link": "Settings → Ingestion",
+	"region_warning_suffix": " (the label between your workspace name and signoz.cloud in the ingestion URL), then enter it here.",
+	"region_input_label": "SigNoz Cloud region",
+	"region_input_placeholder": "Your SigNoz Cloud region",
+
+	"step1_title": "Configure your client",
+	"step1_description": "Add SigNoz to your MCP client. Use a one-click install where available, or copy the config for manual setup. On first connect, the client will open a SigNoz authorization page — use the instance URL and API key from step 2.",
+	"step1_manual_fallback": "Or copy the config below for manual setup.",
+	"step1_client_docs_suffix": " setup docs",
+	"step1_add_to_client_prefix": "Add to ",
+
+	"client_cursor_install_label": "Add to Cursor",
+	"client_vscode_install_label": "Add to VS Code",
+	"client_claude_desktop_instructions": "Open Claude Desktop, go to Settings → Connectors → Add custom connector, and paste the endpoint URL above. Claude Desktop does not read remote MCP servers from claude_desktop_config.json — the connector UI is the only supported path.",
+	"client_other_instructions": "Most MCP clients that support remote HTTP servers will accept the endpoint URL above. Add it as a new MCP server in your client and paste your SigNoz API key when the client prompts for authentication. See the docs for client-specific instructions.",
+
+	"step2_title": "Authenticate from your client",
+	"step2_description": "On first connect, your client opens a SigNoz authorization page asking for two values:",
+	"step2_instance_url_label": "SigNoz Instance URL",
+	"step2_api_key_label": "API Key",
+	"step2_admin_cta": "Create service account",
+	"step2_admin_helper": "Create a service account, then add a new key inside it — paste that key into the API Key field.",
+	"step2_viewer_helper": "Only admins can create API keys. Ask your workspace admin for a key with read access, then paste it into the API Key field.",
+
+	"use_cases_title": "What you can do with it",
+	"use_cases_item_1": "Ask your AI assistant to investigate a spiking error rate.",
+	"use_cases_item_2": "Debug a slow service by walking through recent traces.",
+	"use_cases_item_3": "Summarize an alert and suggest likely root causes.",
+	"use_cases_item_4": "Generate dashboards or queries from a natural-language description.",
+	"use_cases_docs_link": "See more use cases",
+
+	"copy_tooltip_enabled": "Copy to clipboard",
+	"copy_tooltip_disabled": "Enter your Cloud region first",
+	"copy_aria_endpoint": "Copy MCP endpoint",
+	"copy_aria_instance_url": "Copy SigNoz instance URL",
+	"copy_aria_snippet_prefix": "Copy ",
+	"copy_aria_snippet_suffix": " config",
+
+	"toast_endpoint_copied": "Endpoint copied to clipboard",
+	"toast_snippet_copied": "Snippet copied to clipboard",
+	"toast_instance_url_copied": "Instance URL copied to clipboard",
+	"toast_region_required": "Enter your Cloud region before copying"
+}

frontend/public/locales/en-GB/routes.json

@@ -16,5 +16,6 @@
 	"roles": "Roles",
 	"role_details": "Role Details",
 	"members": "Members",
-	"service_accounts": "Service Accounts"
+	"service_accounts": "Service Accounts",
+	"mcp_server": "MCP Server"
 }

frontend/public/locales/en-GB/titles.json

@@ -53,5 +53,6 @@
 	"METER": "SigNoz | Meter",
 	"ROLES_SETTINGS": "SigNoz | Roles",
 	"MEMBERS_SETTINGS": "SigNoz | Members",
-	"SERVICE_ACCOUNTS_SETTINGS": "SigNoz | Service Accounts"
+	"SERVICE_ACCOUNTS_SETTINGS": "SigNoz | Service Accounts",
+	"MCP_SERVER": "SigNoz | MCP Server"
 }

frontend/public/locales/en/mcpServer.json

@@ -0,0 +1,52 @@
+{
+	"page_title": "SigNoz MCP Server",
+	"page_subtitle": "Connect AI assistants like Claude, Cursor, VS Code, and Codex to your SigNoz data via the Model Context Protocol. Authenticate from your MCP client with a service-account API key.",
+
+	"fallback_title": "MCP Server is available on SigNoz Cloud",
+	"fallback_body": "This in-product setup guide is for SigNoz Cloud. Self-hosted users can follow the docs to run the MCP server against their instance.",
+	"fallback_docs_link": "View MCP Server docs",
+
+	"region_warning_prefix": "We couldn't detect your Cloud region from this URL. Find it at ",
+	"region_warning_link": "Settings → Ingestion",
+	"region_warning_suffix": " (the label between your workspace name and signoz.cloud in the ingestion URL), then enter it here.",
+	"region_input_label": "SigNoz Cloud region",
+	"region_input_placeholder": "Your SigNoz Cloud region",
+
+	"step1_title": "Configure your client",
+	"step1_description": "Add SigNoz to your MCP client. Use a one-click install where available, or copy the config for manual setup. On first connect, the client will open a SigNoz authorization page — use the instance URL and API key from step 2.",
+	"step1_manual_fallback": "Or copy the config below for manual setup.",
+	"step1_client_docs_suffix": " setup docs",
+	"step1_add_to_client_prefix": "Add to ",
+
+	"client_cursor_install_label": "Add to Cursor",
+	"client_vscode_install_label": "Add to VS Code",
+	"client_claude_desktop_instructions": "Open Claude Desktop, go to Settings → Connectors → Add custom connector, and paste the endpoint URL above. Claude Desktop does not read remote MCP servers from claude_desktop_config.json — the connector UI is the only supported path.",
+	"client_other_instructions": "Most MCP clients that support remote HTTP servers will accept the endpoint URL above. Add it as a new MCP server in your client and paste your SigNoz API key when the client prompts for authentication. See the docs for client-specific instructions.",
+
+	"step2_title": "Authenticate from your client",
+	"step2_description": "On first connect, your client opens a SigNoz authorization page asking for two values:",
+	"step2_instance_url_label": "SigNoz Instance URL",
+	"step2_api_key_label": "API Key",
+	"step2_admin_cta": "Create service account",
+	"step2_admin_helper": "Create a service account, then add a new key inside it — paste that key into the API Key field.",
+	"step2_viewer_helper": "Only admins can create API keys. Ask your workspace admin for a key with read access, then paste it into the API Key field.",
+
+	"use_cases_title": "What you can do with it",
+	"use_cases_item_1": "Ask your AI assistant to investigate a spiking error rate.",
+	"use_cases_item_2": "Debug a slow service by walking through recent traces.",
+	"use_cases_item_3": "Summarize an alert and suggest likely root causes.",
+	"use_cases_item_4": "Generate dashboards or queries from a natural-language description.",
+	"use_cases_docs_link": "See more use cases",
+
+	"copy_tooltip_enabled": "Copy to clipboard",
+	"copy_tooltip_disabled": "Enter your Cloud region first",
+	"copy_aria_endpoint": "Copy MCP endpoint",
+	"copy_aria_instance_url": "Copy SigNoz instance URL",
+	"copy_aria_snippet_prefix": "Copy ",
+	"copy_aria_snippet_suffix": " config",
+
+	"toast_endpoint_copied": "Endpoint copied to clipboard",
+	"toast_snippet_copied": "Snippet copied to clipboard",
+	"toast_instance_url_copied": "Instance URL copied to clipboard",
+	"toast_region_required": "Enter your Cloud region before copying"
+}

frontend/public/locales/en/routes.json

@@ -16,5 +16,6 @@
 	"roles": "Roles",
 	"role_details": "Role Details",
 	"members": "Members",
-	"service_accounts": "Service Accounts"
+	"service_accounts": "Service Accounts",
+	"mcp_server": "MCP Server"
 }

frontend/public/locales/en/titles.json

@@ -76,5 +76,6 @@
 	"METER": "SigNoz | Meter",
 	"ROLES_SETTINGS": "SigNoz | Roles",
 	"MEMBERS_SETTINGS": "SigNoz | Members",
-	"SERVICE_ACCOUNTS_SETTINGS": "SigNoz | Service Accounts"
+	"SERVICE_ACCOUNTS_SETTINGS": "SigNoz | Service Accounts",
+	"MCP_SERVER": "SigNoz | MCP Server"
 }

frontend/src/constants/routes.ts

@@ -87,6 +87,7 @@ const ROUTES = {
 	HOME_PAGE: '/',
 	PUBLIC_DASHBOARD: '/public/dashboard/:dashboardId',
 	SERVICE_ACCOUNTS_SETTINGS: '/settings/service-accounts',
+	MCP_SERVER: '/settings/mcp-server',
 } as const;
 
 export default ROUTES;

frontend/src/container/MCPServerSettings/MCPServerSettings.styles.scss

@@ -0,0 +1,246 @@
+.mcp-settings {
+	display: flex;
+	flex-direction: column;
+	gap: 1.5rem;
+	padding: 1.5rem;
+	max-width: 55rem;
+
+	&__header {
+		display: flex;
+		flex-direction: column;
+		gap: 0.5rem;
+
+		&-title {
+			display: flex;
+			align-items: center;
+			gap: 0.5rem;
+			font-size: 1.125rem;
+			font-weight: 600;
+			color: var(--l0-foreground);
+		}
+
+		&-subtitle {
+			font-size: 0.8125rem;
+			font-weight: 400;
+			color: var(--l2-foreground);
+			line-height: 1.25rem;
+		}
+	}
+
+	&__card {
+		display: flex;
+		flex-direction: column;
+		gap: 1rem;
+		padding: 1.25rem;
+		border: 0.0625rem solid var(--l3-background);
+		border-radius: 0.5rem;
+		background: var(--l1-background);
+	}
+
+	&__card-title {
+		display: flex;
+		align-items: center;
+		gap: 0.5rem;
+		font-size: 0.875rem;
+		font-weight: 600;
+		color: var(--l0-foreground);
+	}
+
+	&__step-badge {
+		display: inline-flex;
+		align-items: center;
+		justify-content: center;
+		width: 1.375rem;
+		height: 1.375rem;
+		border-radius: 50%;
+		background: var(--bg-robin-400);
+		color: var(--l0-background);
+		font-size: 0.75rem;
+		font-weight: 600;
+		flex-shrink: 0;
+	}
+
+	&__card-description {
+		font-size: 0.8125rem;
+		color: var(--l2-foreground);
+		line-height: 1.25rem;
+	}
+
+	&__endpoint-row {
+		display: flex;
+		align-items: center;
+		gap: 0.75rem;
+		flex-wrap: wrap;
+	}
+
+	&__endpoint-field {
+		flex: 1;
+		min-width: 20rem;
+	}
+
+	&__endpoint-value {
+		display: inline-flex;
+		align-items: center;
+		gap: 0.5rem;
+		padding: 0.5rem 0.75rem;
+		border: 0.0625rem solid var(--l3-background);
+		border-radius: 0.375rem;
+		background: var(--l2-background);
+		font-family: var(--font-family-monospace, monospace);
+		font-size: 0.8125rem;
+		color: var(--l0-foreground);
+		width: 100%;
+		justify-content: space-between;
+	}
+
+	&__copy-btn {
+		cursor: pointer;
+		color: var(--l2-foreground);
+
+		&:hover {
+			color: var(--bg-robin-400);
+		}
+	}
+
+	&__region-warning {
+		display: flex;
+		align-items: flex-start;
+		gap: 0.5rem;
+		padding: 0.75rem;
+		border: 0.0625rem solid var(--bg-amber-500);
+		border-radius: 0.375rem;
+		background: var(--bg-amber-500-a10, rgba(255, 193, 7, 0.08));
+		font-size: 0.75rem;
+		color: var(--l2-foreground);
+		line-height: 1.125rem;
+
+		svg {
+			flex-shrink: 0;
+			color: var(--bg-amber-500);
+			margin-top: 0.125rem;
+		}
+	}
+
+	&__region-card,
+	&__cta-card {
+		padding: 1rem 1.25rem;
+		gap: 0.75rem;
+	}
+
+	&__auth-field {
+		display: flex;
+		flex-direction: column;
+		gap: 0.375rem;
+	}
+
+	&__auth-field-label {
+		font-size: 0.75rem;
+		font-weight: 500;
+		color: var(--l2-foreground);
+		letter-spacing: 0.01em;
+	}
+
+	&__info-banner-inline {
+		display: flex;
+		align-items: flex-start;
+		gap: 0.5rem;
+		padding: 0.625rem 0.75rem;
+		border-left: 0.1875rem solid var(--bg-robin-400);
+		background: var(--l2-background);
+		border-radius: 0.25rem;
+
+		svg {
+			flex-shrink: 0;
+			color: var(--bg-robin-400);
+			margin-top: 0.125rem;
+		}
+	}
+
+	&__endpoint-input {
+		margin-top: 0.5rem;
+		font-family: var(--font-family-monospace, monospace);
+	}
+
+	&__cta-row {
+		display: flex;
+		align-items: center;
+		gap: 0.75rem;
+		flex-wrap: wrap;
+	}
+
+	&__helper-text {
+		font-size: 0.75rem;
+		color: var(--l2-foreground);
+		line-height: 1.125rem;
+	}
+
+	&__tabs-container {
+		.ant-tabs-nav {
+			margin-bottom: 0.75rem;
+		}
+	}
+
+	&__snippet-wrapper {
+		display: flex;
+		flex-direction: column;
+		gap: 0.5rem;
+	}
+
+	&__install-row {
+		display: flex;
+		align-items: center;
+		gap: 0.75rem;
+		flex-wrap: wrap;
+		margin-bottom: 0.25rem;
+	}
+
+	&__snippet-pre {
+		margin: 0;
+		white-space: pre-wrap;
+		word-break: break-all;
+	}
+
+	&__use-cases {
+		display: flex;
+		flex-direction: column;
+		gap: 0.75rem;
+
+		&-list {
+			display: flex;
+			flex-direction: column;
+			gap: 0.375rem;
+
+			li {
+				font-size: 0.8125rem;
+				color: var(--l1-foreground);
+				line-height: 1.25rem;
+			}
+		}
+	}
+
+	&__fallback {
+		display: flex;
+		flex-direction: column;
+		gap: 0.75rem;
+		padding: 1.5rem;
+		border: 0.0625rem dashed var(--l3-background);
+		border-radius: 0.5rem;
+		background: var(--l1-background);
+		max-width: 40rem;
+
+		&-title {
+			display: flex;
+			align-items: center;
+			gap: 0.5rem;
+			font-size: 0.9375rem;
+			font-weight: 600;
+			color: var(--l0-foreground);
+		}
+
+		&-body {
+			font-size: 0.8125rem;
+			color: var(--l2-foreground);
+			line-height: 1.25rem;
+		}
+	}
+}

frontend/src/container/MCPServerSettings/MCPServerSettings.tsx

@@ -0,0 +1,536 @@
+import { useCallback, useEffect, useMemo, useState } from 'react';
+import { TFunction, useTranslation } from 'react-i18next';
+import { useCopyToClipboard } from 'react-use';
+import { Button, Input, Tabs, Tooltip, Typography } from 'antd';
+import logEvent from 'api/common/logEvent';
+import LearnMore from 'components/LearnMore/LearnMore';
+import ROUTES from 'constants/routes';
+import { SA_QUERY_PARAMS } from 'container/ServiceAccountsSettings/constants';
+import { useGetGlobalConfig } from 'hooks/globalConfig/useGetGlobalConfig';
+import { useGetTenantLicense } from 'hooks/useGetTenantLicense';
+import { useNotifications } from 'hooks/useNotifications';
+import history from 'lib/history';
+import {
+	Copy,
+	Download,
+	Info,
+	KeyRound,
+	Sparkles,
+	TriangleAlert,
+} from 'lucide-react';
+import { useAppContext } from 'providers/App/App';
+import { USER_ROLES } from 'types/roles';
+
+import {
+	docsUrl,
+	MCP_CLIENTS,
+	MCP_DOCS_URL,
+	MCP_USE_CASES_URL,
+	McpClient,
+} from './clients';
+import {
+	buildMcpEndpoint,
+	getCloudRegion,
+	normalizeRegion,
+	parseRegionFromUrl,
+} from './getCloudRegion';
+
+import './MCPServerSettings.styles.scss';
+
+const ANALYTICS = {
+	PAGE_VIEWED: 'MCP Settings: Page viewed',
+	CREATE_SA_CLICKED: 'MCP Settings: Create service account clicked',
+	CLIENT_TAB_SELECTED: 'MCP Settings: Client tab selected',
+	SNIPPET_COPIED: 'MCP Settings: Client snippet copied',
+	ONE_CLICK_INSTALL_CLICKED: 'MCP Settings: One-click install clicked',
+	INSTANCE_URL_COPIED: 'MCP Settings: Instance URL copied',
+	DOCS_LINK_CLICKED: 'MCP Settings: Docs link clicked',
+} as const;
+
+const ENDPOINT_PLACEHOLDER = 'https://mcp.<region>.signoz.cloud/mcp';
+
+function NotCloudFallback(): JSX.Element {
+	const { t } = useTranslation('mcpServer');
+	const onClick = useCallback(() => {
+		logEvent(ANALYTICS.DOCS_LINK_CLICKED, { target: 'fallback' });
+	}, []);
+	return (
+		<div className="mcp-settings">
+			<div className="mcp-settings__fallback">
+				<div className="mcp-settings__fallback-title">
+					<Sparkles size={18} /> {t('fallback_title')}
+				</div>
+				<Typography.Text className="mcp-settings__fallback-body">
+					{t('fallback_body')}
+				</Typography.Text>
+				<LearnMore
+					text={t('fallback_docs_link')}
+					url={MCP_DOCS_URL}
+					onClick={onClick}
+				/>
+			</div>
+		</div>
+	);
+}
+
+interface CopyIconButtonProps {
+	ariaLabel: string;
+	onCopy: () => void;
+	disabled?: boolean;
+}
+
+function CopyIconButton({
+	ariaLabel,
+	onCopy,
+	disabled,
+}: CopyIconButtonProps): JSX.Element {
+	const { t } = useTranslation('mcpServer');
+	const tooltipTitle = disabled
+		? t('copy_tooltip_disabled')
+		: t('copy_tooltip_enabled');
+	const button = (
+		<Button
+			type="text"
+			size="small"
+			aria-label={ariaLabel}
+			disabled={disabled}
+			className="mcp-settings__copy-btn"
+			icon={<Copy size={14} />}
+			onClick={onCopy}
+		/>
+	);
+	// Ant Design Tooltip doesn't reliably surface for a disabled Button —
+	// wrap in a span so hover/focus still reaches the Tooltip.
+	return (
+		<Tooltip title={tooltipTitle}>
+			{disabled ? <span>{button}</span> : button}
+		</Tooltip>
+	);
+}
+
+CopyIconButton.defaultProps = {
+	disabled: false,
+};
+
+interface RegionFallbackCardProps {
+	manualRegion: string;
+	onRegionChange: (value: string) => void;
+	onIngestionLinkClick: () => void;
+	t: TFunction<'mcpServer'>;
+}
+
+function RegionFallbackCard({
+	manualRegion,
+	onRegionChange,
+	onIngestionLinkClick,
+	t,
+}: RegionFallbackCardProps): JSX.Element {
+	const handleChange = useCallback(
+		(e: React.ChangeEvent<HTMLInputElement>) => onRegionChange(e.target.value),
+		[onRegionChange],
+	);
+	return (
+		<div className="mcp-settings__card mcp-settings__region-card">
+			<div className="mcp-settings__region-warning">
+				<TriangleAlert size={14} />
+				<span>
+					{t('region_warning_prefix')}
+					<Button
+						type="link"
+						size="small"
+						className="mcp-settings__inline-link"
+						onClick={onIngestionLinkClick}
+					>
+						{t('region_warning_link')}
+					</Button>
+					{t('region_warning_suffix')}
+				</span>
+			</div>
+			<label
+				className="mcp-settings__auth-field-label"
+				htmlFor="mcp-settings-manual-region"
+			>
+				{t('region_input_label')}
+			</label>
+			<Input
+				id="mcp-settings-manual-region"
+				className="mcp-settings__endpoint-input"
+				size="small"
+				value={manualRegion}
+				placeholder={t('region_input_placeholder')}
+				aria-label={t('region_input_label')}
+				onChange={handleChange}
+			/>
+		</div>
+	);
+}
+
+interface ClientTabsProps {
+	endpoint: string;
+	activeTab: string;
+	onTabChange: (key: string) => void;
+	onCopySnippet: (clientKey: string, snippet: string) => void;
+	onInstallClick: (clientKey: string) => void;
+	onDocsLinkClick: (target: string) => void;
+	t: TFunction<'mcpServer'>;
+}
+
+interface ClientTabChildrenProps {
+	client: McpClient;
+	endpoint: string;
+	onCopySnippet: (clientKey: string, snippet: string) => void;
+	onInstallClick: (clientKey: string) => void;
+	onDocsLinkClick: (target: string) => void;
+	t: TFunction<'mcpServer'>;
+}
+
+function ClientTabChildren({
+	client,
+	endpoint,
+	onCopySnippet,
+	onInstallClick,
+	onDocsLinkClick,
+	t,
+}: ClientTabChildrenProps): JSX.Element {
+	const snippet = client.snippet
+		? client.snippet(endpoint || ENDPOINT_PLACEHOLDER)
+		: null;
+	const installHref =
+		client.installUrl && endpoint ? client.installUrl(endpoint) : null;
+
+	const handleInstallClick = useCallback(() => onInstallClick(client.key), [
+		onInstallClick,
+		client.key,
+	]);
+	const handleDocsClick = useCallback(
+		() => onDocsLinkClick(`client-${client.key}`),
+		[onDocsLinkClick, client.key],
+	);
+	const handleSnippetCopy = useCallback(() => {
+		if (snippet) {
+			onCopySnippet(client.key, snippet);
+		}
+	}, [onCopySnippet, client.key, snippet]);
+
+	const installLabel = client.installLabelKey
+		? t(client.installLabelKey)
+		: `${t('step1_add_to_client_prefix')}${client.label}`;
+	const instructions = client.instructionsKey ? t(client.instructionsKey) : '';
+
+	return (
+		<div className="mcp-settings__snippet-wrapper">
+			{client.installUrl && (
+				<div className="mcp-settings__install-row">
+					<Button
+						type="primary"
+						disabled={!installHref}
+						icon={<Download size={14} />}
+						href={installHref ?? undefined}
+						onClick={handleInstallClick}
+					>
+						{installLabel}
+					</Button>
+					<Typography.Text className="mcp-settings__helper-text">
+						{t('step1_manual_fallback')}
+					</Typography.Text>
+				</div>
+			)}
+			{snippet !== null ? (
+				<div className="mcp-settings__endpoint-value mcp-settings__snippet">
+					<pre className="mcp-settings__snippet-pre">{snippet}</pre>
+					<CopyIconButton
+						ariaLabel={`${t('copy_aria_snippet_prefix')}${client.label}${t(
+							'copy_aria_snippet_suffix',
+						)}`}
+						disabled={!endpoint}
+						onCopy={handleSnippetCopy}
+					/>
+				</div>
+			) : (
+				<Typography.Text className="mcp-settings__card-description">
+					{instructions}
+				</Typography.Text>
+			)}
+			<LearnMore
+				text={`${client.label}${t('step1_client_docs_suffix')}`}
+				url={docsUrl(client.docsPath)}
+				onClick={handleDocsClick}
+			/>
+		</div>
+	);
+}
+
+function ClientTabs({
+	endpoint,
+	activeTab,
+	onTabChange,
+	onCopySnippet,
+	onInstallClick,
+	onDocsLinkClick,
+	t,
+}: ClientTabsProps): JSX.Element {
+	const items = useMemo(
+		() =>
+			MCP_CLIENTS.map((client: McpClient) => ({
+				key: client.key,
+				label: client.label,
+				children: (
+					<ClientTabChildren
+						client={client}
+						endpoint={endpoint}
+						onCopySnippet={onCopySnippet}
+						onInstallClick={onInstallClick}
+						onDocsLinkClick={onDocsLinkClick}
+						t={t}
+					/>
+				),
+			})),
+		[endpoint, onCopySnippet, onInstallClick, onDocsLinkClick, t],
+	);
+
+	return (
+		<Tabs
+			className="mcp-settings__tabs-container"
+			activeKey={activeTab}
+			onChange={onTabChange}
+			items={items}
+		/>
+	);
+}
+
+interface AuthCardProps {
+	isAdmin: boolean;
+	instanceUrl: string;
+	onCopyInstanceUrl: () => void;
+	onCreateServiceAccount: () => void;
+	t: TFunction<'mcpServer'>;
+}
+
+function AuthCard({
+	isAdmin,
+	instanceUrl,
+	onCopyInstanceUrl,
+	onCreateServiceAccount,
+	t,
+}: AuthCardProps): JSX.Element {
+	return (
+		<section className="mcp-settings__card mcp-settings__cta-card">
+			<h3 className="mcp-settings__card-title">
+				<span className="mcp-settings__step-badge">2</span> {t('step2_title')}
+			</h3>
+			<Typography.Text className="mcp-settings__card-description">
+				{t('step2_description')}
+			</Typography.Text>
+			<div className="mcp-settings__auth-field">
+				<Typography.Text className="mcp-settings__auth-field-label">
+					{t('step2_instance_url_label')}
+				</Typography.Text>
+				<div className="mcp-settings__endpoint-value">
+					<span data-testid="mcp-instance-url">{instanceUrl}</span>
+					<CopyIconButton
+						ariaLabel={t('copy_aria_instance_url')}
+						onCopy={onCopyInstanceUrl}
+					/>
+				</div>
+			</div>
+			<div className="mcp-settings__auth-field">
+				<Typography.Text className="mcp-settings__auth-field-label">
+					{t('step2_api_key_label')}
+				</Typography.Text>
+				{isAdmin ? (
+					<div className="mcp-settings__cta-row">
+						<Button
+							type="primary"
+							icon={<KeyRound size={14} />}
+							onClick={onCreateServiceAccount}
+						>
+							{t('step2_admin_cta')}
+						</Button>
+						<Typography.Text className="mcp-settings__helper-text">
+							{t('step2_admin_helper')}
+						</Typography.Text>
+					</div>
+				) : (
+					<div className="mcp-settings__info-banner-inline">
+						<Info size={14} />
+						<Typography.Text className="mcp-settings__helper-text">
+							{t('step2_viewer_helper')}
+						</Typography.Text>
+					</div>
+				)}
+			</div>
+		</section>
+	);
+}
+
+interface UseCasesCardProps {
+	onDocsLinkClick: (target: string) => void;
+	t: TFunction<'mcpServer'>;
+}
+
+function UseCasesCard({ onDocsLinkClick, t }: UseCasesCardProps): JSX.Element {
+	const handleClick = useCallback(() => onDocsLinkClick('use-cases'), [
+		onDocsLinkClick,
+	]);
+	return (
+		<section className="mcp-settings__card mcp-settings__use-cases">
+			<h3 className="mcp-settings__card-title">{t('use_cases_title')}</h3>
+			<ul className="mcp-settings__use-cases-list">
+				<li>{t('use_cases_item_1')}</li>
+				<li>{t('use_cases_item_2')}</li>
+				<li>{t('use_cases_item_3')}</li>
+				<li>{t('use_cases_item_4')}</li>
+			</ul>
+			<LearnMore
+				text={t('use_cases_docs_link')}
+				url={MCP_USE_CASES_URL}
+				onClick={handleClick}
+			/>
+		</section>
+	);
+}
+
+function MCPServerSettings(): JSX.Element {
+	const { t } = useTranslation('mcpServer');
+	const { user } = useAppContext();
+	const { isCloudUser } = useGetTenantLicense();
+	const { notifications } = useNotifications();
+	const [, copyToClipboard] = useCopyToClipboard();
+
+	const isAdmin = user.role === USER_ROLES.ADMIN;
+	const instanceUrl = window.location.origin;
+
+	const { data: globalConfig } = useGetGlobalConfig();
+	const regionFromHost = useMemo(() => getCloudRegion(), []);
+	const regionFromIngestion = useMemo(
+		() =>
+			globalConfig?.data?.ingestion_url
+				? parseRegionFromUrl(globalConfig.data.ingestion_url)
+				: null,
+		[globalConfig?.data?.ingestion_url],
+	);
+
+	const autoDetectedRegion = regionFromHost.region ?? regionFromIngestion;
+
+	const [manualRegion, setManualRegion] = useState<string>('');
+	const [activeTab, setActiveTab] = useState<string>(MCP_CLIENTS[0]?.key ?? '');
+
+	const resolvedRegion: string | null =
+		autoDetectedRegion ?? normalizeRegion(manualRegion);
+
+	const endpoint = resolvedRegion ? buildMcpEndpoint(resolvedRegion) : '';
+
+	// Fire once on mount so we reliably capture every visit, even if the
+	// globalConfig fetch is slow or fails. Region is best-effort from the
+	// hostname at mount time; if ingestion_url resolves later we skip logging
+	// again to avoid double-fires.
+	useEffect(() => {
+		logEvent(ANALYTICS.PAGE_VIEWED, {
+			isCloudUser,
+			role: user.role,
+			region: regionFromHost.region,
+			isAutoDetected: Boolean(regionFromHost.region),
+		});
+		// eslint-disable-next-line react-hooks/exhaustive-deps
+	}, []);
+
+	const handleCopySnippet = useCallback(
+		(clientKey: string, snippet: string) => {
+			if (!endpoint) {
+				notifications.warning({ message: t('toast_region_required') });
+				return;
+			}
+			copyToClipboard(snippet);
+			notifications.success({ message: t('toast_snippet_copied') });
+			logEvent(ANALYTICS.SNIPPET_COPIED, { client: clientKey });
+		},
+		[endpoint, copyToClipboard, notifications, t],
+	);
+
+	const handleCreateServiceAccount = useCallback(() => {
+		logEvent(ANALYTICS.CREATE_SA_CLICKED, {});
+		history.push(
+			`${ROUTES.SERVICE_ACCOUNTS_SETTINGS}?${SA_QUERY_PARAMS.CREATE_SA}=true`,
+		);
+	}, []);
+
+	const handleCopyInstanceUrl = useCallback(() => {
+		copyToClipboard(instanceUrl);
+		notifications.success({ message: t('toast_instance_url_copied') });
+		logEvent(ANALYTICS.INSTANCE_URL_COPIED, {});
+	}, [copyToClipboard, instanceUrl, notifications, t]);
+
+	const handleDocsLinkClick = useCallback((target: string) => {
+		logEvent(ANALYTICS.DOCS_LINK_CLICKED, { target });
+	}, []);
+
+	const handleIngestionLinkClick = useCallback(() => {
+		logEvent(ANALYTICS.DOCS_LINK_CLICKED, { target: 'ingestion-settings' });
+		history.push(ROUTES.INGESTION_SETTINGS);
+	}, []);
+
+	const handleInstallClick = useCallback((clientKey: string) => {
+		logEvent(ANALYTICS.ONE_CLICK_INSTALL_CLICKED, { client: clientKey });
+	}, []);
+
+	const handleTabChange = useCallback((key: string) => {
+		setActiveTab(key);
+		logEvent(ANALYTICS.CLIENT_TAB_SELECTED, { client: key });
+	}, []);
+
+	if (!isCloudUser) {
+		return <NotCloudFallback />;
+	}
+
+	return (
+		<div className="mcp-settings" data-testid="mcp-settings">
+			<header className="mcp-settings__header">
+				<h2 className="mcp-settings__header-title">
+					<Sparkles size={20} /> {t('page_title')}
+				</h2>
+				<Typography.Text className="mcp-settings__header-subtitle">
+					{t('page_subtitle')}
+				</Typography.Text>
+			</header>
+
+			{!autoDetectedRegion && (
+				<RegionFallbackCard
+					manualRegion={manualRegion}
+					onRegionChange={setManualRegion}
+					onIngestionLinkClick={handleIngestionLinkClick}
+					t={t}
+				/>
+			)}
+
+			<section className="mcp-settings__card">
+				<h3 className="mcp-settings__card-title">
+					<span className="mcp-settings__step-badge">1</span> {t('step1_title')}
+				</h3>
+				<Typography.Text className="mcp-settings__card-description">
+					{t('step1_description')}
+				</Typography.Text>
+				<ClientTabs
+					endpoint={endpoint}
+					activeTab={activeTab}
+					onTabChange={handleTabChange}
+					onCopySnippet={handleCopySnippet}
+					onInstallClick={handleInstallClick}
+					onDocsLinkClick={handleDocsLinkClick}
+					t={t}
+				/>
+			</section>
+
+			<AuthCard
+				isAdmin={isAdmin}
+				instanceUrl={instanceUrl}
+				onCopyInstanceUrl={handleCopyInstanceUrl}
+				onCreateServiceAccount={handleCreateServiceAccount}
+				t={t}
+			/>
+
+			<UseCasesCard onDocsLinkClick={handleDocsLinkClick} t={t} />
+		</div>
+	);
+}
+
+export default MCPServerSettings;

frontend/src/container/MCPServerSettings/clients.ts

@@ -0,0 +1,111 @@
+import { DOCS_BASE_URL } from 'constants/app';
+
+export interface McpClient {
+	key: string;
+	// `label` is the client brand name (Cursor, VS Code, Claude Desktop …).
+	// Brand names are not translated.
+	label: string;
+	docsPath: string;
+	snippet: ((endpoint: string) => string) | null;
+	// i18n key under the `mcpServer` namespace. Resolved at render time via t().
+	instructionsKey?: string;
+	installUrl?: (endpoint: string) => string;
+	// i18n key for the install button label. Falls back to
+	// `step1_add_to_client_prefix` + `label` when not set.
+	installLabelKey?: string;
+}
+
+function b64url(input: string): string {
+	if (typeof btoa === 'function') {
+		return btoa(input);
+	}
+	// fallback for non-browser TS contexts (never hit at runtime)
+	return Buffer.from(input, 'utf8').toString('base64');
+}
+
+export const MCP_CLIENTS: McpClient[] = [
+	{
+		key: 'cursor',
+		label: 'Cursor',
+		docsPath: '/docs/ai/signoz-mcp-server/#cursor',
+		snippet: (endpoint): string =>
+			JSON.stringify(
+				{
+					mcpServers: {
+						signoz: {
+							url: endpoint,
+						},
+					},
+				},
+				null,
+				2,
+			),
+		installUrl: (endpoint): string => {
+			const config = b64url(JSON.stringify({ url: endpoint }));
+			return `cursor://anysphere.cursor-deeplink/mcp/install?name=SigNoz&config=${config}`;
+		},
+		installLabelKey: 'client_cursor_install_label',
+	},
+	{
+		key: 'vscode',
+		label: 'VS Code',
+		docsPath: '/docs/ai/signoz-mcp-server/#vs-code',
+		snippet: (endpoint): string =>
+			JSON.stringify(
+				{
+					servers: {
+						signoz: {
+							type: 'http',
+							url: endpoint,
+						},
+					},
+				},
+				null,
+				2,
+			),
+		installUrl: (endpoint): string => {
+			const payload = encodeURIComponent(
+				JSON.stringify({
+					name: 'signoz',
+					config: { type: 'http', url: endpoint },
+				}),
+			);
+			return `vscode:mcp/install?${payload}`;
+		},
+		installLabelKey: 'client_vscode_install_label',
+	},
+	{
+		key: 'claude-desktop',
+		label: 'Claude Desktop',
+		docsPath: '/docs/ai/signoz-mcp-server/#claude-desktop',
+		snippet: null,
+		instructionsKey: 'client_claude_desktop_instructions',
+	},
+	{
+		key: 'claude-code',
+		label: 'Claude Code',
+		docsPath: '/docs/ai/signoz-mcp-server/#claude-code',
+		snippet: (endpoint): string =>
+			`claude mcp add --scope user --transport http signoz ${endpoint}`,
+	},
+	{
+		key: 'codex',
+		label: 'Codex',
+		docsPath: '/docs/ai/signoz-mcp-server/#codex',
+		snippet: (endpoint): string => `codex mcp add signoz --url ${endpoint}`,
+	},
+	{
+		key: 'other',
+		label: 'Other',
+		docsPath: '/docs/ai/signoz-mcp-server/',
+		snippet: null,
+		instructionsKey: 'client_other_instructions',
+	},
+];
+
+export function docsUrl(path: string): string {
+	return `${DOCS_BASE_URL}${path}`;
+}
+
+export const MCP_DOCS_URL = `${DOCS_BASE_URL}/docs/ai/signoz-mcp-server/`;
+export const MCP_USE_CASES_URL = `${DOCS_BASE_URL}/docs/ai/use-cases/`;

frontend/src/container/MCPServerSettings/getCloudRegion.ts

@@ -0,0 +1,51 @@
+export interface CloudRegionResult {
+	region: string | null;
+	isKnown: boolean;
+}
+
+const VALID_REGION_LABEL = /^[a-z0-9][a-z0-9-]*$/;
+
+export function parseRegionFromSignozCloudHost(host: string): string | null {
+	const parts = host.split('.');
+	const len = parts.length;
+	// SigNoz Cloud tenant hosts follow `<tenant>.<region>.signoz.cloud`
+	// (4 labels). 3-label hosts like `app.signoz.cloud` would wrongly
+	// resolve to region=`app`, so require at least 4 labels.
+	if (len < 4 || parts[len - 1] !== 'cloud' || parts[len - 2] !== 'signoz') {
+		return null;
+	}
+	const region = parts[len - 3]?.toLowerCase() ?? '';
+	if (!VALID_REGION_LABEL.test(region)) {
+		return null;
+	}
+	return region;
+}
+
+export function parseRegionFromUrl(url: string): string | null {
+	try {
+		return parseRegionFromSignozCloudHost(new URL(url).hostname);
+	} catch {
+		return null;
+	}
+}
+
+export function parseCloudRegion(hostname: string): CloudRegionResult {
+	const region = parseRegionFromSignozCloudHost(hostname);
+	return region ? { region, isKnown: true } : { region: null, isKnown: false };
+}
+
+export function normalizeRegion(input: string): string | null {
+	const value = input.trim().toLowerCase();
+	if (!VALID_REGION_LABEL.test(value)) {
+		return null;
+	}
+	return value;
+}
+
+export function buildMcpEndpoint(region: string): string {
+	return `https://mcp.${region}.signoz.cloud/mcp`;
+}
+
+export function getCloudRegion(): CloudRegionResult {
+	return parseCloudRegion(window.location.hostname);
+}

frontend/src/container/OnboardingV2Container/onboarding-configs/onboarding-config-with-links.ts

@@ -192,7 +192,8 @@ const onboardingConfigWithLinks = [
 			'setup',
 		],
 		imgUrl: signozBrandLogoUrl,
-		link: '/docs/ai/signoz-mcp-server/',
+		link: '/settings/mcp-server',
+		internalRedirect: true,
 	},
 	{
 		dataSource: 'migrate-from-datadog',

frontend/src/container/SideNav/menuItems.tsx

@@ -32,6 +32,7 @@ import {
 	Settings,
 	Shield,
 	Slack,
+	Sparkles,
 	Unplug,
 	User,
 	UserPlus,
@@ -337,6 +338,13 @@ export const settingsNavSections: SettingsNavSection[] = [
 				isEnabled: false,
 				itemKey: 'integrations',
 			},
+			{
+				key: ROUTES.MCP_SERVER,
+				label: 'MCP Server',
+				icon: <Sparkles size={16} />,
+				isEnabled: false,
+				itemKey: 'mcp-server',
+			},
 		],
 	},
 

frontend/src/container/TopNav/DateTimeSelectionV2/constants.ts

@@ -157,6 +157,7 @@ export const routesToSkip = [
 	ROUTES.ORG_SETTINGS,
 	ROUTES.MEMBERS_SETTINGS,
 	ROUTES.SERVICE_ACCOUNTS_SETTINGS,
+	ROUTES.MCP_SERVER,
 	ROUTES.INGESTION_SETTINGS,
 	ROUTES.ERROR_DETAIL,
 	ROUTES.LOGS_PIPELINES,

frontend/src/pages/Settings/Settings.tsx

@@ -75,6 +75,11 @@ function SettingsPage(): JSX.Element {
 			}
 
 			if (isCloudUser) {
+				updatedItems = updatedItems.map((item) => ({
+					...item,
+					isEnabled: item.key === ROUTES.MCP_SERVER ? true : item.isEnabled,
+				}));
+
 				if (isAdmin) {
 					updatedItems = updatedItems.map((item) => ({
 						...item,

frontend/src/pages/Settings/config.tsx

@@ -8,6 +8,7 @@ import GeneralSettings from 'container/GeneralSettings';
 import GeneralSettingsCloud from 'container/GeneralSettingsCloud';
 import IngestionSettings from 'container/IngestionSettings/IngestionSettings';
 import MultiIngestionSettings from 'container/IngestionSettings/MultiIngestionSettings';
+import MCPServerSettings from 'container/MCPServerSettings/MCPServerSettings';
 import MySettings from 'container/MySettings';
 import OrganizationSettings from 'container/OrganizationSettings';
 import RolesSettings from 'container/RolesSettings';
@@ -24,6 +25,7 @@ import {
 	Pencil,
 	Plus,
 	Shield,
+	Sparkles,
 	User,
 	Users,
 } from 'lucide-react';
@@ -205,6 +207,19 @@ export const serviceAccountsSettings = (
 	},
 ];
 
+export const mcpServerSettings = (t: TFunction): RouteTabProps['routes'] => [
+	{
+		Component: MCPServerSettings,
+		name: (
+			<div className="periscope-tab">
+				<Sparkles size={16} /> {t('routes:mcp_server').toString()}
+			</div>
+		),
+		route: ROUTES.MCP_SERVER,
+		key: ROUTES.MCP_SERVER,
+	},
+];
+
 export const createAlertChannels = (t: TFunction): RouteTabProps['routes'] => [
 	{
 		Component: (): JSX.Element => (

frontend/src/pages/Settings/utils.ts

@@ -10,6 +10,7 @@ import {
 	generalSettings,
 	ingestionSettings,
 	keyboardShortcuts,
+	mcpServerSettings,
 	membersSettings,
 	multiIngestionSettings,
 	mySettings,
@@ -79,6 +80,10 @@ export const getRoutes = (
 		...createAlertChannels(t),
 		...editAlertChannels(t),
 		...keyboardShortcuts(t),
+		// Route is registered for everyone so direct-URL visitors see the
+		// in-page fallback. Sidebar visibility is still Cloud-only, gated in
+		// Settings.tsx.
+		...mcpServerSettings(t),
 	);
 
 	return settings;

frontend/src/utils/permission/index.ts

@@ -132,4 +132,5 @@ export const routePermission: Record<keyof typeof ROUTES, ROLES[]> = {
 	METER_EXPLORER_VIEWS: ['ADMIN', 'EDITOR', 'VIEWER'],
 	PUBLIC_DASHBOARD: ['ADMIN', 'EDITOR', 'VIEWER'],
 	ALERT_TYPE_SELECTION: ['ADMIN', 'EDITOR'],
+	MCP_SERVER: ['ADMIN', 'EDITOR', 'VIEWER'],
 };

pkg/querier/consume.go

@@ -419,7 +419,6 @@ func readAsRaw(rows driver.Rows, queryName string) (*qbtypes.RawData, error) {
 
 			rr.Data[name] = val
 		}
-		mergeSpanAttributeColumns(rr.Data)
 		outRows = append(outRows, &rr)
 	}
 	if err := rows.Err(); err != nil {
@@ -432,48 +431,6 @@ func readAsRaw(rows driver.Rows, queryName string) (*qbtypes.RawData, error) {
 	}, nil
 }
 
-// mergeSpanAttributeColumns merges the typed ClickHouse span attribute columns
-// (attributes_string, attributes_number, attributes_bool, resources_string) into
-// unified "attributes" and "resource_attributes" keys, removing the raw columns.
-// It is a no-op if none of the raw columns are present.
-func mergeSpanAttributeColumns(data map[string]any) {
-	attrStr, hasStr := data["attributes_string"]
-	attrNum, hasNum := data["attributes_number"]
-	attrBool, hasBool := data["attributes_bool"]
-	// todo(nitya): move to resource json
-	resStr, hasRes := data["resources_string"]
-
-	if !hasStr && !hasNum && !hasBool && !hasRes {
-		return
-	}
-
-	attributes := make(map[string]any)
-	if m, ok := attrStr.(map[string]string); ok {
-		for k, v := range m {
-			attributes[k] = v
-		}
-	}
-	if m, ok := attrNum.(map[string]float64); ok {
-		for k, v := range m {
-			attributes[k] = v
-		}
-	}
-	if m, ok := attrBool.(map[string]bool); ok {
-		for k, v := range m {
-			attributes[k] = v
-		}
-	}
-	delete(data, "attributes_string")
-	delete(data, "attributes_number")
-	delete(data, "attributes_bool")
-	data["attributes"] = attributes
-
-	if m, ok := resStr.(map[string]string); ok {
-		data["resource"] = m
-	}
-	delete(data, "resources_string")
-}
-
 // numericAsFloat converts numeric types to float64 efficiently.
 func numericAsFloat(v any) float64 {
 	switch x := v.(type) {

pkg/querybuilder/collision.go

@@ -207,16 +207,23 @@ func AdjustKey(key *telemetrytypes.TelemetryFieldKey, keys map[string][]*telemet
 		indexes := []telemetrytypes.JSONDataTypeIndex{}
 		fieldContextsSeen := map[telemetrytypes.FieldContext]bool{}
 		dataTypesSeen := map[telemetrytypes.FieldDataType]bool{}
+		jsonTypesSeen := map[string]*telemetrytypes.JSONDataType{}
 		for _, matchingKey := range matchingKeys {
 			materialized = materialized && matchingKey.Materialized
 			fieldContextsSeen[matchingKey.FieldContext] = true
 			dataTypesSeen[matchingKey.FieldDataType] = true
+			if matchingKey.JSONDataType != nil {
+				jsonTypesSeen[matchingKey.JSONDataType.StringValue()] = matchingKey.JSONDataType
+			}
 			indexes = append(indexes, matchingKey.Indexes...)
 		}
 		for _, matchingKey := range contextPrefixedMatchingKeys {
 			materialized = materialized && matchingKey.Materialized
 			fieldContextsSeen[matchingKey.FieldContext] = true
 			dataTypesSeen[matchingKey.FieldDataType] = true
+			if matchingKey.JSONDataType != nil {
+				jsonTypesSeen[matchingKey.JSONDataType.StringValue()] = matchingKey.JSONDataType
+			}
 			indexes = append(indexes, matchingKey.Indexes...)
 		}
 		key.Materialized = materialized
@@ -241,6 +248,15 @@ func AdjustKey(key *telemetrytypes.TelemetryFieldKey, keys map[string][]*telemet
 				break
 			}
 		}
+
+		if len(jsonTypesSeen) == 1 && key.JSONDataType == nil {
+			// all matching keys have same JSON data type, use it
+			for _, jt := range jsonTypesSeen {
+				actions = append(actions, fmt.Sprintf("Adjusting key %s to have JSON data type %s", key, jt.StringValue()))
+				key.JSONDataType = jt
+				break
+			}
+		}
 	}
 
 	return actions

pkg/querybuilder/where_clause_visitor_test.go

@@ -318,7 +318,7 @@ func TestVisitKey(t *testing.T) {
 					{
 						Name:          "count",
 						FieldContext:  telemetrytypes.FieldContextAttribute,
-						FieldDataType: telemetrytypes.FieldDataTypeInt64,
+						FieldDataType: telemetrytypes.FieldDataTypeNumber,
 					},
 				},
 			},
@@ -326,7 +326,7 @@ func TestVisitKey(t *testing.T) {
 				{
 					Name:          "count",
 					FieldContext:  telemetrytypes.FieldContextAttribute,
-					FieldDataType: telemetrytypes.FieldDataTypeInt64,
+					FieldDataType: telemetrytypes.FieldDataTypeNumber,
 				},
 			},
 			expectedErrors:     nil,

pkg/telemetrylogs/condition_builder.go

@@ -44,6 +44,7 @@ func (c *conditionBuilder) conditionFor(
 			}
 			return cond, nil
 		}
+
 	}
 
 	if operator.IsStringSearchOperator() {

pkg/telemetrylogs/field_mapper.go

@@ -276,10 +276,14 @@ func (m *fieldMapper) FieldFor(ctx context.Context, tsStart, tsEnd uint64, key *
 					continue
 				}
 
-				if key.FieldDataType == telemetrytypes.FieldDataTypeUnspecified {
+				if key.JSONDataType == nil {
 					return "", qbtypes.ErrColumnNotFound
 				}
 
+				if key.KeyNameContainsArray() && !key.JSONDataType.IsArray {
+					return "", errors.NewInvalidInputf(errors.CodeInvalidInput, "FieldFor not supported for nested fields; only supported for flat paths (e.g. body.status.detail) and paths of Array type: %s(%s)", key.Name, key.FieldDataType)
+				}
+
 				expr, err := m.buildFieldForJSON(key)
 				if err != nil {
 					return "", err
@@ -350,6 +354,7 @@ func (m *fieldMapper) ColumnExpressionFor(
 	field *telemetrytypes.TelemetryFieldKey,
 	keys map[string][]*telemetrytypes.TelemetryFieldKey,
 ) (string, error) {
+
 	fieldExpression, err := m.FieldFor(ctx, tsStart, tsEnd, field)
 	if errors.Is(err, qbtypes.ErrColumnNotFound) {
 		// the key didn't have the right context to be added to the query
@@ -388,8 +393,6 @@ func (m *fieldMapper) ColumnExpressionFor(
 			}
 			fieldExpression = fmt.Sprintf("multiIf(%s, NULL)", strings.Join(args, ", "))
 		}
-	} else if err != nil {
-		return "", err
 	}
 
 	return fmt.Sprintf("%s AS `%s`", sqlbuilder.Escape(fieldExpression), field.Name), nil

pkg/telemetrylogs/json_condition_builder.go

@@ -172,15 +172,30 @@ func (c *jsonConditionBuilder) terminalIndexedCondition(node *telemetrytypes.JSO
 	if strings.Contains(fieldPath, telemetrytypes.ArraySepSuffix) {
 		return "", errors.NewInternalf(CodeArrayNavigationFailed, "can not build index condition for array field %s", fieldPath)
 	}
-	if !node.IsTerminal {
-		return "", errors.NewInternalf(errors.CodeInvalidInput, "can not build index condition for non-terminal node %s", fieldPath)
+
+	elemType := node.TerminalConfig.ElemType
+	dynamicExpr := fmt.Sprintf("dynamicElement(%s, '%s')", fieldPath, elemType.StringValue())
+	indexedExpr := assumeNotNull(dynamicExpr)
+
+	// switch the operator and value for exists and not exists
+	switch operator {
+	case qbtypes.FilterOperatorExists:
+		operator = qbtypes.FilterOperatorNotEqual
+		value = getEmptyValue(elemType)
+	case qbtypes.FilterOperatorNotExists:
+		operator = qbtypes.FilterOperatorEqual
+		value = getEmptyValue(elemType)
+	default:
+		// do nothing
 	}
 
-	indexedExpr := schemamigrator.JSONSubColumnIndexExpr(node.Parent.Name, node.Name, node.TerminalConfig.ElemType.StringValue())
-	// TODO(Piyush): indexedExpr should not be formatted here instead value should be formatted
-	// else ClickHouse may not utilize index
 	indexedExpr, formattedValue := querybuilder.DataTypeCollisionHandledFieldName(node.TerminalConfig.Key, value, indexedExpr, operator)
-	return c.applyOperator(sb, indexedExpr, operator, formattedValue)
+	cond, err := c.applyOperator(sb, indexedExpr, operator, formattedValue)
+	if err != nil {
+		return "", err
+	}
+
+	return cond, nil
 }
 
 // buildPrimitiveTerminalCondition builds the condition if the terminal node is a primitive type
@@ -189,31 +204,32 @@ func (c *jsonConditionBuilder) buildPrimitiveTerminalCondition(node *telemetryty
 	fieldPath := node.FieldPath()
 	conditions := []string{}
 
-	// Utilize indexes when available, except for EXISTS/NOT EXISTS checks.
-	// Indexed columns always store a default empty value for absent fields (e.g. "" for strings,
-	// 0 for numbers), so using the index for existence checks would incorrectly exclude rows where
-	// the field genuinely holds the empty/zero value.
+	// utilize indexes for the condition if available
 	//
-	// Note: indexing is also skipped for Array Nested fields because they cannot be indexed.
+	// Note: Indexing code doesn't get executed for Array Nested fields because they can not be indexed
 	indexed := slices.ContainsFunc(node.TerminalConfig.Key.Indexes, func(index telemetrytypes.JSONDataTypeIndex) bool {
 		return index.Type == node.TerminalConfig.ElemType
 	})
-	isExistsCheck := operator == qbtypes.FilterOperatorExists || operator == qbtypes.FilterOperatorNotExists
-	if node.TerminalConfig.ElemType.IndexSupported && indexed && !isExistsCheck {
+	if node.TerminalConfig.ElemType.IndexSupported && indexed {
 		indexCond, err := c.terminalIndexedCondition(node, operator, value, sb)
 		if err != nil {
 			return "", err
 		}
-		// With a concrete non-zero value the index condition is self-contained.
+		// if qb has a definitive value, we can skip adding a condition to
+		// check the existence of the path in the json column
 		if value != nil && value != getEmptyValue(node.TerminalConfig.ElemType) {
 			return indexCond, nil
 		}
-		// The value is nil or the type's zero/empty value. Because indexed columns always store
-		// that zero value for absent fields, the index alone cannot distinguish "field is absent"
-		// from "field exists with zero value". Append a path-existence check (IS NOT NULL) as a
-		// second condition and AND them together.
+
 		conditions = append(conditions, indexCond)
-		operator = qbtypes.FilterOperatorExists
+
+		// Switch operator to EXISTS except when operator is NOT EXISTS since
+		// indexed paths on assumedNotNull, indexes will always have a default
+		// value so we flip the operator to Exists and filter the rows that
+		// actually have the value
+		if operator != qbtypes.FilterOperatorNotExists {
+			operator = qbtypes.FilterOperatorExists
+		}
 	}
 
 	var formattedValue = value
@@ -223,15 +239,20 @@ func (c *jsonConditionBuilder) buildPrimitiveTerminalCondition(node *telemetryty
 
 	fieldExpr := fmt.Sprintf("dynamicElement(%s, '%s')", fieldPath, node.TerminalConfig.ElemType.StringValue())
 
-	// For non-nested paths with a negative comparison operator (e.g. !=, NOT LIKE, NOT IN),
-	// wrap in assumeNotNull so ClickHouse treats absent paths as the zero value rather than NULL,
-	// which would otherwise cause them to be silently dropped from results.
-	// NOT EXISTS is excluded: we want a true NULL check there, not a zero-value stand-in.
+	// if operator is negative and has a value comparison i.e. excluding EXISTS and NOT EXISTS, we need to assume that the field exists everywhere
 	//
-	// Note: for nested array paths, buildAccessNodeBranches already inverts the operator before
-	// reaching here, so IsNonNestedPath() guards against double-applying the wrapping.
-	if node.IsNonNestedPath() && operator.IsNegativeOperator() && operator != qbtypes.FilterOperatorNotExists {
-		fieldExpr = assumeNotNull(fieldExpr)
+	// Note: here applyNotCondition will return true only if; top level path is being queried and operator is a negative operator
+	// Otherwise this code will be triggered by buildAccessNodeBranches; Where operator would've been already inverted if needed.
+	if node.IsNonNestedPath() {
+		yes, _ := applyNotCondition(operator)
+		if yes {
+			switch operator {
+			case qbtypes.FilterOperatorNotExists:
+				// skip
+			default:
+				fieldExpr = assumeNotNull(fieldExpr)
+			}
+		}
 	}
 
 	fieldExpr, formattedValue = querybuilder.DataTypeCollisionHandledFieldName(node.TerminalConfig.Key, formattedValue, fieldExpr, operator)

pkg/telemetrylogs/json_stmt_builder_test.go

@@ -220,7 +220,7 @@ func TestJSONStmtBuilder_PrimitivePaths(t *testing.T) {
 			expected: TestExpected{
 				WhereClause: "(((LOWER(toString(dynamicElement(body_v2.`user.age`, 'Int64'))) LIKE LOWER(?)) AND has(JSONAllPaths(body_v2), 'user.age')) OR ((LOWER(dynamicElement(body_v2.`user.age`, 'String')) LIKE LOWER(?)) AND has(JSONAllPaths(body_v2), 'user.age')))",
 				Args:        []any{"%25%", "%25%", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings:    []string{"Key `user.age` is ambiguous, found 2 different combinations of field context / data type: [name=user.age,context=body,datatype=int64 name=user.age,context=body,datatype=string]."},
+				Warnings:    []string{"Key `user.age` is ambiguous, found 2 different combinations of field context / data type: [name=user.age,context=body,datatype=int64,jsondatatype=Int64 name=user.age,context=body,datatype=string,jsondatatype=String]."},
 			},
 		},
 		{
@@ -413,8 +413,8 @@ func TestStatementBuilderListQueryBodyPromoted(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				Args:     []any{uint64(1747945619), uint64(1747983448), "%1.65%", 1.65, "%1.65%", 1.65, "%1.65%", 1.65, "%1.65%", 1.65, "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings: []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,materialized=true name=education[].parameters,context=body,datatype=[]dynamic,materialized=true]."},
+				Args:     []any{ "%1.65%", 1.65, "%1.65%", 1.65, "%1.65%", 1.65, "%1.65%", 1.65, "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
+				Warnings: []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,materialized=true,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,materialized=true,jsondatatype=Array(Dynamic)]."},
 			},
 			expectedErr: nil,
 		},
@@ -440,8 +440,8 @@ func TestStatementBuilderListQueryBodyPromoted(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				Args:     []any{uint64(1747945619), uint64(1747983448), "%true%", true, "%true%", true, "%true%", true, "%true%", true, "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings: []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,materialized=true name=education[].parameters,context=body,datatype=[]dynamic,materialized=true]."},
+				Args:     []any{ "%true%", true, "%true%", true, "%true%", true, "%true%", true, "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
+				Warnings: []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,materialized=true,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,materialized=true,jsondatatype=Array(Dynamic)]."},
 			},
 			expectedErr: nil,
 		},
@@ -454,8 +454,8 @@ func TestStatementBuilderListQueryBodyPromoted(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				Args:     []any{uint64(1747945619), uint64(1747983448), "%passed%", "passed", "%passed%", "passed", "%passed%", "passed", "%passed%", "passed", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings: []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,materialized=true name=education[].parameters,context=body,datatype=[]dynamic,materialized=true]."},
+				Args:     []any{ "%passed%", "passed", "%passed%", "passed", "%passed%", "passed", "%passed%", "passed", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
+				Warnings: []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,materialized=true,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,materialized=true,jsondatatype=Array(Dynamic)]."},
 			},
 			expectedErr: nil,
 		},
@@ -549,7 +549,7 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 			expected: TestExpected{
 				WhereClause: "((NOT arrayExists(`body_v2.education`-> toFloat64OrNull(dynamicElement(`body_v2.education`.`type`, 'String')) = ?, dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND (NOT arrayExists(`body_v2.education`-> dynamicElement(`body_v2.education`.`type`, 'Int64') = ?, dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))))",
 				Args:        []any{int64(10001), int64(10001), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings:    []string{"Key `education[].type` is ambiguous, found 2 different combinations of field context / data type: [name=education[].type,context=body,datatype=string name=education[].type,context=body,datatype=int64]."},
+				Warnings:    []string{"Key `education[].type` is ambiguous, found 2 different combinations of field context / data type: [name=education[].type,context=body,datatype=string,jsondatatype=String name=education[].type,context=body,datatype=int64,jsondatatype=Int64]."},
 			},
 		},
 		{
@@ -576,7 +576,7 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 			expected: TestExpected{
 				WhereClause: "(((arrayExists(`body_v2.education`-> (arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))')) OR arrayExists(x -> toFloat64(x) = ?, dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))'))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'education')) OR ((arrayExists(`body_v2.education`-> (arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)'))) OR arrayExists(x -> accurateCastOrNull(x, 'Float64') = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)')))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'education')))",
 				Args:        []any{"%1.65%", 1.65, "%1.65%", 1.65, "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64 name=education[].parameters,context=body,datatype=[]dynamic]."},
+				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,jsondatatype=Array(Dynamic)]."},
 			},
 		},
 		{
@@ -585,7 +585,7 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 			expected: TestExpected{
 				WhereClause: "(((arrayExists(`body_v2.education`-> arrayExists(x -> toString(x) = ?, dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))')), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'education')) OR ((arrayExists(`body_v2.education`-> arrayExists(x -> toString(x) = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)'))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'education')))",
 				Args:        []any{"passed", "passed", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64 name=education[].parameters,context=body,datatype=[]dynamic]."},
+				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,jsondatatype=Array(Dynamic)]."},
 			},
 		},
 		{
@@ -594,7 +594,7 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 			expected: TestExpected{
 				WhereClause: "(((arrayExists(`body_v2.education`-> (arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))')) OR arrayExists(x -> toString(x) = ?, dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))'))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'education')) OR ((arrayExists(`body_v2.education`-> (arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)'))) OR arrayExists(x -> toString(x) = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)')))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'education')))",
 				Args:        []any{"%passed%", "passed", "%passed%", "passed", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64 name=education[].parameters,context=body,datatype=[]dynamic]."},
+				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,jsondatatype=Array(Dynamic)]."},
 			},
 		},
 		{
@@ -603,7 +603,7 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 			expected: TestExpected{
 				WhereClause: "(((arrayExists(`body_v2.education`-> arrayExists(x -> toFloat64(x) IN (?, ?), dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))')), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'education')) OR ((arrayExists(`body_v2.education`-> arrayExists(x -> toString(x) IN (?, ?), arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)'))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'education')))",
 				Args:        []any{1.65, 1.99, "1.65", "1.99", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64 name=education[].parameters,context=body,datatype=[]dynamic]."},
+				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,jsondatatype=Array(Dynamic)]."},
 			},
 		},
 		{
@@ -612,7 +612,7 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 			expected: TestExpected{
 				WhereClause: "((NOT arrayExists(`body_v2.education`-> (arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))')) OR arrayExists(x -> toFloat64(x) = ?, dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))'))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND (NOT arrayExists(`body_v2.education`-> (arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)'))) OR arrayExists(x -> accurateCastOrNull(x, 'Float64') = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)')))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))))",
 				Args:        []any{"%1.65%", float64(1.65), "%1.65%", float64(1.65), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64 name=education[].parameters,context=body,datatype=[]dynamic]."},
+				Warnings:    []string{"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,jsondatatype=Array(Dynamic)]."},
 			},
 		},
 		{
@@ -622,7 +622,7 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 				WhereClause: "(has(arrayFlatten(arrayConcat(arrayMap(`body_v2.education`->dynamicElement(`body_v2.education`.`parameters`, 'Array(Nullable(Float64))'), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))')))), ?) OR has(arrayFlatten(arrayConcat(arrayMap(`body_v2.education`->dynamicElement(`body_v2.education`.`parameters`, 'Array(Dynamic)'), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))')))), ?))",
 				Args:        []any{1.65, 1.65, "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 				Warnings: []string{
-					"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64 name=education[].parameters,context=body,datatype=[]dynamic].",
+					"Key `education[].parameters` is ambiguous, found 2 different combinations of field context / data type: [name=education[].parameters,context=body,datatype=[]float64,jsondatatype=Array(Nullable(Float64)) name=education[].parameters,context=body,datatype=[]dynamic,jsondatatype=Array(Dynamic)].",
 				},
 			},
 		},
@@ -702,7 +702,7 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 			expected: TestExpected{
 				WhereClause: "(((arrayExists(`body_v2.interests`-> arrayExists(`body_v2.interests[].entities`-> arrayExists(`body_v2.interests[].entities[].reviews`-> arrayExists(`body_v2.interests[].entities[].reviews[].entries`-> arrayExists(`body_v2.interests[].entities[].reviews[].entries[].metadata`-> arrayExists(`body_v2.interests[].entities[].reviews[].entries[].metadata[].positions`-> (arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), dynamicElement(`body_v2.interests[].entities[].reviews[].entries[].metadata[].positions`.`ratings`, 'Array(Nullable(Int64))')) OR arrayExists(x -> toFloat64(x) = ?, dynamicElement(`body_v2.interests[].entities[].reviews[].entries[].metadata[].positions`.`ratings`, 'Array(Nullable(Int64))'))), dynamicElement(`body_v2.interests[].entities[].reviews[].entries[].metadata`.`positions`, 'Array(JSON(max_dynamic_types=0, max_dynamic_paths=0))')), dynamicElement(`body_v2.interests[].entities[].reviews[].entries`.`metadata`, 'Array(JSON(max_dynamic_types=1, max_dynamic_paths=0))')), dynamicElement(`body_v2.interests[].entities[].reviews`.`entries`, 'Array(JSON(max_dynamic_types=2, max_dynamic_paths=0))')), dynamicElement(`body_v2.interests[].entities`.`reviews`, 'Array(JSON(max_dynamic_types=4, max_dynamic_paths=0))')), dynamicElement(`body_v2.interests`.`entities`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), dynamicElement(body_v2.`interests`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'interests')) OR ((arrayExists(`body_v2.interests`-> arrayExists(`body_v2.interests[].entities`-> arrayExists(`body_v2.interests[].entities[].reviews`-> arrayExists(`body_v2.interests[].entities[].reviews[].entries`-> arrayExists(`body_v2.interests[].entities[].reviews[].entries[].metadata`-> arrayExists(`body_v2.interests[].entities[].reviews[].entries[].metadata[].positions`-> (arrayExists(x -> LOWER(x) LIKE LOWER(?), dynamicElement(`body_v2.interests[].entities[].reviews[].entries[].metadata[].positions`.`ratings`, 'Array(Nullable(String))')) OR arrayExists(x -> toFloat64OrNull(x) = ?, dynamicElement(`body_v2.interests[].entities[].reviews[].entries[].metadata[].positions`.`ratings`, 'Array(Nullable(String))'))), dynamicElement(`body_v2.interests[].entities[].reviews[].entries[].metadata`.`positions`, 'Array(JSON(max_dynamic_types=0, max_dynamic_paths=0))')), dynamicElement(`body_v2.interests[].entities[].reviews[].entries`.`metadata`, 'Array(JSON(max_dynamic_types=1, max_dynamic_paths=0))')), dynamicElement(`body_v2.interests[].entities[].reviews`.`entries`, 'Array(JSON(max_dynamic_types=2, max_dynamic_paths=0))')), dynamicElement(`body_v2.interests[].entities`.`reviews`, 'Array(JSON(max_dynamic_types=4, max_dynamic_paths=0))')), dynamicElement(`body_v2.interests`.`entities`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), dynamicElement(body_v2.`interests`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'interests')))",
 				Args:        []any{"%4%", float64(4), "%4%", float64(4), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings:    []string{"Key `interests[].entities[].reviews[].entries[].metadata[].positions[].ratings` is ambiguous, found 2 different combinations of field context / data type: [name=interests[].entities[].reviews[].entries[].metadata[].positions[].ratings,context=body,datatype=[]int64 name=interests[].entities[].reviews[].entries[].metadata[].positions[].ratings,context=body,datatype=[]string]."},
+				Warnings:    []string{"Key `interests[].entities[].reviews[].entries[].metadata[].positions[].ratings` is ambiguous, found 2 different combinations of field context / data type: [name=interests[].entities[].reviews[].entries[].metadata[].positions[].ratings,context=body,datatype=[]int64,jsondatatype=Array(Nullable(Int64)) name=interests[].entities[].reviews[].entries[].metadata[].positions[].ratings,context=body,datatype=[]string,jsondatatype=Array(Nullable(String))]."},
 			},
 		},
 		{
@@ -761,35 +761,27 @@ func TestJSONStmtBuilder_ArrayPaths(t *testing.T) {
 			},
 		},
 		{
-			name:   "dynamic_array_element_compare_CONTAINS",
-			filter: "interests[].entities[].product_codes Contains 1",
+			name:   "dynamic array element comparison",
+			filter: "ids Contains 1",
 			expected: TestExpected{
-				WhereClause: "((arrayExists(`body_v2.interests`-> arrayExists(`body_v2.interests[].entities`-> (arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.interests[].entities`.`product_codes`, 'Array(Dynamic)'))) OR arrayExists(x -> accurateCastOrNull(x, 'Float64') = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.interests[].entities`.`product_codes`, 'Array(Dynamic)')))), dynamicElement(`body_v2.interests`.`entities`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), dynamicElement(body_v2.`interests`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))'))) AND has(JSONAllPaths(body_v2), 'interests'))",
+				WhereClause: "(((arrayExists(x -> LOWER(toString(x)) LIKE LOWER(?), arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(body_v2.`ids`, 'Array(Dynamic)'))) OR arrayExists(x -> accurateCastOrNull(x, 'Float64') = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(body_v2.`ids`, 'Array(Dynamic)'))))) AND has(JSONAllPaths(body_v2), 'ids'))",
 				Args:        []any{"%1%", float64(1), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
 		{
-			name:   "dynamic_array_element_compare_HAS_STRING",
-			filter: "has(interests[].entities[].product_codes, '2002')",
+			name:   "dynamic array element comparison",
+			filter: "ids != '1'",
 			expected: TestExpected{
-				WhereClause: "has(arrayFlatten(arrayConcat(arrayMap(`body_v2.interests`->arrayMap(`body_v2.interests[].entities`->dynamicElement(`body_v2.interests[].entities`.`product_codes`, 'Array(Dynamic)'), dynamicElement(`body_v2.interests`.`entities`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), dynamicElement(body_v2.`interests`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))')))), ?)",
-				Args:        []any{"2002", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-			},
-		},
-		{
-			name:   "dynamic_array_element_compare_NOT_EQUAL",
-			filter: "interests[].entities[].product_codes != '1'",
-			expected: TestExpected{
-				WhereClause: "(NOT arrayExists(`body_v2.interests`-> arrayExists(`body_v2.interests[].entities`-> arrayExists(x -> accurateCastOrNull(x, 'Float64') = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(`body_v2.interests[].entities`.`product_codes`, 'Array(Dynamic)'))), dynamicElement(`body_v2.interests`.`entities`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), dynamicElement(body_v2.`interests`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))')))",
+				WhereClause: "(NOT arrayExists(x -> accurateCastOrNull(x, 'Float64') = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(body_v2.`ids`, 'Array(Dynamic)'))))",
 				Args:        []any{int64(1), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
 		{
-			name:   "dynamic_array_element_compare_HAS_INT",
-			filter: "has(interests[].entities[].product_codes, 1001)",
+			name:   "dynamic array element comparison boolean",
+			filter: "ids = true",
 			expected: TestExpected{
-				WhereClause: "has(arrayFlatten(arrayConcat(arrayMap(`body_v2.interests`->arrayMap(`body_v2.interests[].entities`->dynamicElement(`body_v2.interests[].entities`.`product_codes`, 'Array(Dynamic)'), dynamicElement(`body_v2.interests`.`entities`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), dynamicElement(body_v2.`interests`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))')))), ?)",
-				Args:        []any{float64(1001), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
+				WhereClause: "((arrayExists(x -> accurateCastOrNull(x, 'Bool') = ?, arrayFilter(x->(dynamicType(x) IN ('String', 'Int64', 'Float64', 'Bool')), dynamicElement(body_v2.`ids`, 'Array(Dynamic)')))) AND has(JSONAllPaths(body_v2), 'ids'))",
+				Args:        []any{true, "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
 	}
@@ -836,7 +828,7 @@ func TestJSONStmtBuilder_IndexedPaths(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				WhereClause: "((lower(assumeNotNull(dynamicElement(body_v2.user.name, 'String'))) = ?) AND has(JSONAllPaths(body_v2), 'user.name'))",
+				WhereClause: "((assumeNotNull(dynamicElement(body_v2.`user.name`, 'String')) = ?) AND has(JSONAllPaths(body_v2), 'user.name'))",
 				Args:        []any{"alice", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
@@ -848,14 +840,11 @@ func TestJSONStmtBuilder_IndexedPaths(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				WhereClause: "((toFloat64(assumeNotNull(dynamicElement(body_v2.user.address.zip, 'Int64'))) = ?) AND has(JSONAllPaths(body_v2), 'user.address.zip'))",
+				WhereClause: "((toFloat64(assumeNotNull(dynamicElement(body_v2.`user.address.zip`, 'Int64'))) = ?) AND has(JSONAllPaths(body_v2), 'user.address.zip'))",
 				Args:        []any{float64(110001), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
-		// ── indexed exists: index is skipped; emits plain IS NOT NULL ───────────
-		// EXISTS/NOT EXISTS bypass the index because indexed columns store a default
-		// empty value for absent fields, making != "" unreliable for existence checks
-		// (a field with value "" would be incorrectly excluded).
+		// ── indexed exists: emits assumeNotNull != nil AND dynamicElement IS NOT NULL ─
 		{
 			name: "Indexed String Exists",
 			query: qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]{
@@ -864,8 +853,8 @@ func TestJSONStmtBuilder_IndexedPaths(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				WhereClause: "(dynamicElement(body_v2.`user.name`, 'String') IS NOT NULL)",
-				Args:        []any{"1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
+				WhereClause: "((assumeNotNull(dynamicElement(body_v2.`user.name`, 'String')) <> ? AND dynamicElement(body_v2.`user.name`, 'String') IS NOT NULL))",
+				Args:        []any{"", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
 		// ── indexed not-equal: assumeNotNull wrapping + no path index ─────────
@@ -877,10 +866,26 @@ func TestJSONStmtBuilder_IndexedPaths(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				WhereClause: "(lower(assumeNotNull(dynamicElement(body_v2.user.name, 'String'))) <> ?)",
+				WhereClause: "(assumeNotNull(dynamicElement(body_v2.`user.name`, 'String')) <> ?)",
 				Args:        []any{"alice", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
+		// ── indexed not-exists: assumeNotNull = "" AND assumeNotNull IS NOT NULL ─
+		// FilterOperatorNotExists → Equal + emptyValue("") in the indexed branch,
+		// then a second condition flipped to Exists (IS NOT NULL) on the same
+		// assumeNotNull expr, producing AND(= "", IS NOT NULL).
+		{
+			name: "Indexed String NotExists",
+			query: qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]{
+				Signal: telemetrytypes.SignalLogs,
+				Filter: &qbtypes.Filter{Expression: "body.user.name NOT EXISTS"},
+				Limit:  10,
+			},
+			expected: TestExpected{
+				WhereClause: "((assumeNotNull(dynamicElement(body_v2.`user.name`, 'String')) = ? AND dynamicElement(body_v2.`user.name`, 'String') IS NULL))",
+				Args:        []any{"", "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
+			},
+		},
 
 		// ── special-character indexed paths ───────────────────────────────────
 		{
@@ -891,7 +896,7 @@ func TestJSONStmtBuilder_IndexedPaths(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				WhereClause: "(((toFloat64(assumeNotNull(dynamicElement(body_v2.`http-status`, 'Int64'))) = ?) AND has(JSONAllPaths(body_v2), 'http-status')) OR ((toFloat64OrNull(lower(assumeNotNull(dynamicElement(body_v2.`http-status`, 'String')))) = ?) AND has(JSONAllPaths(body_v2), 'http-status')))",
+				WhereClause: "(((toFloat64(assumeNotNull(dynamicElement(body_v2.`http-status`, 'Int64'))) = ?) AND has(JSONAllPaths(body_v2), 'http-status')) OR ((toFloat64OrNull(assumeNotNull(dynamicElement(body_v2.`http-status`, 'String'))) = ?) AND has(JSONAllPaths(body_v2), 'http-status')))",
 				Args:        []any{float64(200), float64(200), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
@@ -903,7 +908,7 @@ func TestJSONStmtBuilder_IndexedPaths(t *testing.T) {
 				Limit:  10,
 			},
 			expected: TestExpected{
-				WhereClause: "((toFloat64(assumeNotNull(dynamicElement(body_v2.response.`time-taken`, 'Float64'))) > ?) AND has(JSONAllPaths(body_v2), 'response.time-taken'))",
+				WhereClause: "((toFloat64(assumeNotNull(dynamicElement(body_v2.`response.time-taken`, 'Float64'))) > ?) AND has(JSONAllPaths(body_v2), 'response.time-taken'))",
 				Args:        []any{float64(1.5), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
 			},
 		},
@@ -937,192 +942,20 @@ func TestJSONStmtBuilder_IndexedPaths(t *testing.T) {
 		})
 	}
 }
-
-func TestJSONStmtBuilder_SelectField(t *testing.T) {
-	enable, disable := jsonQueryTestUtil(t)
-	enable()
-	defer disable()
-	statementBuilder := buildJSONTestStatementBuilder(t, false)
-
-	cases := []struct {
-		name                string
-		requestType         qbtypes.RequestType
-		query               qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]
-		expected            qbtypes.Statement
-		expectedErrContains string
-	}{
-		{
-			name:        "select_x_education[].awards[].participated[].members",
-			requestType: qbtypes.RequestTypeRaw,
-			query: qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]{
-				Signal:       telemetrytypes.SignalLogs,
-				StepInterval: qbtypes.Step{Duration: 30 * time.Second},
-				Limit:        10,
-				SelectFields: []telemetrytypes.TelemetryFieldKey{
-					{
-						Name: "education[].awards[].participated[].members",
-					},
-				},
-				Filter: &qbtypes.Filter{
-					Expression: "user.name exists",
-				},
-			},
-			expected: qbtypes.Statement{
-				Query: "SELECT timestamp, id, arrayFlatten(arrayConcat(arrayMap(`body_v2.education`->arrayConcat(arrayMap(`body_v2.education[].awards`->arrayConcat(arrayMap(`body_v2.education[].awards[].participated`->dynamicElement(`body_v2.education[].awards[].participated`.`members`, 'Array(Nullable(String))'), dynamicElement(`body_v2.education[].awards`.`participated`, 'Array(JSON(max_dynamic_types=4, max_dynamic_paths=0))')), arrayMap(`body_v2.education[].awards[].participated`->dynamicElement(`body_v2.education[].awards[].participated`.`members`, 'Array(Nullable(String))'), arrayMap(x->assumeNotNull(dynamicElement(x, 'JSON')), arrayFilter(x->(dynamicType(x) = 'JSON'), dynamicElement(`body_v2.education[].awards`.`participated`, 'Array(Dynamic)'))))), dynamicElement(`body_v2.education`.`awards`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), arrayMap(`body_v2.education[].awards`->arrayConcat(arrayMap(`body_v2.education[].awards[].participated`->dynamicElement(`body_v2.education[].awards[].participated`.`members`, 'Array(Nullable(String))'), dynamicElement(`body_v2.education[].awards`.`participated`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=256))')), arrayMap(`body_v2.education[].awards[].participated`->dynamicElement(`body_v2.education[].awards[].participated`.`members`, 'Array(Nullable(String))'), arrayMap(x->assumeNotNull(dynamicElement(x, 'JSON')), arrayFilter(x->(dynamicType(x) = 'JSON'), dynamicElement(`body_v2.education[].awards`.`participated`, 'Array(Dynamic)'))))), arrayMap(x->assumeNotNull(dynamicElement(x, 'JSON')), arrayFilter(x->(dynamicType(x) = 'JSON'), dynamicElement(`body_v2.education`.`awards`, 'Array(Dynamic)'))))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))')))) AS `education[].awards[].participated[].members` FROM signoz_logs.distributed_logs_v2 WHERE (dynamicElement(body_v2.`user.name`, 'String') IS NOT NULL) AND timestamp >= ? AND ts_bucket_start >= ? AND timestamp < ? AND ts_bucket_start <= ? LIMIT ?",
-				Args:  []any{"1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-			},
-		},
-		{
-			name:        "select_x_education[].awards[].type",
-			requestType: qbtypes.RequestTypeRaw,
-			query: qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]{
-				Signal:       telemetrytypes.SignalLogs,
-				StepInterval: qbtypes.Step{Duration: 30 * time.Second},
-				Limit:        10,
-				SelectFields: []telemetrytypes.TelemetryFieldKey{
-					{
-						Name: "education[].awards[].type",
-					},
-				},
-				Filter: &qbtypes.Filter{
-					Expression: "user.name exists",
-				},
-			},
-			expected: qbtypes.Statement{
-				Query: "SELECT timestamp, id, arrayFlatten(arrayConcat(arrayMap(`body_v2.education`->arrayConcat(arrayMap(`body_v2.education[].awards`->dynamicElement(`body_v2.education[].awards`.`type`, 'String'), dynamicElement(`body_v2.education`.`awards`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), arrayMap(`body_v2.education[].awards`->dynamicElement(`body_v2.education[].awards`.`type`, 'String'), arrayMap(x->assumeNotNull(dynamicElement(x, 'JSON')), arrayFilter(x->(dynamicType(x) = 'JSON'), dynamicElement(`body_v2.education`.`awards`, 'Array(Dynamic)'))))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))')))) AS `education[].awards[].type` FROM signoz_logs.distributed_logs_v2 WHERE (dynamicElement(body_v2.`user.name`, 'String') IS NOT NULL) AND timestamp >= ? AND ts_bucket_start >= ? AND timestamp < ? AND ts_bucket_start <= ? LIMIT ?",
-				Args:  []any{"1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-			},
-		},
-		{
-			name:        "select_x_user.name",
-			requestType: qbtypes.RequestTypeRaw,
-			query: qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]{
-				Signal:       telemetrytypes.SignalLogs,
-				StepInterval: qbtypes.Step{Duration: 30 * time.Second},
-				Limit:        10,
-				SelectFields: []telemetrytypes.TelemetryFieldKey{
-					{
-						Name: "user.name",
-					},
-				},
-			},
-			expected: qbtypes.Statement{
-				Query: "SELECT timestamp, id, dynamicElement(body_v2.`user.name`, 'String') AS `user.name` FROM signoz_logs.distributed_logs_v2 WHERE timestamp >= ? AND ts_bucket_start >= ? AND timestamp < ? AND ts_bucket_start <= ? LIMIT ?",
-				Args:  []any{"1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-			},
-		},
-	}
-
-	for _, c := range cases {
-		t.Run(c.name, func(t *testing.T) {
-			q, err := statementBuilder.Build(context.Background(), 1747947419000, 1747983448000, c.requestType, c.query, nil)
-			if c.expectedErrContains != "" {
-				require.Error(t, err)
-				require.Contains(t, err.Error(), c.expectedErrContains)
-			} else {
-				require.NoError(t, err)
-				require.Equal(t, c.expected.Query, q.Query)
-				require.Equal(t, c.expected.Args, q.Args)
-				require.Equal(t, c.expected.Warnings, q.Warnings)
-			}
-		})
-	}
-}
-
-func TestJSONStmtBuilder_OrderBy(t *testing.T) {
-	enable, disable := jsonQueryTestUtil(t)
-	enable()
-	defer disable()
-	statementBuilder := buildJSONTestStatementBuilder(t, false)
-
-	cases := []struct {
-		name                string
-		requestType         qbtypes.RequestType
-		query               qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]
-		expected            qbtypes.Statement
-		expectedErrContains string
-	}{
-		{
-			name:        "order_by_education[].awards[].participated[].members",
-			requestType: qbtypes.RequestTypeRaw,
-			query: qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]{
-				Signal:       telemetrytypes.SignalLogs,
-				StepInterval: qbtypes.Step{Duration: 30 * time.Second},
-				Limit:        10,
-				Order: []qbtypes.OrderBy{
-					{
-						Key: qbtypes.OrderByKey{
-							TelemetryFieldKey: telemetrytypes.TelemetryFieldKey{
-								Name: "education[].awards[].participated[].members",
-							},
-						},
-						Direction: qbtypes.OrderDirectionAsc,
-					},
-				},
-				Filter: &qbtypes.Filter{
-					Expression: "user.name exists",
-				},
-			},
-			expected: qbtypes.Statement{
-				Query: "SELECT timestamp, id, trace_id, span_id, trace_flags, severity_text, severity_number, scope_name, scope_version, body_v2 as body, attributes_string, attributes_number, attributes_bool, resources_string, scope_string FROM signoz_logs.distributed_logs_v2 WHERE (dynamicElement(body_v2.`user.name`, 'String') IS NOT NULL) AND timestamp >= ? AND ts_bucket_start >= ? AND timestamp < ? AND ts_bucket_start <= ? ORDER BY arrayFlatten(arrayConcat(arrayMap(`body_v2.education`->arrayConcat(arrayMap(`body_v2.education[].awards`->arrayConcat(arrayMap(`body_v2.education[].awards[].participated`->dynamicElement(`body_v2.education[].awards[].participated`.`members`, 'Array(Nullable(String))'), dynamicElement(`body_v2.education[].awards`.`participated`, 'Array(JSON(max_dynamic_types=4, max_dynamic_paths=0))')), arrayMap(`body_v2.education[].awards[].participated`->dynamicElement(`body_v2.education[].awards[].participated`.`members`, 'Array(Nullable(String))'), arrayMap(x->assumeNotNull(dynamicElement(x, 'JSON')), arrayFilter(x->(dynamicType(x) = 'JSON'), dynamicElement(`body_v2.education[].awards`.`participated`, 'Array(Dynamic)'))))), dynamicElement(`body_v2.education`.`awards`, 'Array(JSON(max_dynamic_types=8, max_dynamic_paths=0))')), arrayMap(`body_v2.education[].awards`->arrayConcat(arrayMap(`body_v2.education[].awards[].participated`->dynamicElement(`body_v2.education[].awards[].participated`.`members`, 'Array(Nullable(String))'), dynamicElement(`body_v2.education[].awards`.`participated`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=256))')), arrayMap(`body_v2.education[].awards[].participated`->dynamicElement(`body_v2.education[].awards[].participated`.`members`, 'Array(Nullable(String))'), arrayMap(x->assumeNotNull(dynamicElement(x, 'JSON')), arrayFilter(x->(dynamicType(x) = 'JSON'), dynamicElement(`body_v2.education[].awards`.`participated`, 'Array(Dynamic)'))))), arrayMap(x->assumeNotNull(dynamicElement(x, 'JSON')), arrayFilter(x->(dynamicType(x) = 'JSON'), dynamicElement(`body_v2.education`.`awards`, 'Array(Dynamic)'))))), dynamicElement(body_v2.`education`, 'Array(JSON(max_dynamic_types=16, max_dynamic_paths=0))')))) AS `education[].awards[].participated[].members` asc LIMIT ?",
-				Args:  []any{"1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-			},
-		},
-		{
-			name:        "order_by_user.name",
-			requestType: qbtypes.RequestTypeRaw,
-			query: qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]{
-				Signal:       telemetrytypes.SignalLogs,
-				StepInterval: qbtypes.Step{Duration: 30 * time.Second},
-				Limit:        10,
-				Order: []qbtypes.OrderBy{
-					{
-						Key: qbtypes.OrderByKey{
-							TelemetryFieldKey: telemetrytypes.TelemetryFieldKey{
-								Name: "user.name",
-							},
-						},
-						Direction: qbtypes.OrderDirectionAsc,
-					},
-				},
-			},
-			expected: qbtypes.Statement{
-				Query: "SELECT timestamp, id, trace_id, span_id, trace_flags, severity_text, severity_number, scope_name, scope_version, body_v2 as body, attributes_string, attributes_number, attributes_bool, resources_string, scope_string FROM signoz_logs.distributed_logs_v2 WHERE timestamp >= ? AND ts_bucket_start >= ? AND timestamp < ? AND ts_bucket_start <= ? ORDER BY dynamicElement(body_v2.`user.name`, 'String') AS `user.name` asc LIMIT ?",
-				Args:  []any{"1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-			},
-		},
-	}
-
-	for _, c := range cases {
-		t.Run(c.name, func(t *testing.T) {
-			q, err := statementBuilder.Build(context.Background(), 1747947419000, 1747983448000, c.requestType, c.query, nil)
-			if c.expectedErrContains != "" {
-				require.Error(t, err)
-				require.Contains(t, err.Error(), c.expectedErrContains)
-			} else {
-				require.NoError(t, err)
-				require.Equal(t, c.expected.Query, q.Query)
-				require.Equal(t, c.expected.Args, q.Args)
-				require.Equal(t, c.expected.Warnings, q.Warnings)
-			}
-		})
-	}
-}
-
 func buildTestTelemetryMetadataStore(t *testing.T, addIndexes bool) *telemetrytypestest.MockMetadataStore {
 	mockMetadataStore := telemetrytypestest.NewMockMetadataStore()
 	mockMetadataStore.SetStaticFields(IntrinsicFields)
 	types, _ := telemetrytypes.TestJSONTypeSet()
-	for path, fieldDataTypes := range types {
-		for _, fdt := range fieldDataTypes {
+	for path, jsonTypes := range types {
+		for _, jsonType := range jsonTypes {
 			key := &telemetrytypes.TelemetryFieldKey{
 				Name:          path,
 				Signal:        telemetrytypes.SignalLogs,
 				FieldContext:  telemetrytypes.FieldContextBody,
-				FieldDataType: fdt,
+				FieldDataType: telemetrytypes.MappingJSONDataTypeToFieldDataType[jsonType],
+				JSONDataType:  &jsonType,
 			}
 			if addIndexes {
-				jsonType := telemetrytypes.MappingFieldDataTypeToJSONDataType[fdt]
 				idx := slices.IndexFunc(telemetrytypes.TestIndexedPaths, func(entry telemetrytypes.TestIndexedPathEntry) bool {
 					return entry.Path == path && entry.Type == jsonType
 				})

pkg/telemetrylogs/stmt_builder_test.go

@@ -875,6 +875,7 @@ func TestAdjustKey(t *testing.T) {
 			require.Equal(t, c.expectedKey.FieldContext, key.FieldContext, "field context should match")
 			require.Equal(t, c.expectedKey.FieldDataType, key.FieldDataType, "field data type should match")
 			require.Equal(t, c.expectedKey.Materialized, key.Materialized, "materialized should match")
+			require.Equal(t, c.expectedKey.JSONDataType, key.JSONDataType, "json data type should match")
 			require.Equal(t, c.expectedKey.Indexes, key.Indexes, "json exists should match")
 		})
 	}

pkg/telemetrymetadata/body_json_metadata.go

@@ -21,84 +21,133 @@ import (
 )
 
 var (
+	defaultPathLimit = 100 // Default limit to prevent full table scans
+
+	CodeUnknownJSONDataType     = errors.MustNewCode("unknown_json_data_type")
 	CodeFailLoadPromotedPaths   = errors.MustNewCode("fail_load_promoted_paths")
 	CodeFailCheckPathPromoted   = errors.MustNewCode("fail_check_path_promoted")
+	CodeFailIterateBodyJSONKeys = errors.MustNewCode("fail_iterate_body_json_keys")
+	CodeFailExtractBodyJSONKeys = errors.MustNewCode("fail_extract_body_json_keys")
 	CodeFailLoadLogsJSONIndexes = errors.MustNewCode("fail_load_logs_json_indexes")
 	CodeFailListJSONValues      = errors.MustNewCode("fail_list_json_values")
 	CodeFailScanJSONValue       = errors.MustNewCode("fail_scan_json_value")
 	CodeFailScanVariant         = errors.MustNewCode("fail_scan_variant")
+	CodeFailBuildJSONPathsQuery = errors.MustNewCode("fail_build_json_paths_query")
+	CodeNoPathsToQueryIndexes   = errors.MustNewCode("no_paths_to_query_indexes_provided")
 
 	CodeFailedToPrepareBatch = errors.MustNewCode("failed_to_prepare_batch_promoted_paths")
 	CodeFailedToSendBatch    = errors.MustNewCode("failed_to_send_batch_promoted_paths")
 	CodeFailedToAppendPath   = errors.MustNewCode("failed_to_append_path_promoted_paths")
 )
 
-// enrichJSONKeys enriches body-context keys with promoted path info, indexes,
-// and JSON access plans. parentTypeCache contains parent array types (ArrayJSON/ArrayDynamic)
-// pre-fetched in the main UNION query.
+// fetchBodyJSONPaths extracts body JSON paths from the path_types table
+// This function can be used by both JSONQueryBuilder and metadata extraction
+// uniquePathLimit: 0 for no limit, >0 for maximum number of unique paths to return
+//   - For startup load: set to 10000 to get top 10k unique paths
+//   - For lookup: set to 0 (no limit needed for single path)
+//   - For metadata API: set to desired pagination limit
 //
-// NOTE: enrichment can not work with FuzzySelectors; QB requests exact matches for query building so
-// parentTypeCache will actually have proper matches and
-// FuzzyMatching is for Suggestions API so enrichment is not needed.
-func (t *telemetryMetaStore) enrichJSONKeys(ctx context.Context, selectors []*telemetrytypes.FieldKeySelector, keys []*telemetrytypes.TelemetryFieldKey, parentTypeCache map[string][]telemetrytypes.FieldDataType) error {
-	mapOfExactSelectors := make(map[string]*telemetrytypes.FieldKeySelector)
-	for _, selector := range selectors {
-		if selector.SelectorMatchType != telemetrytypes.FieldSelectorMatchTypeExact {
-			continue
+// searchOperator: LIKE for pattern matching, EQUAL for exact match.
+func (t *telemetryMetaStore) fetchBodyJSONPaths(ctx context.Context,
+	fieldKeySelectors []*telemetrytypes.FieldKeySelector) ([]*telemetrytypes.TelemetryFieldKey, []string, bool, error) {
+	ctx = ctxtypes.NewContextWithCommentVals(ctx, map[string]string{
+		instrumentationtypes.TelemetrySignal:  telemetrytypes.SignalLogs.StringValue(),
+		instrumentationtypes.CodeNamespace:    "metadata",
+		instrumentationtypes.CodeFunctionName: "fetchBodyJSONPaths",
+	})
+
+	query, args, limit := buildGetBodyJSONPathsQuery(fieldKeySelectors)
+	rows, err := t.telemetrystore.ClickhouseDB().Query(ctx, query, args...)
+	if err != nil {
+		return nil, nil, false, errors.WrapInternalf(err, CodeFailExtractBodyJSONKeys, "failed to extract body JSON keys")
+	}
+	defer rows.Close()
+
+	fieldKeys := []*telemetrytypes.TelemetryFieldKey{}
+	paths := []string{}
+	rowCount := 0
+	for rows.Next() {
+		var path string
+		var typesArray []string // ClickHouse returns array as []string
+		var lastSeen uint64
+
+		err = rows.Scan(&path, &typesArray, &lastSeen)
+		if err != nil {
+			return nil, nil, false, errors.WrapInternalf(err, CodeFailExtractBodyJSONKeys, "failed to scan body JSON key row")
 		}
 
-		mapOfExactSelectors[selector.Name] = selector
-	}
-
-	var filteredKeys []*telemetrytypes.TelemetryFieldKey
-	for _, key := range keys {
-		if key.FieldContext == telemetrytypes.FieldContextBody && mapOfExactSelectors[key.Name] != nil {
-			filteredKeys = append(filteredKeys, key)
+		for _, typ := range typesArray {
+			mapping, found := telemetrytypes.MappingStringToJSONDataType[typ]
+			if !found {
+				t.logger.ErrorContext(ctx, "failed to map type string to JSON data type", slog.String("type", typ), slog.String("path", path))
+				continue
+			}
+			fieldKeys = append(fieldKeys, &telemetrytypes.TelemetryFieldKey{
+				Name:          path,
+				Signal:        telemetrytypes.SignalLogs,
+				FieldContext:  telemetrytypes.FieldContextBody,
+				FieldDataType: telemetrytypes.MappingJSONDataTypeToFieldDataType[mapping],
+				JSONDataType:  &mapping,
+			})
 		}
+
+		paths = append(paths, path)
+		rowCount++
+	}
+	if rows.Err() != nil {
+		return nil, nil, false, errors.WrapInternalf(rows.Err(), CodeFailIterateBodyJSONKeys, "error iterating body JSON keys")
 	}
 
-	if len(filteredKeys) == 0 {
-		return nil
-	}
-
-	paths := make([]string, 0, len(filteredKeys))
-	for _, key := range filteredKeys {
-		paths = append(paths, key.Name)
-	}
-
-	// fetch promoted paths
-	promoted, err := t.GetPromotedPaths(ctx, paths...)
-	if err != nil {
-		return err
-	}
-
-	// fetch JSON path indexes
-	indexes, err := t.getJSONPathIndexes(ctx, paths...)
-	if err != nil {
-		return err
-	}
-
-	// apply promoted/index metadata to keys
-	for _, key := range filteredKeys {
-		promotedKey := strings.Split(key.Name, telemetrytypes.ArraySep)[0]
-		key.Materialized = promoted[promotedKey]
-		key.Indexes = indexes[key.Name]
-	}
-
-	// build JSON access plans using the pre-fetched parent type cache
-	return t.buildJSONPlans(filteredKeys, parentTypeCache)
+	return fieldKeys, paths, rowCount <= limit, nil
 }
 
-// buildJSONPlans builds JSON access plans for the given keys
-// using the provided parent type cache (pre-fetched in the main UNION query).
-func (t *telemetryMetaStore) buildJSONPlans(keys []*telemetrytypes.TelemetryFieldKey, typeCache map[string][]telemetrytypes.FieldDataType) error {
-	if len(keys) == 0 {
-		return nil
+func (t *telemetryMetaStore) buildBodyJSONPaths(ctx context.Context,
+	fieldKeySelectors []*telemetrytypes.FieldKeySelector) ([]*telemetrytypes.TelemetryFieldKey, bool, error) {
+
+	fieldKeys, paths, finished, err := t.fetchBodyJSONPaths(ctx, fieldKeySelectors)
+	if err != nil {
+		return nil, false, err
 	}
 
-	columnMeta := t.jsonColumnMetadata[telemetrytypes.SignalLogs][telemetrytypes.FieldContextBody]
+	promoted, err := t.GetPromotedPaths(ctx, paths...)
+	if err != nil {
+		return nil, false, err
+	}
+
+	indexes, err := t.getJSONPathIndexes(ctx, paths...)
+	if err != nil {
+		return nil, false, err
+	}
+
+	for _, fieldKey := range fieldKeys {
+		promotedKey := strings.Split(fieldKey.Name, telemetrytypes.ArraySep)[0]
+		fieldKey.Materialized = promoted[promotedKey]
+		fieldKey.Indexes = indexes[fieldKey.Name]
+	}
+
+	return fieldKeys, finished, t.buildJSONPlans(ctx, fieldKeys)
+}
+
+func (t *telemetryMetaStore) buildJSONPlans(ctx context.Context, keys []*telemetrytypes.TelemetryFieldKey) error {
+	parentSelectors := make([]*telemetrytypes.FieldKeySelector, 0, len(keys))
 	for _, key := range keys {
-		if err := key.SetJSONAccessPlan(columnMeta, typeCache); err != nil {
+		parentSelectors = append(parentSelectors, key.ArrayParentSelectors()...)
+	}
+
+	parentKeys, _, _, err := t.fetchBodyJSONPaths(ctx, parentSelectors)
+	if err != nil {
+		return err
+	}
+
+	typeCache := make(map[string][]telemetrytypes.JSONDataType)
+	for _, key := range parentKeys {
+		typeCache[key.Name] = append(typeCache[key.Name], *key.JSONDataType)
+	}
+
+	// build plans for keys now
+	for _, key := range keys {
+		err = key.SetJSONAccessPlan(t.jsonColumnMetadata[telemetrytypes.SignalLogs][telemetrytypes.FieldContextBody], typeCache)
+		if err != nil {
 			return err
 		}
 	}
@@ -106,6 +155,51 @@ func (t *telemetryMetaStore) buildJSONPlans(keys []*telemetrytypes.TelemetryFiel
 	return nil
 }
 
+func buildGetBodyJSONPathsQuery(fieldKeySelectors []*telemetrytypes.FieldKeySelector) (string, []any, int) {
+	if len(fieldKeySelectors) == 0 {
+		return "", nil, defaultPathLimit
+	}
+	from := fmt.Sprintf("%s.%s", DBName, PathTypesTableName)
+
+	// Build a better query using GROUP BY to deduplicate at database level
+	// This aggregates all types per path and gets the max last_seen, then applies LIMIT
+	sb := sqlbuilder.Select(
+		"path",
+		"groupArray(DISTINCT type) AS types",
+		"max(last_seen) AS last_seen",
+	).From(from)
+
+	limit := 0
+	// Add search filter if provided
+	orClauses := []string{}
+	for _, fieldKeySelector := range fieldKeySelectors {
+		// replace [*] with []
+		fieldKeySelector.Name = strings.ReplaceAll(fieldKeySelector.Name, telemetrytypes.ArrayAnyIndex, telemetrytypes.ArraySep)
+		// Extract search text for body JSON keys
+		keyName := CleanPathPrefixes(fieldKeySelector.Name)
+		if fieldKeySelector.SelectorMatchType == telemetrytypes.FieldSelectorMatchTypeExact {
+			orClauses = append(orClauses, sb.Equal("path", keyName))
+		} else {
+			// Pattern matching for metadata API (defaults to LIKE behavior for other operators)
+			orClauses = append(orClauses, sb.ILike("path", fmt.Sprintf("%%%s%%", querybuilder.FormatValueForContains(keyName))))
+		}
+		limit += fieldKeySelector.Limit
+	}
+	sb.Where(sb.Or(orClauses...))
+	// Group by path to get unique paths with aggregated types
+	sb.GroupBy("path")
+
+	// Order by max last_seen to get most recent paths first
+	sb.OrderBy("last_seen DESC")
+	if limit == 0 {
+		limit = defaultPathLimit
+	}
+	sb.Limit(limit)
+
+	query, args := sb.BuildWithFlavor(sqlbuilder.ClickHouse)
+	return query, args, limit
+}
+
 func (t *telemetryMetaStore) getJSONPathIndexes(ctx context.Context, paths ...string) (map[string][]telemetrytypes.JSONDataTypeIndex, error) {
 	filteredPaths := []string{}
 	for _, path := range paths {

pkg/telemetrymetadata/body_json_metadata_test.go

@@ -7,9 +7,99 @@ import (
 	"github.com/SigNoz/signoz-otel-collector/constants"
 	"github.com/SigNoz/signoz/pkg/querybuilder"
 	"github.com/SigNoz/signoz/pkg/telemetrylogs"
+	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
 	"github.com/stretchr/testify/require"
 )
 
+func TestBuildGetBodyJSONPathsQuery(t *testing.T) {
+	testCases := []struct {
+		name              string
+		fieldKeySelectors []*telemetrytypes.FieldKeySelector
+		expectedSQL       string
+		expectedArgs      []any
+		expectedLimit     int
+	}{
+
+		{
+			name: "Single search text with EQUAL operator",
+			fieldKeySelectors: []*telemetrytypes.FieldKeySelector{
+				{
+					Name:              "user.name",
+					SelectorMatchType: telemetrytypes.FieldSelectorMatchTypeExact,
+				},
+			},
+			expectedSQL:   "SELECT path, groupArray(DISTINCT type) AS types, max(last_seen) AS last_seen FROM signoz_metadata.distributed_field_keys WHERE (path = ?) GROUP BY path ORDER BY last_seen DESC LIMIT ?",
+			expectedArgs:  []any{"user.name", defaultPathLimit},
+			expectedLimit: defaultPathLimit,
+		},
+		{
+			name: "Single search text with LIKE operator",
+			fieldKeySelectors: []*telemetrytypes.FieldKeySelector{
+				{
+					Name:              "user",
+					SelectorMatchType: telemetrytypes.FieldSelectorMatchTypeFuzzy,
+				},
+			},
+			expectedSQL:   "SELECT path, groupArray(DISTINCT type) AS types, max(last_seen) AS last_seen FROM signoz_metadata.distributed_field_keys WHERE (LOWER(path) LIKE LOWER(?)) GROUP BY path ORDER BY last_seen DESC LIMIT ?",
+			expectedArgs:  []any{"%user%", 100},
+			expectedLimit: 100,
+		},
+		{
+			name: "Multiple search texts with EQUAL operator",
+			fieldKeySelectors: []*telemetrytypes.FieldKeySelector{
+				{
+					Name:              "user.name",
+					SelectorMatchType: telemetrytypes.FieldSelectorMatchTypeExact,
+				},
+				{
+					Name:              "user.age",
+					SelectorMatchType: telemetrytypes.FieldSelectorMatchTypeExact,
+				},
+			},
+			expectedSQL:   "SELECT path, groupArray(DISTINCT type) AS types, max(last_seen) AS last_seen FROM signoz_metadata.distributed_field_keys WHERE (path = ? OR path = ?) GROUP BY path ORDER BY last_seen DESC LIMIT ?",
+			expectedArgs:  []any{"user.name", "user.age", defaultPathLimit},
+			expectedLimit: defaultPathLimit,
+		},
+		{
+			name: "Multiple search texts with LIKE operator",
+			fieldKeySelectors: []*telemetrytypes.FieldKeySelector{
+				{
+					Name:              "user",
+					SelectorMatchType: telemetrytypes.FieldSelectorMatchTypeFuzzy,
+				},
+				{
+					Name:              "admin",
+					SelectorMatchType: telemetrytypes.FieldSelectorMatchTypeFuzzy,
+				},
+			},
+			expectedSQL:   "SELECT path, groupArray(DISTINCT type) AS types, max(last_seen) AS last_seen FROM signoz_metadata.distributed_field_keys WHERE (LOWER(path) LIKE LOWER(?) OR LOWER(path) LIKE LOWER(?)) GROUP BY path ORDER BY last_seen DESC LIMIT ?",
+			expectedArgs:  []any{"%user%", "%admin%", defaultPathLimit},
+			expectedLimit: defaultPathLimit,
+		},
+		{
+			name: "Search with Contains operator (should default to LIKE)",
+			fieldKeySelectors: []*telemetrytypes.FieldKeySelector{
+				{
+					Name:              "test",
+					SelectorMatchType: telemetrytypes.FieldSelectorMatchTypeFuzzy,
+				},
+			},
+			expectedSQL:   "SELECT path, groupArray(DISTINCT type) AS types, max(last_seen) AS last_seen FROM signoz_metadata.distributed_field_keys WHERE (LOWER(path) LIKE LOWER(?)) GROUP BY path ORDER BY last_seen DESC LIMIT ?",
+			expectedArgs:  []any{"%test%", defaultPathLimit},
+			expectedLimit: defaultPathLimit,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			query, args, limit := buildGetBodyJSONPathsQuery(tc.fieldKeySelectors)
+			require.Equal(t, tc.expectedSQL, query)
+			require.Equal(t, tc.expectedArgs, args)
+			require.Equal(t, tc.expectedLimit, limit)
+		})
+	}
+}
+
 func TestBuildListLogsJSONIndexesQuery(t *testing.T) {
 	testCases := []struct {
 		name         string

pkg/telemetrymetadata/metadata.go

@@ -397,156 +397,90 @@ func (t *telemetryMetaStore) getLogsKeys(ctx context.Context, fieldKeySelectors
 	// tables to query based on field selectors
 	queryAttributeTable := false
 	queryResourceTable := false
-	queryBodyTable := false
 
 	for _, selector := range fieldKeySelectors {
 		if selector.FieldContext == telemetrytypes.FieldContextUnspecified {
-			// unspecified context, query all tables
+			// unspecified context, query both tables
 			queryAttributeTable = true
 			queryResourceTable = true
-			queryBodyTable = true
 			break
 		} else if selector.FieldContext == telemetrytypes.FieldContextAttribute {
 			queryAttributeTable = true
 		} else if selector.FieldContext == telemetrytypes.FieldContextResource {
 			queryResourceTable = true
-		} else if selector.FieldContext == telemetrytypes.FieldContextBody {
-			queryBodyTable = true
 		}
 	}
 
-	// body keys are gated behind the feature flag
-	queryBodyTable = queryBodyTable && querybuilder.BodyJSONQueryEnabled
-
-	// requestedFieldKeySelectors is the set of names the user explicitly asked for.
-	// Used to ensure a name that is both a parent path AND a directly requested field still surfaces
-	// in the result keys (e.g. "a.b[].c" is a parent of "a.b[].c[].d" but also a queried field).
-	mapOfRequestedSelectors := make(map[string]bool)
-	for _, sel := range fieldKeySelectors {
-		if sel.SelectorMatchType == telemetrytypes.FieldSelectorMatchTypeExact {
-			mapOfRequestedSelectors[sel.Name] = true
-		}
+	tablesToQuery := []struct {
+		fieldContext telemetrytypes.FieldContext
+		shouldQuery  bool
+	}{
+		{telemetrytypes.FieldContextAttribute, queryAttributeTable},
+		{telemetrytypes.FieldContextResource, queryResourceTable},
 	}
 
-	// pre-compute parent array path names from body selectors for JSON plan building;
-	// these will be fetched as a separate UNION arm filtered to ArrayJSON/ArrayDynamic only.
-	parentPaths := make(map[string]bool)
-	if queryBodyTable {
-		for _, sel := range fieldKeySelectors {
-			if sel.FieldContext != telemetrytypes.FieldContextBody &&
-				sel.FieldContext != telemetrytypes.FieldContextUnspecified {
-				continue
-			}
-			key := &telemetrytypes.TelemetryFieldKey{
-				Name:         sel.Name,
-				Signal:       telemetrytypes.SignalLogs,
-				FieldContext: telemetrytypes.FieldContextBody,
-			}
-			if !key.KeyNameContainsArray() {
-				continue
-			}
-			for _, parent := range key.ArrayParentPaths() {
-				parentPaths[parent] = true
-			}
+	for _, table := range tablesToQuery {
+		if !table.shouldQuery {
+			continue
+		}
+
+		fieldContext := table.fieldContext
+
+		// table name based on field context
+		var tblName string
+		if fieldContext == telemetrytypes.FieldContextAttribute {
+			tblName = t.logsDBName + "." + t.logAttributeKeysTblName
+		} else {
+			tblName = t.logsDBName + "." + t.logResourceKeysTblName
 		}
-	}
 
-	// attribute and resource tables share identical schema (name/datatype columns, lower-cased select,
-	// TagDataType encoding) — only the table name and field context differ.
-	addTagTableQuery := func(tblName string, fieldContext telemetrytypes.FieldContext) {
 		sb := sqlbuilder.Select(
 			"name AS tag_key",
 			fmt.Sprintf("'%s' AS tag_type", fieldContext.TagType()),
-			"lower(datatype) AS tag_data_type", // logs had historical mixed-case data
-			fmt.Sprintf("%d AS priority", getPriorityForContext(fieldContext)),
+			"lower(datatype) AS tag_data_type", // in logs, we had some historical data with capital and small case
+			fmt.Sprintf(`%d AS priority`, getPriorityForContext(fieldContext)),
 		).From(tblName)
 
+		var limit int
 		conds := []string{}
-		for _, sel := range fieldKeySelectors {
+
+		for _, fieldKeySelector := range fieldKeySelectors {
 			// Include this selector if:
 			// 1. It has unspecified context (matches all tables)
 			// 2. Its context matches the current table's context
-			if sel.FieldContext != telemetrytypes.FieldContextUnspecified && sel.FieldContext != fieldContext {
+			if fieldKeySelector.FieldContext != telemetrytypes.FieldContextUnspecified &&
+				fieldKeySelector.FieldContext != fieldContext {
 				continue
 			}
+
+			// key part of the selector
 			fieldKeyConds := []string{}
-			if sel.SelectorMatchType == telemetrytypes.FieldSelectorMatchTypeExact {
-				fieldKeyConds = append(fieldKeyConds, sb.E("name", sel.Name))
+			if fieldKeySelector.SelectorMatchType == telemetrytypes.FieldSelectorMatchTypeExact {
+				fieldKeyConds = append(fieldKeyConds, sb.E("name", fieldKeySelector.Name))
 			} else {
-				fieldKeyConds = append(fieldKeyConds, sb.ILike("name", "%"+escapeForLike(sel.Name)+"%"))
+				fieldKeyConds = append(fieldKeyConds, sb.ILike("name", "%"+escapeForLike(fieldKeySelector.Name)+"%"))
 			}
-			if sel.FieldDataType != telemetrytypes.FieldDataTypeUnspecified {
-				fieldKeyConds = append(fieldKeyConds, sb.E("datatype", sel.FieldDataType.TagDataType()))
+
+			// now look at the field data type
+			if fieldKeySelector.FieldDataType != telemetrytypes.FieldDataTypeUnspecified {
+				fieldKeyConds = append(fieldKeyConds, sb.E("datatype", fieldKeySelector.FieldDataType.TagDataType()))
 			}
+
 			if len(fieldKeyConds) > 0 {
 				conds = append(conds, sb.And(fieldKeyConds...))
 			}
+			limit += fieldKeySelector.Limit
 		}
+
 		if len(conds) > 0 {
 			sb.Where(sb.Or(conds...))
 		}
+
 		sb.GroupBy("name", "datatype")
-		query, args := sb.BuildWithFlavor(sqlbuilder.ClickHouse)
-		queries = append(queries, query)
-		allArgs = append(allArgs, args...)
-	}
-
-	if queryAttributeTable {
-		addTagTableQuery(t.logsDBName+"."+t.logAttributeKeysTblName, telemetrytypes.FieldContextAttribute)
-	}
-	if queryResourceTable {
-		addTagTableQuery(t.logsDBName+"."+t.logResourceKeysTblName, telemetrytypes.FieldContextResource)
-	}
-
-	// body context uses a different table/schema (field_name, field_data_type) and requires
-	// signal+context base filters. It also fetches parent array container types (ArrayJSON/ArrayDynamic)
-	// needed for JSON access plan building.
-	if queryBodyTable {
-		sb := sqlbuilder.Select(
-			"field_name AS tag_key",
-			fmt.Sprintf("'%s' AS tag_type", telemetrytypes.FieldContextBody.TagType()),
-			"field_data_type AS tag_data_type",
-			fmt.Sprintf("%d AS priority", getPriorityForContext(telemetrytypes.FieldContextBody)),
-		).From(fmt.Sprintf("%s.%s", DBName, FieldKeysTable))
-
-		sb.Where(sb.E("signal", telemetrytypes.SignalLogs.StringValue()))
-		sb.Where(sb.E("field_context", telemetrytypes.FieldContextBody.StringValue()))
-
-		branches := []string{}
-		for _, sel := range fieldKeySelectors {
-			if sel.FieldContext != telemetrytypes.FieldContextUnspecified && sel.FieldContext != telemetrytypes.FieldContextBody {
-				continue
-			}
-			fieldKeyConds := []string{}
-			if sel.SelectorMatchType == telemetrytypes.FieldSelectorMatchTypeExact {
-				fieldKeyConds = append(fieldKeyConds, sb.E("field_name", sel.Name))
-			} else {
-				fieldKeyConds = append(fieldKeyConds, sb.ILike("field_name", "%"+escapeForLike(sel.Name)+"%"))
-			}
-			if sel.FieldDataType != telemetrytypes.FieldDataTypeUnspecified {
-				fieldKeyConds = append(fieldKeyConds, sb.E("field_data_type", sel.FieldDataType.StringValue()))
-			}
-			if len(fieldKeyConds) > 0 {
-				branches = append(branches, sb.And(fieldKeyConds...))
-			}
+		if limit == 0 {
+			limit = 1000
 		}
-		if len(parentPaths) > 0 {
-			names := make([]any, 0, len(parentPaths))
-			for n := range parentPaths {
-				names = append(names, n)
-			}
-			branches = append(branches, sb.And(
-				sb.In("field_name", names...),
-				sb.In("field_data_type",
-					telemetrytypes.FieldDataTypeArrayDynamic.StringValue(),
-					telemetrytypes.FieldDataTypeArrayJSON.StringValue(),
-				),
-			))
-		}
-		if len(branches) > 0 {
-			sb.Where(sb.Or(branches...))
-		}
-		sb.GroupBy("field_name", "field_data_type")
+
 		query, args := sb.BuildWithFlavor(sqlbuilder.ClickHouse)
 		queries = append(queries, query)
 		allArgs = append(allArgs, args...)
@@ -583,7 +517,6 @@ func (t *telemetryMetaStore) getLogsKeys(ctx context.Context, fieldKeySelectors
 	defer rows.Close()
 
 	keys := []*telemetrytypes.TelemetryFieldKey{}
-	parentTypes := make(map[string][]telemetrytypes.FieldDataType)
 	rowCount := 0
 	searchTexts := []string{}
 
@@ -607,21 +540,6 @@ func (t *telemetryMetaStore) getLogsKeys(ctx context.Context, fieldKeySelectors
 		if err != nil {
 			return nil, false, errors.Wrap(err, errors.TypeInternal, errors.CodeInternal, ErrFailedToGetLogsKeys.Error())
 		}
-
-		// ArrayJSON/ArrayDynamic body rows for parent paths are needed by the JSON access plan
-		// builder (enrichJSONKeys). Always record them in parentTypes. Only skip adding to keys
-		// if the user did not also directly request this name — a field like "education" can be
-		// both a parent of "education[].name" and an explicitly queried field in its own right.
-		switch fieldDataType {
-		case telemetrytypes.FieldDataTypeArrayJSON, telemetrytypes.FieldDataTypeArrayDynamic:
-			if fieldContext == telemetrytypes.FieldContextBody && parentPaths[name] {
-				parentTypes[name] = append(parentTypes[name], fieldDataType)
-				if !mapOfRequestedSelectors[name] {
-					continue // skip; don't register the key.
-				}
-			}
-		}
-
 		key, ok := mapOfKeys[name+";"+fieldContext.StringValue()+";"+fieldDataType.StringValue()]
 
 		// if there is no materialised column, create a key with the field context and data type
@@ -675,11 +593,13 @@ func (t *telemetryMetaStore) getLogsKeys(ctx context.Context, fieldKeySelectors
 		}
 	}
 
-	// enrich body keys with promoted paths, indexes, and JSON access plans
 	if querybuilder.BodyJSONQueryEnabled {
-		if err := t.enrichJSONKeys(ctx, fieldKeySelectors, keys, parentTypes); err != nil {
-			return nil, false, err
+		bodyJSONPaths, finished, err := t.buildBodyJSONPaths(ctx, fieldKeySelectors) // LIKE for pattern matching
+		if err != nil {
+			t.logger.ErrorContext(ctx, "failed to extract body JSON paths", errors.Attr(err))
 		}
+		keys = append(keys, bodyJSONPaths...)
+		complete = complete && finished
 	}
 
 	if _, err := t.updateColumnEvolutionMetadataForKeys(ctx, keys); err != nil {

pkg/telemetrymetadata/tables.go

@@ -1,13 +1,13 @@
 package telemetrymetadata
 
-import otelconst "github.com/SigNoz/signoz-otel-collector/constants"
+import otelcollectorconst "github.com/SigNoz/signoz-otel-collector/constants"
 
 const (
 	DBName                           = "signoz_metadata"
 	AttributesMetadataTableName      = "distributed_attributes_metadata"
 	AttributesMetadataLocalTableName = "attributes_metadata"
 	ColumnEvolutionMetadataTableName = "distributed_column_evolution_metadata"
-	FieldKeysTable                   = otelconst.DistributedFieldKeysTable
+	PathTypesTableName               = otelcollectorconst.DistributedFieldKeysTable
 	// Column Evolution table stores promoted paths as (signal, column_name, field_context, field_name); see signoz-otel-collector metadata_migrations.
 	PromotedPathsTableName = "distributed_column_evolution_metadata"
 	SkipIndexTableName     = "system.data_skipping_indices"

pkg/telemetrytraces/const.go

@@ -1,50 +1,6 @@
 package telemetrytraces
 
-import (
-	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
-)
-
-const (
-
-	// Internal Columns.
-	SpanTimestampBucketStartColumn = "ts_bucket_start"
-	SpanResourceFingerPrintColumn  = "resource_fingerprint"
-
-	// Intrinsic Columns.
-	SpanTimestampColumn        = "timestamp"
-	SpanTraceIDColumn          = "trace_id"
-	SpanSpanIDColumn           = "span_id"
-	SpanTraceStateColumn       = "trace_state"
-	SpanParentSpanIDColumn     = "parent_span_id"
-	SpanFlagsColumn            = "flags"
-	SpanNameColumn             = "name"
-	SpanKindColumn             = "kind"
-	SpanKindStringColumn       = "kind_string"
-	SpanDurationNanoColumn     = "duration_nano"
-	SpanStatusCodeColumn       = "status_code"
-	SpanStatusMessageColumn    = "status_message"
-	SpanStatusCodeStringColumn = "status_code_string"
-	SpanEventsColumn           = "events"
-	SpanLinksColumn            = "links"
-
-	// Calculated Columns.
-	SpanResponseStatusCodeColumn = "response_status_code"
-	SpanExternalHTTPURLColumn    = "external_http_url"
-	SpanHTTPURLColumn            = "http_url"
-	SpanExternalHTTPMethodColumn = "external_http_method"
-	SpanHTTPMethodColumn         = "http_method"
-	SpanHTTPHostColumn           = "http_host"
-	SpanDBNameColumn             = "db_name"
-	SpanDBOperationColumn        = "db_operation"
-	SpanHasErrorColumn           = "has_error"
-	SpanIsRemoteColumn           = "is_remote"
-
-	// Contextual Columns.
-	SpanAttributesStringColumn = "attributes_string"
-	SpanAttributesNumberColumn = "attributes_number"
-	SpanAttributesBoolColumn   = "attributes_bool"
-	SpanResourcesStringColumn  = "resources_string"
-)
+import "github.com/SigNoz/signoz/pkg/types/telemetrytypes"
 
 var (
 	IntrinsicFields = map[string]telemetrytypes.TelemetryFieldKey{

pkg/telemetrytraces/field_mapper_test.go

@@ -78,16 +78,6 @@ func TestGetFieldKeyName(t *testing.T) {
 			expectedResult: "multiIf(resource.`deployment.environment` IS NOT NULL, resource.`deployment.environment`::String, `resource_string_deployment$$environment_exists`==true, `resource_string_deployment$$environment`, NULL)",
 			expectedError:  nil,
 		},
-		{
-			name: "Contextual map column - attributes_string without span context does not short-circuit",
-			key: telemetrytypes.TelemetryFieldKey{
-				Name:          SpanAttributesStringColumn,
-				FieldContext:  telemetrytypes.FieldContextAttribute,
-				FieldDataType: telemetrytypes.FieldDataTypeString,
-			},
-			expectedResult: "attributes_string['attributes_string']",
-			expectedError:  nil,
-		},
 		{
 			name: "Non-existent column",
 			key: telemetrytypes.TelemetryFieldKey{

pkg/telemetrytraces/statement_builder.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"log/slog"
+	"slices"
 	"strings"
 
 	"github.com/SigNoz/signoz/pkg/errors"
@@ -14,6 +15,7 @@ import (
 	qbtypes "github.com/SigNoz/signoz/pkg/types/querybuildertypes/querybuildertypesv5"
 	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
 	"github.com/huandu/go-sqlbuilder"
+	"golang.org/x/exp/maps"
 )
 
 var (
@@ -84,12 +86,40 @@ func (b *traceQueryStatementBuilder) Build(
 		return nil, err
 	}
 
-	isSelectFieldsEmpty := false
+	/*
+		Adding a tech debt note here:
+		This piece of code is a hot fix and should be removed once we close issue: engineering-pod/issues/3622
+	*/
+	/*
+		-------------------------------- Start of tech debt ----------------------------
+	*/
 	if requestType == qbtypes.RequestTypeRaw {
-		// we are expanding here to ensure that all the conflicts are taken care in adjustKeys
-		// i.e if there is a conflict we strip away context of the key in adjustKeys
-		query, isSelectFieldsEmpty = b.expandRawSelectFields(query)
+
+		selectedFields := query.SelectFields
+
+		if len(selectedFields) == 0 {
+			sortedKeys := maps.Keys(DefaultFields)
+			slices.Sort(sortedKeys)
+			for _, key := range sortedKeys {
+				selectedFields = append(selectedFields, DefaultFields[key])
+			}
+			query.SelectFields = selectedFields
+		}
+
+		selectFieldKeys := []string{}
+		for _, field := range selectedFields {
+			selectFieldKeys = append(selectFieldKeys, field.Name)
+		}
+
+		for _, x := range []string{"timestamp", "span_id", "trace_id"} {
+			if !slices.Contains(selectFieldKeys, x) {
+				query.SelectFields = append(query.SelectFields, DefaultFields[x])
+			}
+		}
 	}
+	/*
+		-------------------------------- End of tech debt ----------------------------
+	*/
 
 	query = b.adjustKeys(ctx, keys, query, requestType)
 
@@ -98,7 +128,7 @@ func (b *traceQueryStatementBuilder) Build(
 
 	switch requestType {
 	case qbtypes.RequestTypeRaw:
-		return b.buildListQuery(ctx, q, query, start, end, keys, variables, isSelectFieldsEmpty)
+		return b.buildListQuery(ctx, q, query, start, end, keys, variables)
 	case qbtypes.RequestTypeTimeSeries:
 		return b.buildTimeSeriesQuery(ctx, q, query, start, end, keys, variables)
 	case qbtypes.RequestTypeScalar:
@@ -262,7 +292,6 @@ func (b *traceQueryStatementBuilder) buildListQuery(
 	start, end uint64,
 	keys map[string][]*telemetrytypes.TelemetryFieldKey,
 	variables map[string]qbtypes.VariableItem,
-	isSelectFieldsEmpty bool,
 ) (*qbtypes.Statement, error) {
 
 	var (
@@ -277,6 +306,7 @@ func (b *traceQueryStatementBuilder) buildListQuery(
 		cteArgs = append(cteArgs, args)
 	}
 
+	// TODO: should we deprecate `SelectFields` and return everything from a span like we do for logs?
 	for _, field := range query.SelectFields {
 		colExpr, err := b.fm.ColumnExpressionFor(ctx, start, end, &field, keys)
 		if err != nil {
@@ -285,13 +315,6 @@ func (b *traceQueryStatementBuilder) buildListQuery(
 		sb.SelectMore(colExpr)
 	}
 
-	if isSelectFieldsEmpty {
-		sb.SelectMore(SpanAttributesStringColumn)
-		sb.SelectMore(SpanAttributesNumberColumn)
-		sb.SelectMore(SpanAttributesBoolColumn)
-		sb.SelectMore(SpanResourcesStringColumn)
-	}
-
 	// From table
 	sb.From(fmt.Sprintf("%s.%s", DBName, SpanIndexV3TableName))
 
@@ -818,52 +841,3 @@ func (b *traceQueryStatementBuilder) buildResourceFilterCTE(
 		variables,
 	)
 }
-
-// expandRawSelectFields populates SelectFields for raw (list view) queries.
-// It must be called before adjustKeys so that normalization runs over the full set.
-// Returns the updated query and whether the original SelectFields was empty (i.e. full expansion was performed).
-func (b *traceQueryStatementBuilder) expandRawSelectFields(query qbtypes.QueryBuilderQuery[qbtypes.TraceAggregation]) (qbtypes.QueryBuilderQuery[qbtypes.TraceAggregation], bool) {
-	wasEmpty := len(query.SelectFields) == 0
-	selectFields := []telemetrytypes.TelemetryFieldKey{
-		{Name: SpanTimestampColumn, FieldContext: telemetrytypes.FieldContextSpan},
-		{Name: SpanTraceIDColumn, FieldContext: telemetrytypes.FieldContextSpan},
-		{Name: SpanSpanIDColumn, FieldContext: telemetrytypes.FieldContextSpan},
-	}
-	if wasEmpty {
-		// Select all intrinsic columns
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanTraceStateColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanParentSpanIDColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanFlagsColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanNameColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanKindColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanKindStringColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanDurationNanoColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanStatusCodeColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanStatusMessageColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanStatusCodeStringColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanEventsColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanLinksColumn, FieldContext: telemetrytypes.FieldContextSpan})
-
-		// select all calculated columns
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanResponseStatusCodeColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanExternalHTTPURLColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanHTTPURLColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanExternalHTTPMethodColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanHTTPMethodColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanHTTPHostColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanDBNameColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanDBOperationColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanHasErrorColumn, FieldContext: telemetrytypes.FieldContextSpan})
-		selectFields = append(selectFields, telemetrytypes.TelemetryFieldKey{Name: SpanIsRemoteColumn, FieldContext: telemetrytypes.FieldContextSpan})
-	} else {
-		for _, field := range query.SelectFields {
-			// TODO(tvats): If a user specifies attribute.timestamp in the select fields, this loop will basically ignore it, as we already added a field by default. This can be fixed once we close https://github.com/SigNoz/engineering-pod/issues/3693
-			if field.Name == SpanTimestampColumn || field.Name == SpanTraceIDColumn || field.Name == SpanSpanIDColumn {
-				continue
-			}
-			selectFields = append(selectFields, field)
-		}
-	}
-	query.SelectFields = selectFields
-	return query, wasEmpty
-}

pkg/telemetrytraces/stmt_builder_test.go

@@ -436,7 +436,7 @@ func TestStatementBuilderListQuery(t *testing.T) {
 				},
 			},
 			expected: qbtypes.Statement{
-				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, name AS `name`, multiIf(resource.`service.name` IS NOT NULL, resource.`service.name`::String, mapContains(resources_string, 'service.name'), resources_string['service.name'], NULL) AS `service.name`, duration_nano AS `duration_nano`, `attribute_number_cart$$items_count` AS `cart.items_count` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT name AS `name`, multiIf(resource.`service.name` IS NOT NULL, resource.`service.name`::String, mapContains(resources_string, 'service.name'), resources_string['service.name'], NULL) AS `service.name`, duration_nano AS `duration_nano`, `attribute_number_cart$$items_count` AS `cart.items_count`, timestamp AS `timestamp`, span_id AS `span_id`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -465,7 +465,7 @@ func TestStatementBuilderListQuery(t *testing.T) {
 				Limit: 10,
 			},
 			expected: qbtypes.Statement{
-				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, trace_state AS `trace_state`, parent_span_id AS `parent_span_id`, flags AS `flags`, name AS `name`, kind AS `kind`, kind_string AS `kind_string`, duration_nano AS `duration_nano`, status_code AS `status_code`, status_message AS `status_message`, status_code_string AS `status_code_string`, events AS `events`, links AS `links`, response_status_code AS `response_status_code`, external_http_url AS `external_http_url`, http_url AS `http_url`, external_http_method AS `external_http_method`, http_method AS `http_method`, http_host AS `http_host`, db_name AS `db_name`, db_operation AS `db_operation`, has_error AS `has_error`, is_remote AS `is_remote`, attributes_string, attributes_number, attributes_bool, resources_string FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? ORDER BY attributes_string['user.id'] AS `user.id` desc LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT duration_nano AS `duration_nano`, name AS `name`, response_status_code AS `response_status_code`, multiIf(resource.`service.name` IS NOT NULL, resource.`service.name`::String, mapContains(resources_string, 'service.name'), resources_string['service.name'], NULL) AS `service.name`, span_id AS `span_id`, timestamp AS `timestamp`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? ORDER BY attributes_string['user.id'] AS `user.id` desc LIMIT ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -509,7 +509,7 @@ func TestStatementBuilderListQuery(t *testing.T) {
 				Limit: 10,
 			},
 			expected: qbtypes.Statement{
-				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, name AS `name`, resource_string_service$$name AS `serviceName`, duration_nano AS `durationNano`, http_method AS `httpMethod`, response_status_code AS `responseStatusCode` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT name AS `name`, resource_string_service$$name AS `serviceName`, duration_nano AS `durationNano`, http_method AS `httpMethod`, response_status_code AS `responseStatusCode`, timestamp AS `timestamp`, span_id AS `span_id`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -553,7 +553,7 @@ func TestStatementBuilderListQuery(t *testing.T) {
 				Limit: 10,
 			},
 			expected: qbtypes.Statement{
-				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, name AS `name`, resource_string_service$$name AS `serviceName`, duration_nano AS `durationNano`, http_method AS `httpMethod`, multiIf(toString(`attribute_string_mixed$$materialization$$key`) != '', toString(`attribute_string_mixed$$materialization$$key`), toString(multiIf(resource.`mixed.materialization.key` IS NOT NULL, resource.`mixed.materialization.key`::String, mapContains(resources_string, 'mixed.materialization.key'), resources_string['mixed.materialization.key'], NULL)) != '', toString(multiIf(resource.`mixed.materialization.key` IS NOT NULL, resource.`mixed.materialization.key`::String, mapContains(resources_string, 'mixed.materialization.key'), resources_string['mixed.materialization.key'], NULL)), NULL) AS `mixed.materialization.key` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT name AS `name`, resource_string_service$$name AS `serviceName`, duration_nano AS `durationNano`, http_method AS `httpMethod`, multiIf(toString(`attribute_string_mixed$$materialization$$key`) != '', toString(`attribute_string_mixed$$materialization$$key`), toString(multiIf(resource.`mixed.materialization.key` IS NOT NULL, resource.`mixed.materialization.key`::String, mapContains(resources_string, 'mixed.materialization.key'), resources_string['mixed.materialization.key'], NULL)) != '', toString(multiIf(resource.`mixed.materialization.key` IS NOT NULL, resource.`mixed.materialization.key`::String, mapContains(resources_string, 'mixed.materialization.key'), resources_string['mixed.materialization.key'], NULL)), NULL) AS `mixed.materialization.key`, timestamp AS `timestamp`, span_id AS `span_id`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -598,7 +598,7 @@ func TestStatementBuilderListQuery(t *testing.T) {
 				Limit: 10,
 			},
 			expected: qbtypes.Statement{
-				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, name AS `name`, resource_string_service$$name AS `serviceName`, duration_nano AS `durationNano`, http_method AS `httpMethod`, `attribute_string_mixed$$materialization$$key` AS `mixed.materialization.key` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT name AS `name`, resource_string_service$$name AS `serviceName`, duration_nano AS `durationNano`, http_method AS `httpMethod`, `attribute_string_mixed$$materialization$$key` AS `mixed.materialization.key`, timestamp AS `timestamp`, span_id AS `span_id`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -706,7 +706,7 @@ func TestStatementBuilderListQueryWithCorruptData(t *testing.T) {
 				Limit:        10,
 			},
 			expected: qbtypes.Statement{
-				Query: "SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, trace_state AS `trace_state`, parent_span_id AS `parent_span_id`, flags AS `flags`, name AS `name`, kind AS `kind`, kind_string AS `kind_string`, duration_nano AS `duration_nano`, status_code AS `status_code`, status_message AS `status_message`, status_code_string AS `status_code_string`, events AS `events`, links AS `links`, response_status_code AS `response_status_code`, external_http_url AS `external_http_url`, http_url AS `http_url`, external_http_method AS `external_http_method`, http_method AS `http_method`, http_host AS `http_host`, db_name AS `db_name`, db_operation AS `db_operation`, has_error AS `has_error`, is_remote AS `is_remote`, attributes_string, attributes_number, attributes_bool, resources_string FROM signoz_traces.distributed_signoz_index_v3 WHERE timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "SELECT duration_nano AS `duration_nano`, name AS `name`, response_status_code AS `response_status_code`, multiIf(resource.`service.name` IS NOT NULL, resource.`service.name`::String, mapContains(resources_string, 'service.name'), resources_string['service.name'], NULL) AS `service.name`, span_id AS `span_id`, timestamp AS `timestamp`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
 				Args:  []any{"1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -739,7 +739,7 @@ func TestStatementBuilderListQueryWithCorruptData(t *testing.T) {
 				}},
 			},
 			expected: qbtypes.Statement{
-				Query: "SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, trace_state AS `trace_state`, parent_span_id AS `parent_span_id`, flags AS `flags`, name AS `name`, kind AS `kind`, kind_string AS `kind_string`, duration_nano AS `duration_nano`, status_code AS `status_code`, status_message AS `status_message`, status_code_string AS `status_code_string`, events AS `events`, links AS `links`, response_status_code AS `response_status_code`, external_http_url AS `external_http_url`, http_url AS `http_url`, external_http_method AS `external_http_method`, http_method AS `http_method`, http_host AS `http_host`, db_name AS `db_name`, db_operation AS `db_operation`, has_error AS `has_error`, is_remote AS `is_remote`, attributes_string, attributes_number, attributes_bool, resources_string FROM signoz_traces.distributed_signoz_index_v3 WHERE timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? ORDER BY timestamp AS `timestamp` asc LIMIT ?",
+				Query: "SELECT duration_nano AS `duration_nano`, name AS `name`, response_status_code AS `response_status_code`, multiIf(resource.`service.name` IS NOT NULL, resource.`service.name`::String, mapContains(resources_string, 'service.name'), resources_string['service.name'], NULL) AS `service.name`, span_id AS `span_id`, timestamp AS `timestamp`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? ORDER BY timestamp AS `timestamp` asc LIMIT ?",
 				Args:  []any{"1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,

pkg/types/telemetrytypes/field.go

@@ -37,6 +37,7 @@ type TelemetryFieldKey struct {
 	FieldContext  FieldContext  `json:"fieldContext,omitzero"`
 	FieldDataType FieldDataType `json:"fieldDataType,omitzero"`
 
+	JSONDataType *JSONDataType       `json:"-"`
 	JSONPlan     JSONAccessPlan      `json:"-"`
 	Indexes      []JSONDataTypeIndex `json:"-"`
 	Materialized bool                `json:"-"` // refers to promoted in case of body.... fields
@@ -79,11 +80,6 @@ func (f *TelemetryFieldKey) ArrayParentSelectors() []*FieldKeySelector {
 	return selectors
 }
 
-// GetJSONDataType derives the JSONDataType from FieldDataType.
-func (f *TelemetryFieldKey) GetJSONDataType() JSONDataType {
-	return MappingFieldDataTypeToJSONDataType[f.FieldDataType]
-}
-
 func (f TelemetryFieldKey) String() string {
 	var sb strings.Builder
 	fmt.Fprintf(&sb, "name=%s", f.Name)
@@ -96,6 +92,9 @@ func (f TelemetryFieldKey) String() string {
 	if f.Materialized {
 		sb.WriteString(",materialized=true")
 	}
+	if f.JSONDataType != nil {
+		fmt.Fprintf(&sb, ",jsondatatype=%s", f.JSONDataType.StringValue())
+	}
 	if len(f.Indexes) > 0 {
 		sb.WriteString(",indexes=[")
 		for i, index := range f.Indexes {
@@ -118,6 +117,7 @@ func (f TelemetryFieldKey) Text() string {
 func (f *TelemetryFieldKey) OverrideMetadataFrom(src *TelemetryFieldKey) {
 	f.FieldContext = src.FieldContext
 	f.FieldDataType = src.FieldDataType
+	f.JSONDataType = src.JSONDataType
 	f.Indexes = src.Indexes
 	f.Materialized = src.Materialized
 	f.JSONPlan = src.JSONPlan

pkg/types/telemetrytypes/field_datatype.go

@@ -31,7 +31,7 @@ var (
 	FieldDataTypeArrayInt64  = FieldDataType{valuer.NewString("[]int64")}
 	FieldDataTypeArrayNumber = FieldDataType{valuer.NewString("[]number")}
 
-	FieldDataTypeArrayJSON    = FieldDataType{valuer.NewString("[]json")}
+	FieldDataTypeArrayObject  = FieldDataType{valuer.NewString("[]object")}
 	FieldDataTypeArrayDynamic = FieldDataType{valuer.NewString("[]dynamic")}
 
 	// Map string representations to FieldDataType values
@@ -51,7 +51,7 @@ var (
 		"int8":   FieldDataTypeNumber,
 		"int16":  FieldDataTypeNumber,
 		"int32":  FieldDataTypeNumber,
-		"int64":  FieldDataTypeInt64,
+		"int64":  FieldDataTypeNumber,
 		"uint":   FieldDataTypeNumber,
 		"uint8":  FieldDataTypeNumber,
 		"uint16": FieldDataTypeNumber,
@@ -72,8 +72,6 @@ var (
 		"[]float64": FieldDataTypeArrayFloat64,
 		"[]number":  FieldDataTypeArrayNumber,
 		"[]bool":    FieldDataTypeArrayBool,
-		"[]json":    FieldDataTypeArrayJSON,
-		"[]dynamic": FieldDataTypeArrayDynamic,
 
 		// c-style array types
 		"string[]":  FieldDataTypeArrayString,
@@ -81,8 +79,6 @@ var (
 		"float64[]": FieldDataTypeArrayFloat64,
 		"number[]":  FieldDataTypeArrayNumber,
 		"bool[]":    FieldDataTypeArrayBool,
-		"json[]":    FieldDataTypeArrayJSON,
-		"dynamic[]": FieldDataTypeArrayDynamic,
 	}
 
 	fieldDataTypeToCHDataType = map[FieldDataType]string{

pkg/types/telemetrytypes/json_access_plan.go

@@ -19,8 +19,7 @@ var (
 	BranchJSON    = JSONAccessBranchType{valuer.NewString("json")}
 	BranchDynamic = JSONAccessBranchType{valuer.NewString("dynamic")}
 
-	CodePlanIndexOutOfBounds     = errors.MustNewCode("plan_index_out_of_bounds")
-	CodePlanFieldDataTypeMissing = errors.MustNewCode("field_data_type_missing")
+	CodePlanIndexOutOfBounds = errors.MustNewCode("plan_index_out_of_bounds")
 )
 
 type JSONColumnMetadata struct {
@@ -43,6 +42,9 @@ type JSONAccessNode struct {
 	IsTerminal bool
 	isRoot     bool // marked true for only body_v2 and body_promoted
 
+	// Precomputed type information (single source of truth)
+	AvailableTypes []JSONDataType
+
 	// Array type branches (Array(JSON) vs Array(Dynamic))
 	Branches map[JSONAccessBranchType]*JSONAccessNode
 
@@ -104,7 +106,7 @@ type planBuilder struct {
 	paths      []string // cumulative paths for type cache lookups
 	segments   []string // individual path segments for node names
 	isPromoted bool
-	typeCache  map[string][]FieldDataType
+	typeCache  map[string][]JSONDataType
 }
 
 // buildPlan recursively builds the path plan tree.
@@ -136,41 +138,34 @@ func (pb *planBuilder) buildPlan(index int, parent *JSONAccessNode, isDynArrChil
 		}
 	}
 
+	// Use cached types from the batched metadata query
+	types, ok := pb.typeCache[pathSoFar]
+	if !ok {
+		return nil, errors.NewInternalf(errors.CodeInvalidInput, "types missing for path %s", pathSoFar)
+	}
+
 	// Create node for this path segment
 	node := &JSONAccessNode{
 		Name:            segmentName,
 		IsTerminal:      isTerminal,
+		AvailableTypes:  types,
 		Branches:        make(map[JSONAccessBranchType]*JSONAccessNode),
 		Parent:          parent,
 		MaxDynamicTypes: maxTypes,
 		MaxDynamicPaths: maxPaths,
 	}
 
+	hasJSON := slices.Contains(node.AvailableTypes, ArrayJSON)
+	hasDynamic := slices.Contains(node.AvailableTypes, ArrayDynamic)
+
 	// Configure terminal if this is the last part
 	if isTerminal {
-		// fielddatatype must not be unspecified else expression can not be generated
-		if pb.key.FieldDataType == FieldDataTypeUnspecified {
-			return nil, errors.NewInternalf(CodePlanFieldDataTypeMissing, "field data type is missing for path %s", pathSoFar)
-		}
-
 		node.TerminalConfig = &TerminalConfig{
 			Key:      pb.key,
-			ElemType: pb.key.GetJSONDataType(),
+			ElemType: *pb.key.JSONDataType,
 		}
 	} else {
 		var err error
-		// Use cached types from the batched metadata query
-		types, ok := pb.typeCache[pathSoFar]
-		if !ok {
-			return nil, errors.NewInternalf(errors.CodeInvalidInput, "types missing for path %s", pathSoFar)
-		}
-
-		hasJSON := slices.Contains(types, FieldDataTypeArrayJSON)
-		hasDynamic := slices.Contains(types, FieldDataTypeArrayDynamic)
-		if !hasJSON && !hasDynamic {
-			return nil, errors.NewInternalf(CodePlanFieldDataTypeMissing, "array data type missing for path %s", pathSoFar)
-		}
-
 		if hasJSON {
 			node.Branches[BranchJSON], err = pb.buildPlan(index+1, node, false)
 			if err != nil {
@@ -190,7 +185,7 @@ func (pb *planBuilder) buildPlan(index int, parent *JSONAccessNode, isDynArrChil
 
 // buildJSONAccessPlan builds a tree structure representing the complete JSON path traversal
 // that precomputes all possible branches and their types.
-func (key *TelemetryFieldKey) SetJSONAccessPlan(columnInfo JSONColumnMetadata, typeCache map[string][]FieldDataType,
+func (key *TelemetryFieldKey) SetJSONAccessPlan(columnInfo JSONColumnMetadata, typeCache map[string][]JSONDataType,
 ) error {
 	// if path is empty, return nil
 	if key.Name == "" {

pkg/types/telemetrytypes/json_access_plan_test.go

@@ -19,11 +19,11 @@ const (
 // ============================================================================
 
 // makeKey creates a TelemetryFieldKey for testing.
-func makeKey(name string, dataType FieldDataType, materialized bool) *TelemetryFieldKey {
+func makeKey(name string, dataType JSONDataType, materialized bool) *TelemetryFieldKey {
 	return &TelemetryFieldKey{
-		Name:          name,
-		FieldDataType: dataType,
-		Materialized:  materialized,
+		Name:         name,
+		JSONDataType: &dataType,
+		Materialized: materialized,
 	}
 }
 
@@ -41,6 +41,7 @@ type jsonAccessTestNode struct {
 	MaxDynamicTypes int                            `yaml:"maxDynamicTypes,omitempty"`
 	MaxDynamicPaths int                            `yaml:"maxDynamicPaths,omitempty"`
 	ElemType        string                         `yaml:"elemType,omitempty"`
+	AvailableTypes  []string                       `yaml:"availableTypes,omitempty"`
 	Branches        map[string]*jsonAccessTestNode `yaml:"branches,omitempty"`
 }
 
@@ -64,6 +65,14 @@ func toTestNode(n *JSONAccessNode) *jsonAccessTestNode {
 		out.Column = n.Parent.Name
 	}
 
+	// AvailableTypes as strings (using StringValue for stable representation)
+	if len(n.AvailableTypes) > 0 {
+		out.AvailableTypes = make([]string, 0, len(n.AvailableTypes))
+		for _, t := range n.AvailableTypes {
+			out.AvailableTypes = append(out.AvailableTypes, t.StringValue())
+		}
+	}
+
 	// Terminal config
 	if n.TerminalConfig != nil {
 		out.ElemType = n.TerminalConfig.ElemType.StringValue()
@@ -233,10 +242,12 @@ func TestPlanJSON_BasicStructure(t *testing.T) {
 	}{
 		{
 			name: "Simple path not promoted",
-			key:  makeKey("user.name", FieldDataTypeString, false),
+			key:  makeKey("user.name", String, false),
 			expectedYAML: fmt.Sprintf(`
 - name: user.name
   column: %s
+  availableTypes:
+    - String
   maxDynamicTypes: 16
   isTerminal: true
   elemType: String
@@ -244,15 +255,19 @@ func TestPlanJSON_BasicStructure(t *testing.T) {
 		},
 		{
 			name: "Simple path promoted",
-			key:  makeKey("user.name", FieldDataTypeString, true),
+			key:  makeKey("user.name", String, true),
 			expectedYAML: fmt.Sprintf(`
 - name: user.name
   column: %s
+  availableTypes:
+    - String
   maxDynamicTypes: 16
   isTerminal: true
   elemType: String
 - name: user.name
   column: %s
+  availableTypes:
+    - String
   maxDynamicTypes: 16
   maxDynamicPaths: 256
   isTerminal: true
@@ -261,7 +276,7 @@ func TestPlanJSON_BasicStructure(t *testing.T) {
 		},
 		{
 			name:         "Empty path returns error",
-			key:          makeKey("", FieldDataTypeString, false),
+			key:          makeKey("", String, false),
 			expectErr:    true,
 			expectedYAML: "",
 		},
@@ -299,10 +314,14 @@ func TestPlanJSON_ArrayPaths(t *testing.T) {
 			expectedYAML: fmt.Sprintf(`
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: name
+      availableTypes:
+        - String
       maxDynamicTypes: 8
       isTerminal: true
       elemType: String
@@ -314,19 +333,28 @@ func TestPlanJSON_ArrayPaths(t *testing.T) {
 			expectedYAML: fmt.Sprintf(`
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: awards
+      availableTypes:
+        - Array(Dynamic)
+        - Array(JSON)
       maxDynamicTypes: 8
       branches:
         json:
           name: type
+          availableTypes:
+            - String
           maxDynamicTypes: 4
           isTerminal: true
           elemType: String
         dynamic:
           name: type
+          availableTypes:
+            - String
           maxDynamicTypes: 16
           maxDynamicPaths: 256
           isTerminal: true
@@ -339,29 +367,43 @@ func TestPlanJSON_ArrayPaths(t *testing.T) {
 			expectedYAML: fmt.Sprintf(`
 - name: interests
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: entities
+      availableTypes:
+        - Array(JSON)
       maxDynamicTypes: 8
       branches:
         json:
           name: reviews
+          availableTypes:
+            - Array(JSON)
           maxDynamicTypes: 4
           branches:
             json:
               name: entries
+              availableTypes:
+                - Array(JSON)
               maxDynamicTypes: 2
               branches:
                 json:
                   name: metadata
+                  availableTypes:
+                    - Array(JSON)
                   maxDynamicTypes: 1
                   branches:
                     json:
                       name: positions
+                      availableTypes:
+                        - Array(JSON)
                       branches:
                         json:
                           name: name
+                          availableTypes:
+                            - String
                           isTerminal: true
                           elemType: String
 `, bodyV2Column),
@@ -372,10 +414,14 @@ func TestPlanJSON_ArrayPaths(t *testing.T) {
 			expectedYAML: fmt.Sprintf(`
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: name
+      availableTypes:
+        - String
       maxDynamicTypes: 8
       isTerminal: true
       elemType: String
@@ -385,7 +431,7 @@ func TestPlanJSON_ArrayPaths(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			key := makeKey(tt.path, FieldDataTypeString, false)
+			key := makeKey(tt.path, String, false)
 			err := key.SetJSONAccessPlan(JSONColumnMetadata{
 				BaseColumn:     bodyV2Column,
 				PromotedColumn: bodyPromotedColumn,
@@ -404,7 +450,7 @@ func TestPlanJSON_PromotedVsNonPromoted(t *testing.T) {
 	path := "education[].awards[].type"
 
 	t.Run("Non-promoted plan", func(t *testing.T) {
-		key := makeKey(path, FieldDataTypeString, false)
+		key := makeKey(path, String, false)
 		err := key.SetJSONAccessPlan(JSONColumnMetadata{
 			BaseColumn:     bodyV2Column,
 			PromotedColumn: bodyPromotedColumn,
@@ -415,19 +461,28 @@ func TestPlanJSON_PromotedVsNonPromoted(t *testing.T) {
 		expectedYAML := fmt.Sprintf(`
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: awards
+      availableTypes:
+        - Array(Dynamic)
+        - Array(JSON)
       maxDynamicTypes: 8
       branches:
         json:
           name: type
+          availableTypes:
+            - String
           maxDynamicTypes: 4
           isTerminal: true
           elemType: String
         dynamic:
           name: type
+          availableTypes:
+            - String
           maxDynamicTypes: 16
           maxDynamicPaths: 256
           isTerminal: true
@@ -438,7 +493,7 @@ func TestPlanJSON_PromotedVsNonPromoted(t *testing.T) {
 	})
 
 	t.Run("Promoted plan", func(t *testing.T) {
-		key := makeKey(path, FieldDataTypeString, true)
+		key := makeKey(path, String, true)
 		err := key.SetJSONAccessPlan(JSONColumnMetadata{
 			BaseColumn:     bodyV2Column,
 			PromotedColumn: bodyPromotedColumn,
@@ -449,41 +504,59 @@ func TestPlanJSON_PromotedVsNonPromoted(t *testing.T) {
 		expectedYAML := fmt.Sprintf(`
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: awards
+      availableTypes:
+        - Array(Dynamic)
+        - Array(JSON)
       maxDynamicTypes: 8
       branches:
         json:
           name: type
+          availableTypes:
+            - String
           maxDynamicTypes: 4
           isTerminal: true
           elemType: String
         dynamic:
           name: type
+          availableTypes:
+            - String
           maxDynamicTypes: 16
           maxDynamicPaths: 256
           isTerminal: true
           elemType: String
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   maxDynamicPaths: 256
   branches:
     json:
       name: awards
+      availableTypes:
+        - Array(Dynamic)
+        - Array(JSON)
       maxDynamicTypes: 8
       maxDynamicPaths: 64
       branches:
         json:
           name: type
+          availableTypes:
+            - String
           maxDynamicTypes: 4
           maxDynamicPaths: 16
           isTerminal: true
           elemType: String
         dynamic:
           name: type
+          availableTypes:
+            - String
           maxDynamicTypes: 16
           maxDynamicPaths: 256
           isTerminal: true
@@ -505,7 +578,7 @@ func TestPlanJSON_EdgeCases(t *testing.T) {
 	}{
 		{
 			name:      "Path with no available types",
-			path:      "unknown[].path",
+			path:      "unknown.path",
 			expectErr: true,
 		},
 		{
@@ -514,29 +587,43 @@ func TestPlanJSON_EdgeCases(t *testing.T) {
 			expectedYAML: fmt.Sprintf(`
 - name: interests
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: entities
+      availableTypes:
+        - Array(JSON)
       maxDynamicTypes: 8
       branches:
         json:
           name: reviews
+          availableTypes:
+            - Array(JSON)
           maxDynamicTypes: 4
           branches:
             json:
               name: entries
+              availableTypes:
+                - Array(JSON)
               maxDynamicTypes: 2
               branches:
                 json:
                   name: metadata
+                  availableTypes:
+                    - Array(JSON)
                   maxDynamicTypes: 1
                   branches:
                     json:
                       name: positions
+                      availableTypes:
+                        - Array(JSON)
                       branches:
                         json:
                           name: name
+                          availableTypes:
+                            - String
                           isTerminal: true
                           elemType: String
 `, bodyV2Column),
@@ -547,10 +634,15 @@ func TestPlanJSON_EdgeCases(t *testing.T) {
 			expectedYAML: fmt.Sprintf(`
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: type
+      availableTypes:
+        - String
+        - Int64
       maxDynamicTypes: 8
       isTerminal: true
       elemType: String
@@ -562,6 +654,8 @@ func TestPlanJSON_EdgeCases(t *testing.T) {
 			expectedYAML: fmt.Sprintf(`
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   isTerminal: true
   elemType: Array(JSON)
@@ -572,12 +666,12 @@ func TestPlanJSON_EdgeCases(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			// Choose key type based on path; operator does not affect the tree shape asserted here.
-			keyType := FieldDataTypeString
+			keyType := String
 			switch tt.path {
 			case "education":
-				keyType = FieldDataTypeArrayJSON
+				keyType = ArrayJSON
 			case "education[].type":
-				keyType = FieldDataTypeString
+				keyType = String
 			}
 			key := makeKey(tt.path, keyType, false)
 			err := key.SetJSONAccessPlan(JSONColumnMetadata{
@@ -598,7 +692,7 @@ func TestPlanJSON_EdgeCases(t *testing.T) {
 func TestPlanJSON_TreeStructure(t *testing.T) {
 	types, _ := TestJSONTypeSet()
 	path := "education[].awards[].participated[].team[].branch"
-	key := makeKey(path, FieldDataTypeString, false)
+	key := makeKey(path, String, false)
 	err := key.SetJSONAccessPlan(JSONColumnMetadata{
 		BaseColumn:     bodyV2Column,
 		PromotedColumn: bodyPromotedColumn,
@@ -609,59 +703,86 @@ func TestPlanJSON_TreeStructure(t *testing.T) {
 	expectedYAML := fmt.Sprintf(`
 - name: education
   column: %s
+  availableTypes:
+    - Array(JSON)
   maxDynamicTypes: 16
   branches:
     json:
       name: awards
+      availableTypes:
+        - Array(Dynamic)
+        - Array(JSON)
       maxDynamicTypes: 8
       branches:
         json:
           name: participated
+          availableTypes:
+            - Array(Dynamic)
+            - Array(JSON)
           maxDynamicTypes: 4
           branches:
             json:
               name: team
+              availableTypes:
+                - Array(JSON)
               maxDynamicTypes: 2
               branches:
                 json:
                   name: branch
+                  availableTypes:
+                    - String
                   maxDynamicTypes: 1
                   isTerminal: true
                   elemType: String
             dynamic:
               name: team
+              availableTypes:
+                - Array(JSON)
               maxDynamicTypes: 16
               maxDynamicPaths: 256
               branches:
                 json:
                   name: branch
+                  availableTypes:
+                    - String
                   maxDynamicTypes: 8
                   maxDynamicPaths: 64
                   isTerminal: true
                   elemType: String
         dynamic:
           name: participated
+          availableTypes:
+            - Array(Dynamic)
+            - Array(JSON)
           maxDynamicTypes: 16
           maxDynamicPaths: 256
           branches:
             json:
               name: team
+              availableTypes:
+                - Array(JSON)
               maxDynamicTypes: 8
               maxDynamicPaths: 64
               branches:
                 json:
                   name: branch
+                  availableTypes:
+                    - String
                   maxDynamicTypes: 4
                   maxDynamicPaths: 16
                   isTerminal: true
                   elemType: String
             dynamic:
               name: team
+              availableTypes:
+                - Array(JSON)
               maxDynamicTypes: 16
               maxDynamicPaths: 256
               branches:
                 json:
                   name: branch
+                  availableTypes:
+                    - String
                   maxDynamicTypes: 8
                   maxDynamicPaths: 64
                   isTerminal: true

pkg/types/telemetrytypes/json_datatype.go

@@ -46,6 +46,14 @@ var MappingStringToJSONDataType = map[string]JSONDataType{
 	"Array(JSON)":              ArrayJSON,
 }
 
+var ScalerTypeToArrayType = map[JSONDataType]JSONDataType{
+	String:  ArrayString,
+	Int64:   ArrayInt64,
+	Float64: ArrayFloat64,
+	Bool:    ArrayBool,
+	Dynamic: ArrayDynamic,
+}
+
 var MappingFieldDataTypeToJSONDataType = map[FieldDataType]JSONDataType{
 	FieldDataTypeString:       String,
 	FieldDataTypeInt64:        Int64,
@@ -55,8 +63,18 @@ var MappingFieldDataTypeToJSONDataType = map[FieldDataType]JSONDataType{
 	FieldDataTypeArrayString:  ArrayString,
 	FieldDataTypeArrayInt64:   ArrayInt64,
 	FieldDataTypeArrayFloat64: ArrayFloat64,
-	FieldDataTypeArrayNumber:  ArrayFloat64,
 	FieldDataTypeArrayBool:    ArrayBool,
-	FieldDataTypeArrayDynamic: ArrayDynamic,
-	FieldDataTypeArrayJSON:    ArrayJSON,
+}
+
+var MappingJSONDataTypeToFieldDataType = map[JSONDataType]FieldDataType{
+	String:       FieldDataTypeString,
+	Int64:        FieldDataTypeInt64,
+	Float64:      FieldDataTypeFloat64,
+	Bool:         FieldDataTypeBool,
+	ArrayString:  FieldDataTypeArrayString,
+	ArrayInt64:   FieldDataTypeArrayInt64,
+	ArrayFloat64: FieldDataTypeArrayFloat64,
+	ArrayBool:    FieldDataTypeArrayBool,
+	ArrayDynamic: FieldDataTypeArrayDynamic,
+	ArrayJSON:    FieldDataTypeArrayObject,
 }

pkg/types/telemetrytypes/test_data.go

@@ -4,69 +4,69 @@ package telemetrytypes
 // Test JSON Type Set Data Setup
 // ============================================================================
 
-// TestJSONTypeSet returns a map of path->field data types for testing.
+// TestJSONTypeSet returns a map of path->types for testing.
 // This represents the type information available in the test JSON structure.
-func TestJSONTypeSet() (map[string][]FieldDataType, MetadataStore) {
-	types := map[string][]FieldDataType{
+func TestJSONTypeSet() (map[string][]JSONDataType, MetadataStore) {
+	types := map[string][]JSONDataType{
 
 		// ── user (primitives) ─────────────────────────────────────────────
-		"user.name":        {FieldDataTypeString},
-		"user.permissions": {FieldDataTypeArrayString},
-		"user.age":         {FieldDataTypeInt64, FieldDataTypeString}, // Int64/String ambiguity
-		"user.height":      {FieldDataTypeFloat64},
-		"user.active":      {FieldDataTypeBool}, // Bool — not IndexSupported
+		"user.name":        {String},
+		"user.permissions": {ArrayString},
+		"user.age":         {Int64, String}, // Int64/String ambiguity
+		"user.height":      {Float64},
+		"user.active":      {Bool}, // Bool — not IndexSupported
 
 		// Deeper non-array nesting (a.b.c — no array hops)
-		"user.address.zip": {FieldDataTypeInt64},
+		"user.address.zip": {Int64},
 
 		// ── education[] ───────────────────────────────────────────────────
 		// Pattern: x[].y
-		"education":              {FieldDataTypeArrayJSON},
-		"education[].name":       {FieldDataTypeString},
-		"education[].type":       {FieldDataTypeString, FieldDataTypeInt64},
-		"education[].year":       {FieldDataTypeInt64},
-		"education[].scores":     {FieldDataTypeArrayInt64},
-		"education[].parameters": {FieldDataTypeArrayFloat64, FieldDataTypeArrayDynamic},
+		"education":              {ArrayJSON},
+		"education[].name":       {String},
+		"education[].type":       {String, Int64},
+		"education[].year":       {Int64},
+		"education[].scores":     {ArrayInt64},
+		"education[].parameters": {ArrayFloat64, ArrayDynamic},
 
 		// Pattern: x[].y[]
-		"education[].awards": {FieldDataTypeArrayDynamic, FieldDataTypeArrayJSON},
+		"education[].awards": {ArrayDynamic, ArrayJSON},
 
 		// Pattern: x[].y[].z
-		"education[].awards[].name":     {FieldDataTypeString},
-		"education[].awards[].type":     {FieldDataTypeString},
-		"education[].awards[].semester": {FieldDataTypeInt64},
+		"education[].awards[].name":     {String},
+		"education[].awards[].type":     {String},
+		"education[].awards[].semester": {Int64},
 
 		// Pattern: x[].y[].z[]
-		"education[].awards[].participated": {FieldDataTypeArrayDynamic, FieldDataTypeArrayJSON},
+		"education[].awards[].participated": {ArrayDynamic, ArrayJSON},
 
 		// Pattern: x[].y[].z[].w
-		"education[].awards[].participated[].members": {FieldDataTypeArrayString},
+		"education[].awards[].participated[].members": {ArrayString},
 
 		// Pattern: x[].y[].z[].w[]
-		"education[].awards[].participated[].team": {FieldDataTypeArrayJSON},
+		"education[].awards[].participated[].team": {ArrayJSON},
 
 		// Pattern: x[].y[].z[].w[].v
-		"education[].awards[].participated[].team[].branch": {FieldDataTypeString},
+		"education[].awards[].participated[].team[].branch": {String},
 
 		// ── interests[] ───────────────────────────────────────────────────
-		"interests":                                                                 {FieldDataTypeArrayJSON},
-		"interests[].entities":                                                      {FieldDataTypeArrayJSON},
-		"interests[].entities[].product_codes":                            {FieldDataTypeArrayDynamic},
-		"interests[].entities[].reviews":                                            {FieldDataTypeArrayJSON},
-		"interests[].entities[].reviews[].entries":                                  {FieldDataTypeArrayJSON},
-		"interests[].entities[].reviews[].entries[].metadata":                       {FieldDataTypeArrayJSON},
-		"interests[].entities[].reviews[].entries[].metadata[].positions":           {FieldDataTypeArrayJSON},
-		"interests[].entities[].reviews[].entries[].metadata[].positions[].name":    {FieldDataTypeString},
-		"interests[].entities[].reviews[].entries[].metadata[].positions[].ratings": {FieldDataTypeArrayInt64, FieldDataTypeArrayString},
-		"http-events":                     {FieldDataTypeArrayJSON},
-		"http-events[].request-info.host": {FieldDataTypeString},
+		"interests":                                                                 {ArrayJSON},
+		"interests[].entities":                                                      {ArrayJSON},
+		"interests[].entities[].reviews":                                            {ArrayJSON},
+		"interests[].entities[].reviews[].entries":                                  {ArrayJSON},
+		"interests[].entities[].reviews[].entries[].metadata":                       {ArrayJSON},
+		"interests[].entities[].reviews[].entries[].metadata[].positions":           {ArrayJSON},
+		"interests[].entities[].reviews[].entries[].metadata[].positions[].name":    {String},
+		"interests[].entities[].reviews[].entries[].metadata[].positions[].ratings": {ArrayInt64, ArrayString},
+		"http-events":                     {ArrayJSON},
+		"http-events[].request-info.host": {String},
+		"ids":                             {ArrayDynamic},
 
 		// ── top-level primitives ──────────────────────────────────────────
-		"message":     {FieldDataTypeString},
-		"http-status": {FieldDataTypeInt64, FieldDataTypeString}, // hyphen in root key, ambiguous
+		"message":     {String},
+		"http-status": {Int64, String}, // hyphen in root key, ambiguous
 
 		// ── top-level nested objects (no array hops) ───────────────────────
-		"response.time-taken": {FieldDataTypeFloat64}, // hyphen inside nested key
+		"response.time-taken": {Float64}, // hyphen inside nested key
 	}
 
 	return types, nil

tests/integration/src/querier/04_traces.py

@@ -490,24 +490,25 @@ def test_traces_list(
                     "name": "A",
                     "signal": "traces",
                     "disabled": False,
-                    "selectFields": [
-                        {"name": "span_id"},
-                        {"name": "span.timestamp"},
-                        {"name": "trace_id"},
-                    ],
                     "order": [{"key": {"name": "timestamp"}, "direction": "desc"}],
                     "limit": 1,
                 },
             },
             HTTPStatus.OK,
             lambda x: [
+                x[3].duration_nano,
+                x[3].name,
+                x[3].response_status_code,
+                x[3].service_name,
                 x[3].span_id,
                 format_timestamp(x[3].timestamp),
                 x[3].trace_id,
             ],  # type: Callable[[List[Traces]], List[Any]]
         ),
         # Case 2: order by attribute timestamp field which is there in attributes as well
-        # attribute.timestamp gets adjusted to span.timestamp
+        # This should break but it doesn't because attribute.timestamp gets adjusted to timestamp
+        # because of default trace.timestamp gets added by default and bug in field mapper picks
+        # instrinsic field
         pytest.param(
             {
                 "type": "builder_query",
@@ -515,11 +516,6 @@ def test_traces_list(
                     "name": "A",
                     "signal": "traces",
                     "disabled": False,
-                    "selectFields": [
-                        {"name": "span_id"},
-                        {"name": "span.timestamp"},
-                        {"name": "trace_id"},
-                    ],
                     "order": [
                         {"key": {"name": "attribute.timestamp"}, "direction": "desc"}
                     ],
@@ -528,6 +524,10 @@ def test_traces_list(
             },
             HTTPStatus.OK,
             lambda x: [
+                x[3].duration_nano,
+                x[3].name,
+                x[3].response_status_code,
+                x[3].service_name,
                 x[3].span_id,
                 format_timestamp(x[3].timestamp),
                 x[3].trace_id,
@@ -553,7 +553,7 @@ def test_traces_list(
             ],  # type: Callable[[List[Traces]], List[Any]]
         ),
         # Case 4: select attribute.timestamp with empty order by
-        # This returns the one span which has attribute.timestamp
+        # This doesn't return any data because of where_clause using aliased timestamp
         pytest.param(
             {
                 "type": "builder_query",
@@ -567,11 +567,7 @@ def test_traces_list(
                 },
             },
             HTTPStatus.OK,
-            lambda x: [
-                x[0].span_id,
-                format_timestamp(x[0].timestamp),
-                x[0].trace_id,
-            ],  # type: Callable[[List[Traces]], List[Any]]
+            lambda x: [],  # type: Callable[[List[Traces]], List[Any]]
         ),
         # Case 5: select timestamp with timestamp order by
         pytest.param(
@@ -710,112 +706,6 @@ def test_traces_list_with_corrupt_data(
                 assert data[key] == value
 
 
-@pytest.mark.parametrize(
-    "select_fields,status_code,expected_keys",
-    [
-        pytest.param(
-            [],
-            HTTPStatus.OK,
-            [
-                # all intrinsic column
-                "timestamp",
-                "trace_id",
-                "span_id",
-                "trace_state",
-                "parent_span_id",
-                "flags",
-                "name",
-                "kind",
-                "kind_string",
-                "duration_nano",
-                "status_code",
-                "status_message",
-                "status_code_string",
-                "events",
-                "links",
-                # all calculated columns
-                "response_status_code",
-                "external_http_url",
-                "http_url",
-                "external_http_method",
-                "http_method",
-                "http_host",
-                "db_name",
-                "db_operation",
-                "has_error",
-                "is_remote",
-                # all contextual columns (merged in response layer)
-                "attributes",
-                "resource",
-            ],
-        ),
-        pytest.param(
-            [
-                {"name": "service.name"},
-            ],
-            HTTPStatus.OK,
-            ["timestamp", "trace_id", "span_id", "service.name"],
-        ),
-    ],
-)
-def test_traces_list_with_select_fields(
-    signoz: types.SigNoz,
-    create_user_admin: None,  # pylint: disable=unused-argument
-    get_token: Callable[[str, str], str],
-    insert_traces: Callable[[List[Traces]], None],
-    select_fields: List[dict],
-    status_code: HTTPStatus,
-    expected_keys: List[str],
-) -> None:
-    """
-    Setup:
-    Insert 4 traces with different attributes.
-
-    Tests:
-    1. Empty select fields should return all the fields.
-    2. Non empty select field should return the select field along with timestamp, trace_id and span_id.
-    """
-    traces = (
-        generate_traces_with_corrupt_metadata()
-    )  # using this as the data doesn't matter
-
-    insert_traces(traces)
-
-    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
-
-    payload = {
-        "type": "builder_query",
-        "spec": {
-            "name": "A",
-            "signal": "traces",
-            "selectFields": select_fields,
-            "order": [{"key": {"name": "timestamp"}, "direction": "desc"}],
-            "limit": 1,
-        },
-    }
-
-    response = make_query_request(
-        signoz,
-        token,
-        start_ms=int(
-            (datetime.now(tz=timezone.utc) - timedelta(minutes=5)).timestamp() * 1000
-        ),
-        end_ms=int(datetime.now(tz=timezone.utc).timestamp() * 1000),
-        request_type="raw",
-        queries=[payload],
-    )
-    assert response.status_code == status_code
-
-    if response.status_code == HTTPStatus.OK:
-        data = response.json()
-        assert len(data["data"]["data"]["results"][0]["rows"][0]["data"].keys()) == len(
-            expected_keys
-        )
-        assert set(data["data"]["data"]["results"][0]["rows"][0]["data"].keys()) == set(
-            expected_keys
-        )
-
-
 @pytest.mark.parametrize(
     "order_by,aggregation_alias,expected_status",
     [