fix: address comments

Co-authored-by: Tushar Vats <tushar@signoz.io>

deploy/docker-swarm/docker-compose.ha.yaml

@@ -190,7 +190,7 @@ services:
       # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
   signoz:
     !!merge <<: *db-depend
-    image: signoz/signoz:v0.121.0
+    image: signoz/signoz:v0.120.0
     ports:
       - "8080:8080" # signoz port
     #   - "6060:6060"     # pprof port

deploy/docker-swarm/docker-compose.yaml

@@ -117,7 +117,7 @@ services:
       # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
   signoz:
     !!merge <<: *db-depend
-    image: signoz/signoz:v0.121.0
+    image: signoz/signoz:v0.120.0
     ports:
       - "8080:8080" # signoz port
     volumes:

deploy/docker/docker-compose.ha.yaml

@@ -181,7 +181,7 @@ services:
       # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
   signoz:
     !!merge <<: *db-depend
-    image: signoz/signoz:${VERSION:-v0.121.0}
+    image: signoz/signoz:${VERSION:-v0.120.0}
     container_name: signoz
     ports:
       - "8080:8080" # signoz port

deploy/docker/docker-compose.yaml

@@ -109,7 +109,7 @@ services:
       # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
   signoz:
     !!merge <<: *db-depend
-    image: signoz/signoz:${VERSION:-v0.121.0}
+    image: signoz/signoz:${VERSION:-v0.120.0}
     container_name: signoz
     ports:
       - "8080:8080" # signoz port

frontend/src/container/MCPServerSettings/AuthCard/AuthCard.test.tsx

@@ -7,7 +7,6 @@ const mockOnCreateServiceAccount = jest.fn();
 
 const defaultProps = {
 	instanceUrl: 'http://localhost',
-	isCloudUser: false,
 	onCopyInstanceUrl: mockOnCopyInstanceUrl,
 	onCreateServiceAccount: mockOnCreateServiceAccount,
 };
@@ -68,75 +67,4 @@ describe('AuthCard', () => {
 
 		expect(mockOnCreateServiceAccount).toHaveBeenCalledTimes(1);
 	});
-
-	describe('cloud non-admin: instance URL unavailable', () => {
-		const cloudNonAdminProps = { ...defaultProps, isCloudUser: true };
-
-		it('shows an info banner instead of the URL', () => {
-			render(<AuthCard {...cloudNonAdminProps} isAdmin={false} />);
-
-			expect(
-				screen.getByTestId('mcp-instance-url-unavailable'),
-			).toBeInTheDocument();
-			expect(screen.queryByTestId('mcp-instance-url')).not.toBeInTheDocument();
-		});
-
-		it('does not render the copy button', () => {
-			render(<AuthCard {...cloudNonAdminProps} isAdmin={false} />);
-
-			expect(
-				screen.queryByRole('button', { name: 'Copy SigNoz instance URL' }),
-			).not.toBeInTheDocument();
-		});
-
-		it('shows URL normally for cloud admin', () => {
-			render(<AuthCard {...cloudNonAdminProps} isAdmin />);
-
-			expect(screen.getByTestId('mcp-instance-url')).toHaveTextContent(
-				'http://localhost',
-			);
-			expect(
-				screen.queryByTestId('mcp-instance-url-unavailable'),
-			).not.toBeInTheDocument();
-		});
-
-		it('shows URL normally for self-hosted non-admin (browser URL is correct)', () => {
-			render(<AuthCard {...defaultProps} isAdmin={false} />);
-
-			expect(screen.getByTestId('mcp-instance-url')).toHaveTextContent(
-				'http://localhost',
-			);
-			expect(
-				screen.queryByTestId('mcp-instance-url-unavailable'),
-			).not.toBeInTheDocument();
-		});
-	});
-
-	describe('isLoadingInstanceUrl', () => {
-		it('shows a skeleton and hides the URL while loading', () => {
-			render(<AuthCard {...defaultProps} isAdmin isLoadingInstanceUrl />);
-
-			expect(screen.queryByTestId('mcp-instance-url')).not.toBeInTheDocument();
-			expect(document.querySelector('.ant-skeleton-input')).toBeInTheDocument();
-		});
-
-		it('does not render the copy button while loading', () => {
-			render(<AuthCard {...defaultProps} isAdmin isLoadingInstanceUrl />);
-
-			expect(
-				screen.queryByRole('button', { name: 'Copy SigNoz instance URL' }),
-			).not.toBeInTheDocument();
-		});
-
-		it('shows the URL and copy button once loading is done', () => {
-			render(<AuthCard {...defaultProps} isAdmin isLoadingInstanceUrl={false} />);
-
-			expect(screen.getByTestId('mcp-instance-url')).toHaveTextContent(
-				'http://localhost',
-			);
-			expect(
-				screen.getByRole('button', { name: 'Copy SigNoz instance URL' }),
-			).toBeInTheDocument();
-		});
-	});
 });

frontend/src/container/MCPServerSettings/AuthCard/AuthCard.tsx

@@ -1,4 +1,3 @@
-import { Skeleton } from 'antd';
 import { Badge, Button } from '@signozhq/ui';
 import { Info, KeyRound } from '@signozhq/icons';
 import CopyIconButton from '../CopyIconButton';
@@ -7,22 +6,17 @@ import './AuthCard.styles.scss';
 
 interface AuthCardProps {
 	isAdmin: boolean;
-	isCloudUser: boolean;
 	instanceUrl: string;
-	isLoadingInstanceUrl?: boolean;
 	onCopyInstanceUrl: () => void;
 	onCreateServiceAccount: () => void;
 }
 
 function AuthCard({
 	isAdmin,
-	isCloudUser,
 	instanceUrl,
-	isLoadingInstanceUrl = false,
 	onCopyInstanceUrl,
 	onCreateServiceAccount,
 }: AuthCardProps): JSX.Element {
-	const showInstanceUrlUnavailable = isCloudUser && !isAdmin;
 	return (
 		<section className="mcp-auth-card">
 			<h3 className="mcp-auth-card__title">
@@ -38,28 +32,13 @@ function AuthCard({
 
 			<div className="mcp-auth-card__field">
 				<span className="mcp-auth-card__field-label">SigNoz Instance URL</span>
-				{showInstanceUrlUnavailable ? (
-					<div className="mcp-auth-card__info-banner">
-						<Info size={14} />
-						<span
-							className="mcp-auth-card__helper-text"
-							data-testid="mcp-instance-url-unavailable"
-						>
-							Ask your workspace admin for the SigNoz instance URL.
-						</span>
-					</div>
-				) : isLoadingInstanceUrl ? (
-					<Skeleton.Input active size="small" />
-				) : (
-					<div className="mcp-auth-card__endpoint-value">
-						<span data-testid="mcp-instance-url">{instanceUrl}</span>
-						<CopyIconButton
-							ariaLabel="Copy SigNoz instance URL"
-							onCopy={onCopyInstanceUrl}
-							disabled={isLoadingInstanceUrl}
-						/>
-					</div>
-				)}
+				<div className="mcp-auth-card__endpoint-value">
+					<span data-testid="mcp-instance-url">{instanceUrl}</span>
+					<CopyIconButton
+						ariaLabel="Copy SigNoz instance URL"
+						onCopy={onCopyInstanceUrl}
+					/>
+				</div>
 			</div>
 
 			<div className="mcp-auth-card__field">

frontend/src/container/MCPServerSettings/MCPServerSettings.test.tsx

@@ -6,8 +6,6 @@ const mockLogEvent = jest.fn();
 const mockCopyToClipboard = jest.fn();
 const mockHistoryPush = jest.fn();
 const mockUseGetGlobalConfig = jest.fn();
-const mockUseGetHosts = jest.fn();
-const mockUseGetTenantLicense = jest.fn();
 const mockToastSuccess = jest.fn();
 const mockToastWarning = jest.fn();
 
@@ -21,14 +19,6 @@ jest.mock('api/generated/services/global', () => ({
 		mockUseGetGlobalConfig(...args),
 }));
 
-jest.mock('api/generated/services/zeus', () => ({
-	useGetHosts: (...args: unknown[]): unknown => mockUseGetHosts(...args),
-}));
-
-jest.mock('hooks/useGetTenantLicense', () => ({
-	useGetTenantLicense: (): unknown => mockUseGetTenantLicense(),
-}));
-
 jest.mock('react-use', () => ({
 	__esModule: true,
 	useCopyToClipboard: (): [unknown, jest.Mock] => [null, mockCopyToClipboard],
@@ -57,23 +47,6 @@ jest.mock('utils/basePath', () => ({
 }));
 
 const MCP_URL = 'https://mcp.us.signoz.cloud/mcp';
-const CUSTOM_HOST_URL = 'https://myteam.signoz.cloud';
-const DEFAULT_HOST_URL = 'https://default.signoz.cloud';
-
-function setupLicense({
-	isCloudUser = true,
-	isEnterpriseSelfHostedUser = false,
-}: {
-	isCloudUser?: boolean;
-	isEnterpriseSelfHostedUser?: boolean;
-} = {}): void {
-	mockUseGetTenantLicense.mockReturnValue({
-		isCloudUser,
-		isEnterpriseSelfHostedUser,
-		isCommunityUser: !isCloudUser && !isEnterpriseSelfHostedUser,
-		isCommunityEnterpriseUser: false,
-	});
-}
 
 function setupGlobalConfig({ mcpUrl }: { mcpUrl: string | null }): void {
 	mockUseGetGlobalConfig.mockReturnValue({
@@ -82,29 +55,7 @@ function setupGlobalConfig({ mcpUrl }: { mcpUrl: string | null }): void {
 	});
 }
 
-function setupHosts({
-	hosts = [],
-	isLoading = false,
-	isError = false,
-}: {
-	hosts?: { name?: string; url?: string; is_default?: boolean }[];
-	isLoading?: boolean;
-	isError?: boolean;
-} = {}): void {
-	mockUseGetHosts.mockReturnValue({
-		data: isLoading || isError ? undefined : { data: { hosts } },
-		isLoading,
-		isError,
-	});
-}
-
 describe('MCPServerSettings', () => {
-	beforeEach(() => {
-		// Default: cloud user, hosts loaded but empty → instanceUrl falls back to getBaseUrl()
-		setupLicense();
-		setupHosts();
-	});
-
 	afterEach(() => {
 		jest.clearAllMocks();
 	});
@@ -207,154 +158,4 @@ describe('MCPServerSettings', () => {
 			'Instance URL copied to clipboard',
 		);
 	});
-
-	describe('instance URL resolution', () => {
-		it('uses the active custom host URL when available', async () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupHosts({
-				hosts: [
-					{ name: 'default', url: DEFAULT_HOST_URL, is_default: true },
-					{ name: 'myteam', url: CUSTOM_HOST_URL, is_default: false },
-				],
-			});
-			const user = userEvent.setup({ pointerEventsCheck: 0 });
-
-			render(<MCPServerSettings />);
-
-			expect(screen.getByTestId('mcp-instance-url')).toHaveTextContent(
-				CUSTOM_HOST_URL,
-			);
-
-			await user.click(
-				screen.getByRole('button', { name: 'Copy SigNoz instance URL' }),
-			);
-
-			expect(mockCopyToClipboard).toHaveBeenCalledWith(CUSTOM_HOST_URL);
-		});
-
-		it('falls back to the default host URL when no custom host exists', async () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupHosts({
-				hosts: [{ name: 'default', url: DEFAULT_HOST_URL, is_default: true }],
-			});
-			const user = userEvent.setup({ pointerEventsCheck: 0 });
-
-			render(<MCPServerSettings />);
-
-			expect(screen.getByTestId('mcp-instance-url')).toHaveTextContent(
-				DEFAULT_HOST_URL,
-			);
-
-			await user.click(
-				screen.getByRole('button', { name: 'Copy SigNoz instance URL' }),
-			);
-
-			expect(mockCopyToClipboard).toHaveBeenCalledWith(DEFAULT_HOST_URL);
-		});
-
-		it('falls back to browser URL when hosts request errors', async () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupHosts({ isError: true });
-			const user = userEvent.setup({ pointerEventsCheck: 0 });
-
-			render(<MCPServerSettings />);
-
-			await user.click(
-				screen.getByRole('button', { name: 'Copy SigNoz instance URL' }),
-			);
-
-			expect(mockCopyToClipboard).toHaveBeenCalledWith('http://localhost');
-		});
-
-		it('shows URL skeleton while hosts are loading', () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupHosts({ isLoading: true });
-
-			render(<MCPServerSettings />);
-
-			expect(screen.queryByTestId('mcp-instance-url')).not.toBeInTheDocument();
-			expect(document.querySelector('.ant-skeleton-input')).toBeInTheDocument();
-		});
-
-		it('does not copy while hosts are still loading', async () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupHosts({ isLoading: true });
-			userEvent.setup({ pointerEventsCheck: 0 });
-
-			render(<MCPServerSettings />);
-
-			expect(
-				screen.queryByRole('button', { name: 'Copy SigNoz instance URL' }),
-			).not.toBeInTheDocument();
-			expect(mockCopyToClipboard).not.toHaveBeenCalled();
-		});
-
-		it('disables the hosts query for non-cloud deployments', () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupLicense({ isCloudUser: false, isEnterpriseSelfHostedUser: true });
-
-			render(<MCPServerSettings />, undefined, { role: 'ADMIN' });
-
-			const callOptions = mockUseGetHosts.mock.calls[0]?.[0];
-			expect(callOptions?.query?.enabled).toBe(false);
-		});
-
-		it('uses browser URL immediately for enterprise self-hosted (no skeleton)', async () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupLicense({ isCloudUser: false, isEnterpriseSelfHostedUser: true });
-			setupHosts({ isLoading: false });
-			const user = userEvent.setup({ pointerEventsCheck: 0 });
-
-			render(<MCPServerSettings />, undefined, { role: 'ADMIN' });
-
-			expect(
-				document.querySelector('.ant-skeleton-input'),
-			).not.toBeInTheDocument();
-			expect(screen.getByTestId('mcp-instance-url')).toHaveTextContent(
-				'http://localhost',
-			);
-
-			await user.click(
-				screen.getByRole('button', { name: 'Copy SigNoz instance URL' }),
-			);
-
-			expect(mockCopyToClipboard).toHaveBeenCalledWith('http://localhost');
-		});
-
-		it('disables the hosts query for cloud non-admin users', () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupLicense({ isCloudUser: true });
-
-			render(<MCPServerSettings />, undefined, { role: 'VIEWER' });
-
-			const callOptions = mockUseGetHosts.mock.calls[0]?.[0];
-			expect(callOptions?.query?.enabled).toBe(false);
-		});
-
-		it('shows "ask admin" banner for cloud non-admin instead of the URL', () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupLicense({ isCloudUser: true });
-			setupHosts({ isLoading: false });
-
-			render(<MCPServerSettings />, undefined, { role: 'VIEWER' });
-
-			expect(
-				document.querySelector('.ant-skeleton-input'),
-			).not.toBeInTheDocument();
-			expect(screen.queryByTestId('mcp-instance-url')).not.toBeInTheDocument();
-			expect(
-				screen.getByTestId('mcp-instance-url-unavailable'),
-			).toBeInTheDocument();
-		});
-
-		it('enables the hosts query only for cloud admins', () => {
-			setupGlobalConfig({ mcpUrl: MCP_URL });
-			setupLicense({ isCloudUser: true });
-
-			render(<MCPServerSettings />, undefined, { role: 'ADMIN' });
-
-			const callOptions = mockUseGetHosts.mock.calls[0]?.[0];
-			expect(callOptions?.query?.enabled).toBe(true);
-		});
-	});
 });

frontend/src/container/MCPServerSettings/MCPServerSettings.tsx

@@ -1,13 +1,11 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useCallback, useEffect, useState } from 'react';
 import { useCopyToClipboard } from 'react-use';
 import logEvent from 'api/common/logEvent';
 import ROUTES from 'constants/routes';
 import { SA_QUERY_PARAMS } from 'container/ServiceAccountsSettings/constants';
 import { useGetGlobalConfig } from 'api/generated/services/global';
-import { useGetHosts } from 'api/generated/services/zeus';
 import history from 'lib/history';
 import { useAppContext } from 'providers/App/App';
-import { useGetTenantLicense } from 'hooks/useGetTenantLicense';
 import { USER_ROLES } from 'types/roles';
 import { getBaseUrl } from 'utils/basePath';
 
@@ -36,23 +34,7 @@ function MCPServerSettings(): JSX.Element {
 	const [, copyToClipboard] = useCopyToClipboard();
 
 	const isAdmin = user.role === USER_ROLES.ADMIN;
-	const { isCloudUser } = useGetTenantLicense();
-
-	const {
-		data: hostsData,
-		isLoading: isLoadingHosts,
-		isError: isHostsError,
-	} = useGetHosts({ query: { enabled: isCloudUser && isAdmin } });
-
-	const instanceUrl = useMemo(() => {
-		if (isLoadingHosts || isHostsError || !hostsData) {
-			return getBaseUrl();
-		}
-		const hosts = hostsData.data?.hosts ?? [];
-		const activeHost =
-			hosts.find((h) => !h.is_default) ?? hosts.find((h) => h.is_default);
-		return activeHost?.url ?? getBaseUrl();
-	}, [hostsData, isLoadingHosts, isHostsError]);
+	const instanceUrl = getBaseUrl();
 
 	const { data: globalConfig, isLoading: isConfigLoading } =
 		useGetGlobalConfig();
@@ -88,13 +70,10 @@ function MCPServerSettings(): JSX.Element {
 	}, []);
 
 	const handleCopyInstanceUrl = useCallback(() => {
-		if (isLoadingHosts) {
-			return;
-		}
 		copyToClipboard(instanceUrl);
 		toast.success('Instance URL copied to clipboard');
 		void logEvent(ANALYTICS.INSTANCE_URL_COPIED, {});
-	}, [copyToClipboard, instanceUrl, isLoadingHosts]);
+	}, [copyToClipboard, instanceUrl]);
 
 	const handleDocsLinkClick = useCallback((target: string) => {
 		void logEvent(ANALYTICS.DOCS_LINK_CLICKED, { target });
@@ -152,9 +131,7 @@ function MCPServerSettings(): JSX.Element {
 
 			<AuthCard
 				isAdmin={isAdmin}
-				isCloudUser={isCloudUser}
 				instanceUrl={instanceUrl}
-				isLoadingInstanceUrl={isLoadingHosts}
 				onCopyInstanceUrl={handleCopyInstanceUrl}
 				onCreateServiceAccount={handleCreateServiceAccount}
 			/>

pkg/querier/builder_query.go

@@ -265,6 +265,15 @@ func (q *builderQuery[T]) executeWithContext(ctx context.Context, query string,
 		return nil, err
 	}
 
+	// TODO: This should move to readAsRaw function in consume.go but for now we are keeping it here since it's only relevant for traces
+	if q.spec.Signal == telemetrytypes.SignalTraces {
+		if raw, ok := payload.(*qbtypes.RawData); ok {
+			for _, rr := range raw.Rows {
+				mergeSpanAttributeColumns(rr.Data)
+			}
+		}
+	}
+
 	return &qbtypes.Result{
 		Type:  q.kind,
 		Value: payload,

pkg/querier/consume.go

@@ -431,6 +431,45 @@ 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" keys, removing the raw columns.
+func mergeSpanAttributeColumns(data map[string]any) {
+	attrStr := data["attributes_string"]
+	attrNum := data["attributes_number"]
+	attrBool := data["attributes_bool"]
+	// todo(nitya): move to resource json
+	resStr := data["resources_string"]
+
+	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
+
+	resource := map[string]string{}
+	if m, ok := resStr.(map[string]string); ok {
+		resource = m
+	}
+	data["resource"] = resource
+	delete(data, "resources_string")
+}
+
 // numericAsFloat converts numeric types to float64 efficiently.
 func numericAsFloat(v any) float64 {
 	switch x := v.(type) {

pkg/querier/trace_operator_query.go

@@ -85,6 +85,13 @@ func (q *traceOperatorQuery) executeWithContext(ctx context.Context, query strin
 		return nil, err
 	}
 
+	// TODO: This should move to readAsRaw function in consume.go but for now we can keep it here since it's only relevant for traces
+	if raw, ok := payload.(*qbtypes.RawData); ok {
+		for _, rr := range raw.Rows {
+			mergeSpanAttributeColumns(rr.Data)
+		}
+	}
+
 	return &qbtypes.Result{
 		Type:  q.kind,
 		Value: payload,

pkg/telemetrytraces/const.go

@@ -1,6 +1,50 @@
 package telemetrytraces
 
-import "github.com/SigNoz/signoz/pkg/types/telemetrytypes"
+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"
+)
 
 var (
 	IntrinsicFields = map[string]telemetrytypes.TelemetryFieldKey{
@@ -334,6 +378,51 @@ var (
 	SpanSearchScopeRoot       = "isroot"
 	SpanSearchScopeEntryPoint = "isentrypoint"
 
+	// IntrinsicSpanFields lists the intrinsic span columns, in the order they
+	// should appear when a raw query expands its SelectFields.
+	IntrinsicSpanFields = []telemetrytypes.TelemetryFieldKey{
+		{Name: SpanTimestampColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanTraceIDColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanSpanIDColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanTraceStateColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanParentSpanIDColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanFlagsColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanNameColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanKindColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanKindStringColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanDurationNanoColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanStatusCodeColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanStatusMessageColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanStatusCodeStringColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanEventsColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanLinksColumn, FieldContext: telemetrytypes.FieldContextSpan},
+	}
+
+	// CalculatedSpanFields lists the calculated/derived span columns, in the
+	// order they should appear when a raw query expands its SelectFields.
+	CalculatedSpanFields = []telemetrytypes.TelemetryFieldKey{
+		{Name: SpanResponseStatusCodeColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanExternalHTTPURLColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanHTTPURLColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanExternalHTTPMethodColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanHTTPMethodColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanHTTPHostColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanDBNameColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanDBOperationColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanHasErrorColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanIsRemoteColumn, FieldContext: telemetrytypes.FieldContextSpan},
+	}
+
+	// ContextualSpanColumns lists the typed attribute and resource columns
+	// selected raw (rather than via ColumnExpressionFor) so that consume.go
+	// can merge them into unified "attributes" and "resource" maps.
+	ContextualSpanColumns = []string{
+		SpanAttributesStringColumn,
+		SpanAttributesNumberColumn,
+		SpanAttributesBoolColumn,
+		SpanResourcesStringColumn,
+	}
+
 	DefaultFields = map[string]telemetrytypes.TelemetryFieldKey{
 		"timestamp": {
 			Name:          "timestamp",

pkg/telemetrytraces/field_mapper_test.go

@@ -78,6 +78,16 @@ 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

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"log/slog"
-	"slices"
 	"strings"
 
 	"github.com/SigNoz/signoz/pkg/errors"
@@ -16,7 +15,6 @@ 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 (
@@ -89,40 +87,13 @@ func (b *traceQueryStatementBuilder) Build(
 		return nil, err
 	}
 
-	/*
-		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 ----------------------------
-	*/
+	isSelectFieldsEmpty := false
 	if requestType == qbtypes.RequestTypeRaw {
-
-		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])
-			}
-		}
+		isSelectFieldsEmpty = len(query.SelectFields) == 0
+		// 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 = b.expandRawSelectFields(query)
 	}
-	/*
-		-------------------------------- End of tech debt ----------------------------
-	*/
 
 	query = b.adjustKeys(ctx, keys, query, requestType)
 
@@ -131,7 +102,7 @@ func (b *traceQueryStatementBuilder) Build(
 
 	switch requestType {
 	case qbtypes.RequestTypeRaw:
-		return b.buildListQuery(ctx, q, query, start, end, keys, variables)
+		return b.buildListQuery(ctx, q, query, start, end, keys, variables, isSelectFieldsEmpty)
 	case qbtypes.RequestTypeTimeSeries:
 		return b.buildTimeSeriesQuery(ctx, q, query, start, end, keys, variables)
 	case qbtypes.RequestTypeScalar:
@@ -295,6 +266,7 @@ func (b *traceQueryStatementBuilder) buildListQuery(
 	start, end uint64,
 	keys map[string][]*telemetrytypes.TelemetryFieldKey,
 	variables map[string]qbtypes.VariableItem,
+	isSelectFieldsEmpty bool,
 ) (*qbtypes.Statement, error) {
 
 	var (
@@ -309,7 +281,6 @@ 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 {
@@ -318,6 +289,12 @@ func (b *traceQueryStatementBuilder) buildListQuery(
 		sb.SelectMore(colExpr)
 	}
 
+	if isSelectFieldsEmpty {
+		for _, col := range ContextualSpanColumns {
+			sb.SelectMore(col)
+		}
+	}
+
 	// From table
 	sb.From(fmt.Sprintf("%s.%s", DBName, SpanIndexV3TableName))
 
@@ -844,3 +821,30 @@ 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.
+func (b *traceQueryStatementBuilder) expandRawSelectFields(query qbtypes.QueryBuilderQuery[qbtypes.TraceAggregation]) qbtypes.QueryBuilderQuery[qbtypes.TraceAggregation] {
+	if len(query.SelectFields) == 0 {
+		selectFields := make([]telemetrytypes.TelemetryFieldKey, 0, len(IntrinsicSpanFields)+len(CalculatedSpanFields))
+		selectFields = append(selectFields, IntrinsicSpanFields...)
+		selectFields = append(selectFields, CalculatedSpanFields...)
+		query.SelectFields = selectFields
+		return query
+	}
+
+	selectFields := []telemetrytypes.TelemetryFieldKey{
+		{Name: SpanTimestampColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanTraceIDColumn, FieldContext: telemetrytypes.FieldContextSpan},
+		{Name: SpanSpanIDColumn, FieldContext: telemetrytypes.FieldContextSpan},
+	}
+	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
+}

pkg/telemetrytraces/stmt_builder_test.go

@@ -439,7 +439,7 @@ 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 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$$items_count` AS `cart.items_count`, timestamp AS `timestamp`, span_id AS `span_id`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, name AS `name`, multiIf(resource.`service.name` IS NOT NULL, resource.`service.name`::String, mapContains(resources_string, 'service.name'), resources_string['service.name'], NULL) AS `service.name`, duration_nano AS `duration_nano`, `attribute_number_cart$$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 ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -468,7 +468,7 @@ 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 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 ?",
+				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 ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -512,7 +512,7 @@ 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 name AS `name`, resource_string_service$$name AS `serviceName`, duration_nano AS `durationNano`, http_method AS `httpMethod`, response_status_code AS `responseStatusCode`, timestamp AS `timestamp`, span_id AS `span_id`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, name AS `name`, resource_string_service$$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 ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -556,7 +556,7 @@ 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 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$$key`), toString(multiIf(resource.`mixed.materialization.key` IS NOT NULL, resource.`mixed.materialization.key`::String, mapContains(resources_string, 'mixed.materialization.key'), resources_string['mixed.materialization.key'], NULL)) != '', toString(multiIf(resource.`mixed.materialization.key` IS NOT NULL, resource.`mixed.materialization.key`::String, mapContains(resources_string, 'mixed.materialization.key'), resources_string['mixed.materialization.key'], NULL)), NULL) AS `mixed.materialization.key`, timestamp AS `timestamp`, span_id AS `span_id`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, name AS `name`, resource_string_service$$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 ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -601,7 +601,7 @@ 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 name AS `name`, resource_string_service$$name AS `serviceName`, duration_nano AS `durationNano`, http_method AS `httpMethod`, `attribute_string_mixed$$materialization$$key` AS `mixed.materialization.key`, timestamp AS `timestamp`, span_id AS `span_id`, trace_id AS `trace_id` FROM signoz_traces.distributed_signoz_index_v3 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND timestamp < ? AND ts_bucket_start >= ? AND ts_bucket_start <= ? LIMIT ?",
+				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_traces.distributed_traces_v3_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ?) SELECT timestamp AS `timestamp`, trace_id AS `trace_id`, span_id AS `span_id`, name AS `name`, resource_string_service$$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 ?",
 				Args:  []any{"redis-manual", "%service.name%", "%service.name\":\"redis-manual%", uint64(1747945619), uint64(1747983448), "1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -711,7 +711,7 @@ func TestStatementBuilderListQueryWithCorruptData(t *testing.T) {
 				Limit:        10,
 			},
 			expected: qbtypes.Statement{
-				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 ?",
+				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 ?",
 				Args:  []any{"1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,
@@ -744,7 +744,7 @@ func TestStatementBuilderListQueryWithCorruptData(t *testing.T) {
 				}},
 			},
 			expected: qbtypes.Statement{
-				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 ?",
+				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 ?",
 				Args:  []any{"1747947419000000000", "1747983448000000000", uint64(1747945619), uint64(1747983448), 10},
 			},
 			expectedErr: nil,

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

@@ -481,25 +481,24 @@ 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
-        # 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
+        # attribute.timestamp gets adjusted to span.timestamp
         pytest.param(
             {
                 "type": "builder_query",
@@ -507,16 +506,19 @@ def test_traces_list(
                     "name": "A",
                     "signal": "traces",
                     "disabled": False,
-                    "order": [{"key": {"name": "attribute.timestamp"}, "direction": "desc"}],
+                    "selectFields": [
+                        {"name": "span_id"},
+                        {"name": "span.timestamp"},
+                        {"name": "trace_id"},
+                    ],
+                    "order": [
+                        {"key": {"name": "attribute.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,
@@ -542,7 +544,7 @@ def test_traces_list(
             ],  # type: Callable[[List[Traces]], List[Any]]
         ),
         # Case 4: select attribute.timestamp with empty order by
-        # This doesn't return any data because of where_clause using aliased timestamp
+        # This returns the one span which has attribute.timestamp
         pytest.param(
             {
                 "type": "builder_query",
@@ -556,7 +558,11 @@ def test_traces_list(
                 },
             },
             HTTPStatus.OK,
-            lambda x: [],  # type: Callable[[List[Traces]], List[Any]]
+            lambda x: [
+                x[0].span_id,
+                format_timestamp(x[0].timestamp),
+                x[0].trace_id,
+            ],  # type: Callable[[List[Traces]], List[Any]]
         ),
         # Case 5: select timestamp with timestamp order by
         pytest.param(
@@ -693,6 +699,112 @@ 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=UTC) - timedelta(minutes=5)).timestamp() * 1000
+        ),
+        end_ms=int(datetime.now(tz=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",
     [