test: histogram percentile integration tests

* fix: guard against undefined spread in useGetQueryLabels

* chore: add tests

.devenv/docker/clickhouse/compose.yaml

@@ -1,4 +1,22 @@
 services:
+  init-clickhouse:
+    image: clickhouse/clickhouse-server:25.5.6
+    container_name: init-clickhouse
+    command:
+      - bash
+      - -c
+      - |
+        version="v0.0.1"
+        node_os=$$(uname -s | tr '[:upper:]' '[:lower:]')
+        node_arch=$$(uname -m | sed s/aarch64/arm64/ | sed s/x86_64/amd64/)
+        echo "Fetching histogram-binary for $${node_os}/$${node_arch}"
+        cd /tmp
+        wget -O histogram-quantile.tar.gz "https://github.com/SigNoz/signoz/releases/download/histogram-quantile%2F$${version}/histogram-quantile_$${node_os}_$${node_arch}.tar.gz"
+        tar -xvzf histogram-quantile.tar.gz
+        mv histogram-quantile /var/lib/clickhouse/user_scripts/histogramQuantile
+    restart: on-failure
+    volumes:
+      - ${PWD}/fs/tmp/var/lib/clickhouse/user_scripts/:/var/lib/clickhouse/user_scripts/
   clickhouse:
     image: clickhouse/clickhouse-server:25.5.6
     container_name: clickhouse
@@ -7,6 +25,7 @@ services:
       - ${PWD}/fs/etc/clickhouse-server/users.d/users.xml:/etc/clickhouse-server/users.d/users.xml
       - ${PWD}/fs/tmp/var/lib/clickhouse/:/var/lib/clickhouse/
       - ${PWD}/fs/tmp/var/lib/clickhouse/user_scripts/:/var/lib/clickhouse/user_scripts/
+      - ${PWD}/../../../deploy/common/clickhouse/custom-function.xml:/etc/clickhouse-server/custom-function.xml
     ports:
       - '127.0.0.1:8123:8123'
       - '127.0.0.1:9000:9000'
@@ -22,7 +41,10 @@ services:
       timeout: 5s
       retries: 3
     depends_on:
-      - zookeeper
+      init-clickhouse:
+        condition: service_completed_successfully
+      zookeeper:
+        condition: service_healthy
     environment:
       - CLICKHOUSE_SKIP_USER_SETUP=1
   zookeeper:

.devenv/docker/clickhouse/fs/etc/clickhouse-server/config.d/config.xml

@@ -44,4 +44,5 @@
         <shard>01</shard>
         <replica>01</replica>
     </macros>
+    <user_defined_executable_functions_config>*function.xml</user_defined_executable_functions_config>
 </clickhouse>

frontend/src/container/DashboardContainer/DashboardDescription/__tests__/DashboardDescription.test.tsx

@@ -193,7 +193,6 @@ describe('Dashboard landing page actions header tests', () => {
 			handleDashboardLockToggle: jest.fn(),
 			dashboardResponse: {} as IDashboardContext['dashboardResponse'],
 			selectedDashboard: (getDashboardById.data as unknown) as Dashboard,
-			dashboardId: '4',
 			layouts: [],
 			panelMap: {},
 			setPanelMap: jest.fn(),
@@ -205,8 +204,6 @@ describe('Dashboard landing page actions header tests', () => {
 			updateLocalStorageDashboardVariables: jest.fn(),
 			dashboardQueryRangeCalled: false,
 			setDashboardQueryRangeCalled: jest.fn(),
-			selectedRowWidgetId: null,
-			setSelectedRowWidgetId: jest.fn(),
 			isDashboardFetching: false,
 			columnWidths: {},
 			setColumnWidths: jest.fn(),

frontend/src/container/DashboardContainer/DashboardDescription/index.tsx

@@ -78,7 +78,6 @@ function DashboardDescription(props: DashboardDescriptionProps): JSX.Element {
 		isDashboardLocked,
 		setSelectedDashboard,
 		handleToggleDashboardSlider,
-		setSelectedRowWidgetId,
 		handleDashboardLockToggle,
 	} = useDashboard();
 
@@ -146,7 +145,6 @@ function DashboardDescription(props: DashboardDescriptionProps): JSX.Element {
 	const [addPanelPermission] = useComponentPermission(permissions, userRole);
 
 	const onEmptyWidgetHandler = useCallback(() => {
-		setSelectedRowWidgetId(null);
 		handleToggleDashboardSlider(true);
 		logEvent('Dashboard Detail: Add new panel clicked', {
 			dashboardId: selectedDashboard?.id,

frontend/src/container/DashboardContainer/DashboardVariablesSelection/useDashboardVariableUpdate.ts

@@ -67,17 +67,18 @@ export const useDashboardVariableUpdate = (): UseDashboardVariableUpdateReturn =
 							const oldVariables = prev?.data.variables;
 							// this is added to handle case where we have two different
 							// schemas for variable response
-							if (oldVariables?.[id]) {
-								oldVariables[id] = {
-									...oldVariables[id],
+							const updatedVariables = { ...oldVariables };
+							if (updatedVariables?.[id]) {
+								updatedVariables[id] = {
+									...updatedVariables[id],
 									selectedValue: value,
 									allSelected,
 									haveCustomValuesSelected,
 								};
 							}
-							if (oldVariables?.[name]) {
-								oldVariables[name] = {
-									...oldVariables[name],
+							if (updatedVariables?.[name]) {
+								updatedVariables[name] = {
+									...updatedVariables[name],
 									selectedValue: value,
 									allSelected,
 									haveCustomValuesSelected,
@@ -87,9 +88,7 @@ export const useDashboardVariableUpdate = (): UseDashboardVariableUpdateReturn =
 								...prev,
 								data: {
 									...prev?.data,
-									variables: {
-										...oldVariables,
-									},
+									variables: updatedVariables,
 								},
 							};
 						}

frontend/src/container/DashboardContainer/visualization/panels/BarPanel/BarPanel.tsx

@@ -6,7 +6,6 @@ import { useResizeObserver } from 'hooks/useDimensions';
 import { LegendPosition } from 'lib/uPlotV2/components/types';
 import ContextMenu from 'periscope/components/ContextMenu';
 import { useTimezone } from 'providers/Timezone';
-import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
 import uPlot from 'uplot';
 import { getTimeRange } from 'utils/getTimeRange';
 
@@ -62,7 +61,7 @@ function BarPanel(props: PanelWrapperProps): JSX.Element {
 			currentQuery: widget.query,
 			onClick: clickHandlerWithContextMenu,
 			onDragSelect,
-			apiResponse: queryResponse?.data?.payload as MetricRangePayloadProps,
+			apiResponse: queryResponse?.data?.payload,
 			timezone,
 			panelMode,
 			minTimeScale: minTimeScale,

frontend/src/container/DashboardContainer/visualization/panels/BarPanel/utils.ts

@@ -11,7 +11,6 @@ import { get } from 'lodash-es';
 import { Widgets } from 'types/api/dashboard/getAll';
 import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
 import { Query } from 'types/api/queryBuilder/queryBuilderData';
-import { QueryData } from 'types/api/widgets/getQuery';
 import { AlignedData } from 'uplot';
 
 import { PanelMode } from '../types';
@@ -44,7 +43,7 @@ export function prepareBarPanelConfig({
 	currentQuery: Query;
 	onClick: OnClickPluginOpts['onClick'];
 	onDragSelect: (startTime: number, endTime: number) => void;
-	apiResponse: MetricRangePayloadProps;
+	apiResponse?: MetricRangePayloadProps;
 	timezone: Timezone;
 	panelMode: PanelMode;
 	minTimeScale?: number;
@@ -76,13 +75,17 @@ export function prepareBarPanelConfig({
 		stepInterval: minStepInterval,
 	});
 
+	if (!(apiResponse && apiResponse?.data?.result)) {
+		// if no data, return the builder without adding any series
+		return builder;
+	}
+
 	if (widget.stackedBarChart) {
-		const seriesCount = (apiResponse?.data?.result?.length ?? 0) + 1; // +1 for 1-based uPlot series indices
+		const seriesCount = (apiResponse.data.result.length ?? 0) + 1; // +1 for 1-based uPlot series indices
 		builder.setBands(getInitialStackedBands(seriesCount));
 	}
 
-	const seriesList: QueryData[] = apiResponse?.data?.result || [];
-	seriesList.forEach((series) => {
+	apiResponse.data.result.forEach((series) => {
 		const baseLabelName = getLabelName(
 			series.metric,
 			series.queryName || '', // query

frontend/src/container/DashboardContainer/visualization/panels/HistogramPanel/HistogramPanel.tsx

@@ -6,7 +6,6 @@ import { useResizeObserver } from 'hooks/useDimensions';
 import { LegendPosition } from 'lib/uPlotV2/components/types';
 import { DashboardCursorSync } from 'lib/uPlotV2/plugins/TooltipPlugin/types';
 import { useTimezone } from 'providers/Timezone';
-import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
 import uPlot from 'uplot';
 
 import Histogram from '../../charts/Histogram/Histogram';
@@ -39,7 +38,7 @@ function HistogramPanel(props: PanelWrapperProps): JSX.Element {
 		return prepareHistogramPanelConfig({
 			widget,
 			isDarkMode,
-			apiResponse: queryResponse?.data?.payload as MetricRangePayloadProps,
+			apiResponse: queryResponse?.data?.payload,
 			panelMode,
 		});
 	}, [widget, isDarkMode, queryResponse?.data?.payload, panelMode]);
@@ -49,7 +48,7 @@ function HistogramPanel(props: PanelWrapperProps): JSX.Element {
 			return [];
 		}
 		return prepareHistogramPanelData({
-			apiResponse: queryResponse?.data?.payload as MetricRangePayloadProps,
+			apiResponse: queryResponse?.data?.payload,
 			bucketWidth: widget?.bucketWidth,
 			bucketCount: widget?.bucketCount,
 			mergeAllActiveQueries: widget?.mergeAllActiveQueries,

frontend/src/container/DashboardContainer/visualization/panels/HistogramPanel/utils.ts

@@ -149,7 +149,7 @@ export function prepareHistogramPanelConfig({
 	isDarkMode,
 }: {
 	widget: Widgets;
-	apiResponse: MetricRangePayloadProps;
+	apiResponse?: MetricRangePayloadProps;
 	panelMode: PanelMode;
 	isDarkMode: boolean;
 }): UPlotConfigBuilder {
@@ -204,7 +204,7 @@ export function prepareHistogramPanelConfig({
 			fillColor: '#4E74F8',
 			isDarkMode,
 		});
-	} else {
+	} else if (apiResponse && apiResponse?.data?.result) {
 		apiResponse.data.result.forEach((series) => {
 			const baseLabelName = getLabelName(
 				series.metric,

frontend/src/container/DashboardContainer/visualization/panels/TimeSeriesPanel/TimeSeriesPanel.tsx

@@ -9,7 +9,6 @@ import { useResizeObserver } from 'hooks/useDimensions';
 import { LegendPosition } from 'lib/uPlotV2/components/types';
 import { ContextMenu } from 'periscope/components/ContextMenu';
 import { useTimezone } from 'providers/Timezone';
-import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
 import uPlot from 'uplot';
 import { getTimeRange } from 'utils/getTimeRange';
 
@@ -68,7 +67,7 @@ function TimeSeriesPanel(props: PanelWrapperProps): JSX.Element {
 			currentQuery: widget.query,
 			onClick: clickHandlerWithContextMenu,
 			onDragSelect,
-			apiResponse: queryResponse?.data?.payload as MetricRangePayloadProps,
+			apiResponse: queryResponse?.data?.payload,
 			timezone,
 			panelMode,
 			minTimeScale: minTimeScale,

frontend/src/container/DashboardContainer/visualization/panels/TimeSeriesPanel/utils.ts

@@ -68,11 +68,12 @@ export const prepareUPlotConfig = ({
 	currentQuery: Query;
 	onClick?: OnClickPluginOpts['onClick'];
 	onDragSelect: (startTime: number, endTime: number) => void;
-	apiResponse: MetricRangePayloadProps;
+	apiResponse?: MetricRangePayloadProps;
 	timezone: Timezone;
 	panelMode: PanelMode;
 	minTimeScale?: number;
 	maxTimeScale?: number;
+	// eslint-disable-next-line sonarjs/cognitive-complexity
 }): UPlotConfigBuilder => {
 	const stepIntervals: ExecStats['stepIntervals'] = get(
 		apiResponse,
@@ -100,7 +101,12 @@ export const prepareUPlotConfig = ({
 		stepInterval: minStepInterval,
 	});
 
-	apiResponse.data?.result?.forEach((series) => {
+	if (!(apiResponse && apiResponse.data.result)) {
+		// if no data, return the builder without adding any series
+		return builder;
+	}
+
+	apiResponse.data.result.forEach((series) => {
 		const hasSingleValidPoint = hasSingleVisiblePointForSeries(series);
 		const baseLabelName = getLabelName(
 			series.metric,

frontend/src/container/DashboardContainer/visualization/panels/utils/baseConfigBuilder.ts

@@ -18,7 +18,7 @@ import { PanelMode } from '../types';
 export interface BaseConfigBuilderProps {
 	id: string;
 	thresholds?: ThresholdProps[];
-	apiResponse: MetricRangePayloadProps;
+	apiResponse?: MetricRangePayloadProps;
 	isDarkMode: boolean;
 	onClick?: OnClickPluginOpts['onClick'];
 	onDragSelect?: (startTime: number, endTime: number) => void;

frontend/src/container/GridCardLayout/DashboardEmptyState/DashboardEmptyState.tsx

@@ -19,7 +19,6 @@ export default function DashboardEmptyState(): JSX.Element {
 		selectedDashboard,
 		isDashboardLocked,
 		handleToggleDashboardSlider,
-		setSelectedRowWidgetId,
 	} = useDashboard();
 
 	const variablesSettingsTabHandle = useRef<VariablesSettingsTab>(null);
@@ -42,7 +41,6 @@ export default function DashboardEmptyState(): JSX.Element {
 	const [addPanelPermission] = useComponentPermission(permissions, userRole);
 
 	const onEmptyWidgetHandler = useCallback(() => {
-		setSelectedRowWidgetId(null);
 		handleToggleDashboardSlider(true);
 		logEvent('Dashboard Detail: Add new panel clicked', {
 			dashboardId: selectedDashboard?.id,

frontend/src/container/GridCardLayout/GridCardLayout.tsx

@@ -71,7 +71,6 @@ function GraphLayout(props: GraphLayoutProps): JSX.Element {
 		isDashboardLocked,
 		dashboardQueryRangeCalled,
 		setDashboardQueryRangeCalled,
-		setSelectedRowWidgetId,
 		isDashboardFetching,
 		columnWidths,
 	} = useDashboard();
@@ -195,7 +194,6 @@ function GraphLayout(props: GraphLayoutProps): JSX.Element {
 
 		updateDashboardMutation.mutate(updatedDashboard, {
 			onSuccess: (updatedDashboard) => {
-				setSelectedRowWidgetId(null);
 				if (updatedDashboard.data) {
 					if (updatedDashboard.data.data.layout) {
 						setLayouts(sortLayout(updatedDashboard.data.data.layout));

frontend/src/container/GridCardLayout/WidgetRow.tsx

@@ -5,6 +5,7 @@ import useComponentPermission from 'hooks/useComponentPermission';
 import { EllipsisIcon, PenLine, Plus, X } from 'lucide-react';
 import { useAppContext } from 'providers/App/App';
 import { useDashboard } from 'providers/Dashboard/Dashboard';
+import { setSelectedRowWidgetId } from 'providers/Dashboard/helpers/selectedRowWidgetIdHelper';
 import { ROLES, USER_ROLES } from 'types/roles';
 import { ComponentTypes } from 'utils/permission';
 
@@ -37,7 +38,6 @@ export function WidgetRowHeader(props: WidgetRowHeaderProps): JSX.Element {
 		handleToggleDashboardSlider,
 		selectedDashboard,
 		isDashboardLocked,
-		setSelectedRowWidgetId,
 	} = useDashboard();
 
 	const permissions: ComponentTypes[] = ['add_panel'];
@@ -81,7 +81,12 @@ export function WidgetRowHeader(props: WidgetRowHeaderProps): JSX.Element {
 							disabled={!editWidget && addPanelPermission && !isDashboardLocked}
 							icon={<Plus size={14} />}
 							onClick={(): void => {
-								setSelectedRowWidgetId(id);
+								// TODO: @AshwinBhatkal Simplify this check in cleanup of https://github.com/SigNoz/engineering-pod/issues/3953
+								if (!selectedDashboard?.id) {
+									return;
+								}
+
+								setSelectedRowWidgetId(selectedDashboard.id, id);
 								handleToggleDashboardSlider(true);
 							}}
 						>

frontend/src/container/NewWidget/index.tsx

@@ -34,6 +34,10 @@ import { cloneDeep, defaultTo, isEmpty, isUndefined } from 'lodash-es';
 import { Check, X } from 'lucide-react';
 import { DashboardWidgetPageParams } from 'pages/DashboardWidget';
 import { useDashboard } from 'providers/Dashboard/Dashboard';
+import {
+	clearSelectedRowWidgetId,
+	getSelectedRowWidgetId,
+} from 'providers/Dashboard/helpers/selectedRowWidgetIdHelper';
 import {
 	getNextWidgets,
 	getPreviousWidgets,
@@ -86,8 +90,6 @@ function NewWidget({
 		selectedDashboard,
 		setSelectedDashboard,
 		setToScrollWidgetId,
-		selectedRowWidgetId,
-		setSelectedRowWidgetId,
 		columnWidths,
 	} = useDashboard();
 
@@ -450,6 +452,8 @@ function NewWidget({
 		const widgetId = query.get('widgetId') || '';
 		let updatedLayout = selectedDashboard.data.layout || [];
 
+		const selectedRowWidgetId = getSelectedRowWidgetId(dashboardId);
+
 		if (isNewDashboard && isEmpty(selectedRowWidgetId)) {
 			const newLayoutItem = placeWidgetAtBottom(widgetId, updatedLayout);
 			updatedLayout = [...updatedLayout, newLayoutItem];
@@ -554,7 +558,6 @@ function NewWidget({
 
 		updateDashboardMutation.mutateAsync(dashboard, {
 			onSuccess: (updatedDashboard) => {
-				setSelectedRowWidgetId(null);
 				setSelectedDashboard(updatedDashboard.data);
 				setToScrollWidgetId(selectedWidget?.id || '');
 				safeNavigate({
@@ -566,7 +569,6 @@ function NewWidget({
 		selectedDashboard,
 		query,
 		isNewDashboard,
-		selectedRowWidgetId,
 		afterWidgets,
 		selectedWidget,
 		selectedTime.enum,
@@ -577,7 +579,6 @@ function NewWidget({
 		widgets,
 		setSelectedDashboard,
 		setToScrollWidgetId,
-		setSelectedRowWidgetId,
 		safeNavigate,
 		dashboardId,
 	]);
@@ -681,6 +682,10 @@ function NewWidget({
 		 * on mount here with the currentQuery in the begining itself
 		 */
 		setSupersetQuery(currentQuery);
+
+		return (): void => {
+			clearSelectedRowWidgetId(dashboardId);
+		};
 		// eslint-disable-next-line react-hooks/exhaustive-deps
 	}, []);
 

frontend/src/hooks/useGetQueryLabels.test.ts

@@ -0,0 +1,129 @@
+import { renderHook } from '@testing-library/react';
+import {
+	IBuilderFormula,
+	IClickHouseQuery,
+	IPromQLQuery,
+	Query,
+} from 'types/api/queryBuilder/queryBuilderData';
+import { EQueryType } from 'types/common/dashboard';
+
+import { useGetQueryLabels } from './useGetQueryLabels';
+
+jest.mock('components/QueryBuilderV2/utils', () => ({
+	getQueryLabelWithAggregation: jest.fn(() => []),
+}));
+
+function buildQuery(overrides: Partial<Query> = {}): Query {
+	return {
+		id: 'test-id',
+		queryType: EQueryType.QUERY_BUILDER,
+		builder: {
+			queryData: [],
+			queryFormulas: [],
+			queryTraceOperator: [],
+		},
+		promql: [],
+		clickhouse_sql: [],
+		...overrides,
+	};
+}
+
+describe('useGetQueryLabels', () => {
+	describe('QUERY_BUILDER type', () => {
+		it('returns empty array when queryFormulas is undefined', () => {
+			const query = buildQuery({
+				queryType: EQueryType.QUERY_BUILDER,
+				builder: {
+					queryData: [],
+					queryFormulas: (undefined as unknown) as IBuilderFormula[],
+					queryTraceOperator: [],
+				},
+			});
+
+			const { result } = renderHook(() => useGetQueryLabels(query));
+
+			expect(result.current).toEqual([]);
+		});
+
+		it('returns formula labels when queryFormulas is populated', () => {
+			const query = buildQuery({
+				queryType: EQueryType.QUERY_BUILDER,
+				builder: {
+					queryData: [],
+					queryFormulas: [
+						({ queryName: 'F1' } as unknown) as IBuilderFormula,
+						({ queryName: 'F2' } as unknown) as IBuilderFormula,
+					],
+					queryTraceOperator: [],
+				},
+			});
+
+			const { result } = renderHook(() => useGetQueryLabels(query));
+
+			expect(result.current).toEqual([
+				{ label: 'F1', value: 'F1' },
+				{ label: 'F2', value: 'F2' },
+			]);
+		});
+	});
+
+	describe('CLICKHOUSE type', () => {
+		it('returns empty array when clickhouse_sql is undefined', () => {
+			const query = buildQuery({
+				queryType: EQueryType.CLICKHOUSE,
+				clickhouse_sql: (undefined as unknown) as IClickHouseQuery[],
+			});
+
+			const { result } = renderHook(() => useGetQueryLabels(query));
+
+			expect(result.current).toEqual([]);
+		});
+
+		it('returns labels from clickhouse_sql when populated', () => {
+			const query = buildQuery({
+				queryType: EQueryType.CLICKHOUSE,
+				clickhouse_sql: [
+					({ name: 'query_a' } as unknown) as IClickHouseQuery,
+					({ name: 'query_b' } as unknown) as IClickHouseQuery,
+				],
+			});
+
+			const { result } = renderHook(() => useGetQueryLabels(query));
+
+			expect(result.current).toEqual([
+				{ label: 'query_a', value: 'query_a' },
+				{ label: 'query_b', value: 'query_b' },
+			]);
+		});
+	});
+
+	describe('PROM type (default)', () => {
+		it('returns empty array when promql is undefined', () => {
+			const query = buildQuery({
+				queryType: EQueryType.PROM,
+				promql: (undefined as unknown) as IPromQLQuery[],
+			});
+
+			const { result } = renderHook(() => useGetQueryLabels(query));
+
+			expect(result.current).toEqual([]);
+		});
+
+		it('returns labels from promql when populated', () => {
+			const query = buildQuery({
+				queryType: EQueryType.PROM,
+				promql: [
+					({ name: 'prom_1' } as unknown) as IPromQLQuery,
+					({ name: 'prom_2' } as unknown) as IPromQLQuery,
+				],
+			});
+
+			const { result } = renderHook(() => useGetQueryLabels(query));
+
+			expect(result.current).toEqual([
+				{ label: 'prom_1', value: 'prom_1' },
+				{ label: 'prom_2', value: 'prom_2' },
+			]);
+		});
+	});
+});

frontend/src/hooks/useGetQueryLabels.ts

@@ -11,7 +11,7 @@ export const useGetQueryLabels = (
 			const queryLabels = getQueryLabelWithAggregation(
 				currentQuery?.builder?.queryData || [],
 			);
-			const formulaLabels = currentQuery?.builder?.queryFormulas?.map(
+			const formulaLabels = (currentQuery?.builder?.queryFormulas ?? []).map(
 				(formula) => ({
 					label: formula.queryName,
 					value: formula.queryName,
@@ -20,10 +20,13 @@ export const useGetQueryLabels = (
 			return [...queryLabels, ...formulaLabels];
 		}
 		if (currentQuery?.queryType === EQueryType.CLICKHOUSE) {
-			return currentQuery?.clickhouse_sql?.map((q) => ({
+			return (currentQuery?.clickhouse_sql ?? []).map((q) => ({
 				label: q.name,
 				value: q.name,
 			}));
 		}
-		return currentQuery?.promql?.map((q) => ({ label: q.name, value: q.name }));
+		return (currentQuery?.promql ?? []).map((q) => ({
+			label: q.name,
+			value: q.name,
+		}));
 	}, [currentQuery]);

frontend/src/providers/Dashboard/Dashboard.tsx

@@ -68,7 +68,6 @@ export const DashboardContext = createContext<IDashboardContext>({
 		APIError
 	>,
 	selectedDashboard: {} as Dashboard,
-	dashboardId: '',
 	layouts: [],
 	panelMap: {},
 	setPanelMap: () => {},
@@ -81,8 +80,6 @@ export const DashboardContext = createContext<IDashboardContext>({
 	updateLocalStorageDashboardVariables: () => {},
 	dashboardQueryRangeCalled: false,
 	setDashboardQueryRangeCalled: () => {},
-	selectedRowWidgetId: '',
-	setSelectedRowWidgetId: () => {},
 	isDashboardFetching: false,
 	columnWidths: {},
 	setColumnWidths: () => {},
@@ -102,10 +99,6 @@ export function DashboardProvider({
 
 	const [isDashboardLocked, setIsDashboardLocked] = useState<boolean>(false);
 
-	const [selectedRowWidgetId, setSelectedRowWidgetId] = useState<string | null>(
-		null,
-	);
-
 	const [
 		dashboardQueryRangeCalled,
 		setDashboardQueryRangeCalled,
@@ -468,8 +461,6 @@ export function DashboardProvider({
 			updateLocalStorageDashboardVariables,
 			dashboardQueryRangeCalled,
 			setDashboardQueryRangeCalled,
-			selectedRowWidgetId,
-			setSelectedRowWidgetId,
 			isDashboardFetching,
 			columnWidths,
 			setColumnWidths,
@@ -488,8 +479,6 @@ export function DashboardProvider({
 			currentDashboard,
 			dashboardQueryRangeCalled,
 			setDashboardQueryRangeCalled,
-			selectedRowWidgetId,
-			setSelectedRowWidgetId,
 			isDashboardFetching,
 			columnWidths,
 			setColumnWidths,

frontend/src/providers/Dashboard/__tests__/Dashboard.test.tsx

@@ -58,8 +58,9 @@ jest.mock('react-redux', () => ({
 jest.mock('uuid', () => ({ v4: jest.fn(() => 'mock-uuid') }));
 
 function TestComponent(): JSX.Element {
-	const { dashboardResponse, dashboardId, selectedDashboard } = useDashboard();
+	const { dashboardResponse, selectedDashboard } = useDashboard();
 	const { dashboardVariables } = useDashboardVariables();
+	const dashboardId = selectedDashboard?.id;
 
 	return (
 		<div>

frontend/src/providers/Dashboard/helpers/selectedRowWidgetIdHelper.ts

@@ -0,0 +1,28 @@
+const PREFIX = 'dashboard_row_widget_';
+
+function getKey(dashboardId: string): string {
+	return `${PREFIX}${dashboardId}`;
+}
+
+export function setSelectedRowWidgetId(
+	dashboardId: string,
+	widgetId: string,
+): void {
+	const key = getKey(dashboardId);
+
+	// remove all other selected widget ids for the dashboard before setting the new one
+	// to ensure only one widget is selected at a time. Helps out in weird navigate and refresh scenarios
+	Object.keys(sessionStorage)
+		.filter((k) => k.startsWith(PREFIX) && k !== key)
+		.forEach((k) => sessionStorage.removeItem(k));
+
+	sessionStorage.setItem(key, widgetId);
+}
+
+export function getSelectedRowWidgetId(dashboardId: string): string | null {
+	return sessionStorage.getItem(getKey(dashboardId));
+}
+
+export function clearSelectedRowWidgetId(dashboardId: string): void {
+	sessionStorage.removeItem(getKey(dashboardId));
+}

frontend/src/providers/Dashboard/types.ts

@@ -15,7 +15,6 @@ export interface IDashboardContext {
 	handleDashboardLockToggle: (value: boolean) => void;
 	dashboardResponse: UseQueryResult<SuccessResponseV2<Dashboard>, unknown>;
 	selectedDashboard: Dashboard | undefined;
-	dashboardId: string;
 	layouts: Layout[];
 	panelMap: Record<string, { widgets: Layout[]; collapsed: boolean }>;
 	setPanelMap: React.Dispatch<React.SetStateAction<Record<string, any>>>;
@@ -40,8 +39,6 @@ export interface IDashboardContext {
 	) => void;
 	dashboardQueryRangeCalled: boolean;
 	setDashboardQueryRangeCalled: (value: boolean) => void;
-	selectedRowWidgetId: string | null;
-	setSelectedRowWidgetId: React.Dispatch<React.SetStateAction<string | null>>;
 	isDashboardFetching: boolean;
 	columnWidths: WidgetColumnWidths;
 	setColumnWidths: React.Dispatch<React.SetStateAction<WidgetColumnWidths>>;

tests/integration/fixtures/clickhouse.py

@@ -75,6 +75,8 @@ def clickhouse(
                 </cluster>
             </remote_servers>
 
+            <user_defined_executable_functions_config>*function.xml</user_defined_executable_functions_config>
+
             <distributed_ddl>
                 <path>/clickhouse/task_queue/ddl</path>
                 <profile>default</profile>
@@ -117,17 +119,74 @@ def clickhouse(
         </clickhouse>
         """
 
+        custom_function_config = """
+        <functions>
+            <function>
+                <type>executable</type>
+                <name>histogramQuantile</name>
+                <return_type>Float64</return_type>
+                <argument>
+                    <type>Array(Float64)</type>
+                    <name>buckets</name>
+                </argument>
+                <argument>
+                    <type>Array(Float64)</type>
+                    <name>counts</name>
+                </argument>
+                <argument>
+                    <type>Float64</type>
+                    <name>quantile</name>
+                </argument>
+                <format>CSV</format>
+                <command>./histogramQuantile</command>
+            </function>
+        </functions>
+        """
+
         tmp_dir = tmpfs("clickhouse")
         cluster_config_file_path = os.path.join(tmp_dir, "cluster.xml")
         with open(cluster_config_file_path, "w", encoding="utf-8") as f:
             f.write(cluster_config)
 
+        custom_function_file_path = os.path.join(tmp_dir, "custom-function.xml")
+        with open(custom_function_file_path, "w", encoding="utf-8") as f:
+            f.write(custom_function_config)
+
         container.with_volume_mapping(
             cluster_config_file_path, "/etc/clickhouse-server/config.d/cluster.xml"
         )
+        container.with_volume_mapping(
+            custom_function_file_path,
+            "/etc/clickhouse-server/custom-function.xml",
+        )
         container.with_network(network)
         container.start()
 
+        # Download and install the histogramQuantile binary
+        wrapped = container.get_wrapped_container()
+        exit_code, output = wrapped.exec_run(
+            [
+                "bash",
+                "-c",
+                (
+                    'version="v0.0.1" && '
+                    'node_os=$(uname -s | tr "[:upper:]" "[:lower:]") && '
+                    'node_arch=$(uname -m | sed s/aarch64/arm64/ | sed s/x86_64/amd64/) && '
+                    "cd /tmp && "
+                    'wget -O histogram-quantile.tar.gz "https://github.com/SigNoz/signoz/releases/download/histogram-quantile%2F${version}/histogram-quantile_${node_os}_${node_arch}.tar.gz" && '
+                    "tar -xzf histogram-quantile.tar.gz && "
+                    "mkdir -p /var/lib/clickhouse/user_scripts && "
+                    "mv histogram-quantile /var/lib/clickhouse/user_scripts/histogramQuantile && "
+                    "chmod +x /var/lib/clickhouse/user_scripts/histogramQuantile"
+                ),
+            ],
+        )
+        if exit_code != 0:
+            logger.warning(
+                "Failed to install histogramQuantile binary: %s",
+                output.decode(),
+            )
+
         connection = clickhouse_connect.get_client(
             user=container.username,
             password=container.password,

tests/integration/src/querier/08_metrics_histogram.py

@@ -372,3 +372,153 @@ def test_histogram_count_no_param(
             values[1]["value"] == first_values[le]
         )  ## to keep parallel to the cumulative test cases, first_value refers to the value at 10:02
         assert values[-1]["value"] == last_values[le]
+
+@pytest.mark.parametrize(
+    "space_agg, zeroth_value, first_value, last_value",
+    [
+        ("p50", 500, 818.182, 550.725),
+        ("p75", 750, 3000, 826.087),
+        ("p90", 900, 6400, 991.304),
+        ("p95", 950, 8000, 4200),
+        ("p99", 990, 8000, 8000),
+    ],
+)
+def test_histogram_percentile_for_all_services(
+    signoz: types.SigNoz,
+    create_user_admin: None,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+    insert_metrics: Callable[[List[Metrics]], None],
+    space_agg: str,
+    zeroth_value: float,
+    first_value: float,
+    last_value: float,
+) -> None:
+    now = datetime.now(tz=timezone.utc).replace(second=0, microsecond=0)
+    start_ms = int((now - timedelta(minutes=65)).timestamp() * 1000)
+    end_ms = int(now.timestamp() * 1000)
+    metric_name = f"test_{space_agg}_bucket"
+
+    metrics = Metrics.load_from_file(
+        FILE,
+        base_time=now - timedelta(minutes=60),
+        metric_name_override=metric_name,
+    )
+    insert_metrics(metrics)
+
+    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
+    query = build_builder_query(
+        "A",
+        metric_name,
+        "doesnotreallymatter",
+        space_agg,
+    )
+
+    response = make_query_request(signoz, token, start_ms, end_ms, [query])
+    assert response.status_code == HTTPStatus.OK
+
+    data = response.json()
+    result_values = sorted(get_series_values(data, "A"), key=lambda x: x["timestamp"])
+    assert len(result_values) == 60
+    assert result_values[0]["value"] == zeroth_value
+    assert result_values[1]["value"] == first_value
+    assert result_values[-1]["value"] == last_value
+
+@pytest.mark.parametrize(
+    "space_agg, first_value, last_value",
+    [
+        ("p50", 818.182, 550.725),
+        ("p75", 3000, 826.087),
+        ("p90", 6400, 991.304),
+        ("p95", 8000, 4200),
+        ("p99", 8000, 8000),
+    ],
+)
+def test_histogram_percentile_for_cumulative_service(
+    signoz: types.SigNoz,
+    create_user_admin: None,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+    insert_metrics: Callable[[List[Metrics]], None],
+    space_agg: str,
+    first_value: float,
+    last_value: float,
+) -> None:
+    now = datetime.now(tz=timezone.utc).replace(second=0, microsecond=0)
+    start_ms = int((now - timedelta(minutes=65)).timestamp() * 1000)
+    end_ms = int(now.timestamp() * 1000)
+    metric_name = f"test_{space_agg}_cumulative_bucket"
+
+    metrics = Metrics.load_from_file(
+        FILE,
+        base_time=now - timedelta(minutes=60),
+        metric_name_override=metric_name,
+    )
+    insert_metrics(metrics)
+
+    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
+    query = build_builder_query(
+        "A",
+        metric_name,
+        "doesnotreallymatter",
+        space_agg,
+        filter_expression='service = "api"',
+    )
+
+    response = make_query_request(signoz, token, start_ms, end_ms, [query])
+    assert response.status_code == HTTPStatus.OK
+
+    data = response.json()
+    result_values = sorted(get_series_values(data, "A"), key=lambda x: x["timestamp"])
+    assert len(result_values) == 59
+    assert result_values[0]["value"] == first_value
+    assert result_values[-1]["value"] == last_value
+
+@pytest.mark.parametrize(
+    "space_agg, zeroth_value, first_value, last_value",
+    [
+        ("p50", 500, 818.182, 550.725),
+        ("p75", 750, 3000, 826.087),
+        ("p90", 900, 6400, 991.304),
+        ("p95", 950, 8000, 4200),
+        ("p99", 990, 8000, 8000),
+    ],
+)
+def test_histogram_percentile_for_delta_service(
+    signoz: types.SigNoz,
+    create_user_admin: None,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+    insert_metrics: Callable[[List[Metrics]], None],
+    space_agg: str,
+    zeroth_value: float,
+    first_value: float,
+    last_value: float,
+) -> None:
+    now = datetime.now(tz=timezone.utc).replace(second=0, microsecond=0)
+    start_ms = int((now - timedelta(minutes=65)).timestamp() * 1000)
+    end_ms = int(now.timestamp() * 1000)
+    metric_name = f"test_{space_agg}_bucket"
+
+    metrics = Metrics.load_from_file(
+        FILE,
+        base_time=now - timedelta(minutes=60),
+        metric_name_override=metric_name,
+    )
+    insert_metrics(metrics)
+
+    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
+    query = build_builder_query(
+        "A",
+        metric_name,
+        "doesnotreallymatter",
+        space_agg,
+        filter_expression='service = "web"',
+    )
+
+    response = make_query_request(signoz, token, start_ms, end_ms, [query])
+    assert response.status_code == HTTPStatus.OK
+
+    data = response.json()
+    result_values = sorted(get_series_values(data, "A"), key=lambda x: x["timestamp"])
+    assert len(result_values) == 60
+    assert result_values[0]["value"] == zeroth_value
+    assert result_values[1]["value"] == first_value
+    assert result_values[-1]["value"] == last_value