Merge branch 'main' of https://github.com/SigNoz/signoz into feat/bar-panel-tests

* chore: refactored the config builder and added base config builder

* chore: added a common chart wrapper

* chore: tsc fix

* fix: pr review changes

* fix: pr review changes

* chore: added different tooltips

* chore: removed dayjs extention

* feat: added new barpanel component

* fix: added fix for pr review changes

* chore: added support for bar alignment configuration

* chore: updated structure for bar panel

* chore: pr review fix

frontend/src/api/querySuggestions/getKeySuggestions.ts

@@ -15,8 +15,6 @@ export const getKeySuggestions = (
 		fieldContext = '',
 		fieldDataType = '',
 		signalSource = '',
-		startUnixMilli = '',
-		endUnixMilli = '',
 	} = props;
 
 	const encodedSignal = encodeURIComponent(signal);
@@ -26,14 +24,7 @@ export const getKeySuggestions = (
 	const encodedFieldDataType = encodeURIComponent(fieldDataType);
 	const encodedSource = encodeURIComponent(signalSource);
 
-	let url = `/fields/keys?signal=${encodedSignal}&searchText=${encodedSearchText}&metricName=${encodedMetricName}&fieldContext=${encodedFieldContext}&fieldDataType=${encodedFieldDataType}&source=${encodedSource}`;
-
-	if (startUnixMilli !== undefined) {
-		url += `&startUnixMilli=${startUnixMilli}`;
-	}
-	if (endUnixMilli !== undefined) {
-		url += `&endUnixMilli=${endUnixMilli}`;
-	}
-
-	return axios.get(url);
+	return axios.get(
+		`/fields/keys?signal=${encodedSignal}&searchText=${encodedSearchText}&metricName=${encodedMetricName}&fieldContext=${encodedFieldContext}&fieldDataType=${encodedFieldDataType}&source=${encodedSource}`,
+	);
 };

frontend/src/api/querySuggestions/getValueSuggestion.ts

@@ -8,16 +8,7 @@ import {
 export const getValueSuggestions = (
 	props: QueryKeyValueRequestProps,
 ): Promise<AxiosResponse<QueryKeyValueSuggestionsResponseProps>> => {
-	const {
-		signal,
-		key,
-		searchText,
-		signalSource,
-		metricName,
-		startUnixMilli,
-		endUnixMilli,
-		existingQuery,
-	} = props;
+	const { signal, key, searchText, signalSource, metricName } = props;
 
 	const encodedSignal = encodeURIComponent(signal);
 	const encodedKey = encodeURIComponent(key);
@@ -25,17 +16,7 @@ export const getValueSuggestions = (
 	const encodedSearchText = encodeURIComponent(searchText);
 	const encodedSource = encodeURIComponent(signalSource || '');
 
-	let url = `/fields/values?signal=${encodedSignal}&name=${encodedKey}&searchText=${encodedSearchText}&metricName=${encodedMetricName}&source=${encodedSource}`;
-
-	if (startUnixMilli !== undefined) {
-		url += `&startUnixMilli=${startUnixMilli}`;
-	}
-	if (endUnixMilli !== undefined) {
-		url += `&endUnixMilli=${endUnixMilli}`;
-	}
-	if (existingQuery) {
-		url += `&existingQuery=${encodeURIComponent(existingQuery)}`;
-	}
-
-	return axios.get(url);
+	return axios.get(
+		`/fields/values?signal=${encodedSignal}&name=${encodedKey}&searchText=${encodedSearchText}&metricName=${encodedMetricName}&source=${encodedSource}`,
+	);
 };

frontend/src/components/OrderBy/ListViewOrderBy.tsx

@@ -1,12 +1,9 @@
-import { useEffect, useMemo, useRef, useState } from 'react';
+import { useEffect, useRef, useState } from 'react';
 import { useQuery } from 'react-query';
-import { useSelector } from 'react-redux';
 import { Select, Spin } from 'antd';
 import { getKeySuggestions } from 'api/querySuggestions/getKeySuggestions';
-import { AppState } from 'store/reducers';
 import { QueryKeyDataSuggestionsProps } from 'types/api/querySuggestions/types';
 import { DataSource } from 'types/common/queryBuilder';
-import { GlobalReducer } from 'types/reducer/globalTime';
 
 import './ListViewOrderBy.styles.scss';
 
@@ -37,35 +34,13 @@ function ListViewOrderBy({
 	>([]);
 	const debounceTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
 
-	// Get time range from Redux global state
-	const globalTime = useSelector<AppState, GlobalReducer>(
-		(state) => state.globalTime,
-	);
-
-	// Convert nanoseconds to milliseconds - use useMemo with both deps to avoid multiple updates
-	const timeRange = useMemo(
-		() => ({
-			startUnixMilli: Math.floor(globalTime.minTime / 1000000),
-			endUnixMilli: Math.floor(globalTime.maxTime / 1000000),
-		}),
-		[globalTime.minTime, globalTime.maxTime],
-	);
-
 	// Fetch key suggestions based on debounced input
 	const { data, isLoading } = useQuery({
-		queryKey: [
-			'orderByKeySuggestions',
-			dataSource,
-			debouncedInput,
-			timeRange.startUnixMilli,
-			timeRange.endUnixMilli,
-		],
+		queryKey: ['orderByKeySuggestions', dataSource, debouncedInput],
 		queryFn: async () => {
 			const response = await getKeySuggestions({
 				signal: dataSource,
 				searchText: debouncedInput,
-				startUnixMilli: timeRange.startUnixMilli,
-				endUnixMilli: timeRange.endUnixMilli,
 			});
 			return response.data;
 		},

frontend/src/components/QueryBuilderV2/QueryV2/QuerySearch/QuerySearch.tsx

@@ -1,7 +1,6 @@
 /* eslint-disable sonarjs/no-identical-functions */
 /* eslint-disable sonarjs/cognitive-complexity */
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
-import { useSelector } from 'react-redux';
 import { CheckCircleFilled } from '@ant-design/icons';
 import {
 	autocompletion,
@@ -34,8 +33,6 @@ import { useIsDarkMode } from 'hooks/useDarkMode';
 import useDebounce from 'hooks/useDebounce';
 import { debounce, isNull } from 'lodash-es';
 import { Info, TriangleAlert } from 'lucide-react';
-import { useDashboard } from 'providers/Dashboard/Dashboard';
-import { AppState } from 'store/reducers';
 import {
 	IDetailedError,
 	IQueryContext,
@@ -44,7 +41,6 @@ import {
 import { IBuilderQuery } from 'types/api/queryBuilder/queryBuilderData';
 import { QueryKeyDataSuggestionsProps } from 'types/api/querySuggestions/types';
 import { DataSource } from 'types/common/queryBuilder';
-import { GlobalReducer } from 'types/reducer/globalTime';
 import {
 	getCurrentValueIndexAtCursor,
 	getQueryContextAtCursor,
@@ -116,20 +112,6 @@ function QuerySearch({
 	const [isFocused, setIsFocused] = useState(false);
 	const editorRef = useRef<EditorView | null>(null);
 
-	// Get time range from Redux global state
-	const globalTime = useSelector<AppState, GlobalReducer>(
-		(state) => state.globalTime,
-	);
-
-	// Convert nanoseconds to milliseconds - use useMemo with both deps to avoid multiple updates
-	const timeRange = useMemo(
-		() => ({
-			startUnixMilli: Math.floor(globalTime.minTime / 1000000),
-			endUnixMilli: Math.floor(globalTime.maxTime / 1000000),
-		}),
-		[globalTime.minTime, globalTime.maxTime],
-	);
-
 	const handleQueryValidation = useCallback((newExpression: string): void => {
 		try {
 			const validationResponse = validateQuery(newExpression);
@@ -288,9 +270,8 @@ function QuerySearch({
 				searchText: searchText || '',
 				metricName: debouncedMetricName ?? undefined,
 				signalSource: signalSource as 'meter' | '',
-				startUnixMilli: timeRange.startUnixMilli,
-				endUnixMilli: timeRange.endUnixMilli,
 			});
+
 			if (response.data.data) {
 				const { keys } = response.data.data;
 				const options = generateOptions(keys);
@@ -320,8 +301,6 @@ function QuerySearch({
 			queryData.aggregateAttribute?.key,
 			signalSource,
 			hardcodedAttributeKeys,
-			timeRange.startUnixMilli,
-			timeRange.endUnixMilli,
 		],
 	);
 
@@ -334,12 +313,7 @@ function QuerySearch({
 		setKeySuggestions([]);
 		debouncedFetchKeySuggestions();
 		// eslint-disable-next-line react-hooks/exhaustive-deps
-	}, [
-		dataSource,
-		debouncedMetricName,
-		timeRange.startUnixMilli,
-		timeRange.endUnixMilli,
-	]);
+	}, [dataSource, debouncedMetricName]);
 
 	// Add a state for tracking editing mode
 	const [editingMode, setEditingMode] = useState<
@@ -457,7 +431,6 @@ function QuerySearch({
 			}
 
 			const sanitizedSearchText = searchText ? searchText?.trim() : '';
-			const existingQuery = queryData.filter?.expression || '';
 
 			try {
 				const response = await getValueSuggestions({
@@ -466,10 +439,9 @@ function QuerySearch({
 					signal: dataSource,
 					signalSource: signalSource as 'meter' | '',
 					metricName: debouncedMetricName ?? undefined,
-					startUnixMilli: timeRange.startUnixMilli,
-					endUnixMilli: timeRange.endUnixMilli,
-					existingQuery,
-				}); // Skip updates if component unmounted or key changed
+				});
+
+				// Skip updates if component unmounted or key changed
 				if (
 					!isMountedRef.current ||
 					lastKeyRef.current !== key ||
@@ -481,10 +453,10 @@ function QuerySearch({
 				// Process the response data
 				const responseData = response.data as any;
 				const values = responseData.data?.values || {};
-				const relatedValues = values.relatedValues || [];
-				const stringValues =
-					relatedValues.length > 0 ? relatedValues : values.stringValues || [];
-				const numberValues = values.numberValues || []; // Generate options from string values - explicitly handle empty strings
+				const stringValues = values.stringValues || [];
+				const numberValues = values.numberValues || [];
+
+				// Generate options from string values - explicitly handle empty strings
 				const stringOptions = stringValues
 					// Strict filtering for empty string - we'll handle it as a special case if needed
 					.filter(
@@ -556,14 +528,11 @@ function QuerySearch({
 		},
 		[
 			activeKey,
-			isLoadingSuggestions,
-			queryData.filter?.expression,
-			toggleSuggestions,
 			dataSource,
-			signalSource,
+			isLoadingSuggestions,
 			debouncedMetricName,
-			timeRange.startUnixMilli,
-			timeRange.endUnixMilli,
+			signalSource,
+			toggleSuggestions,
 		],
 	);
 
@@ -1280,17 +1249,19 @@ function QuerySearch({
 		if (!queryContext) {
 			return;
 		}
-		// Only trigger suggestions and fetch if editor is focused (i.e., user is interacting)
-		if (isFocused && editorRef.current) {
+		// Trigger suggestions based on context
+		if (editorRef.current) {
 			toggleSuggestions(10);
-			// Handle value suggestions for value context
-			if (queryContext.isInValue) {
-				const { keyToken, currentToken } = queryContext;
-				const key = keyToken || currentToken;
-				// Only fetch if needed and if we have a valid key
-				if (key && key !== activeKey && !isLoadingSuggestions) {
-					fetchValueSuggestions({ key });
-				}
+		}
+
+		// Handle value suggestions for value context
+		if (queryContext.isInValue) {
+			const { keyToken, currentToken } = queryContext;
+			const key = keyToken || currentToken;
+
+			// Only fetch if needed and if we have a valid key
+			if (key && key !== activeKey && !isLoadingSuggestions) {
+				fetchValueSuggestions({ key });
 			}
 		}
 	}, [
@@ -1299,7 +1270,6 @@ function QuerySearch({
 		isLoadingSuggestions,
 		activeKey,
 		fetchValueSuggestions,
-		isFocused,
 	]);
 
 	const getTooltipContent = (): JSX.Element => (

frontend/src/components/QuickFilters/FilterRenderers/Checkbox/Checkbox.styles.scss

@@ -138,93 +138,6 @@
 			cursor: pointer;
 		}
 	}
-
-	.search-prompt {
-		display: flex;
-		align-items: center;
-		justify-content: center;
-		gap: 8px;
-		padding: 10px 12px;
-		margin-top: 4px;
-		border: 1px dashed var(--bg-amber-500);
-		border-radius: 10px;
-		color: var(--bg-amber-200);
-		background: linear-gradient(
-			90deg,
-			var(--bg-ink-500) 0%,
-			var(--bg-ink-400) 100%
-		);
-		cursor: pointer;
-		transition: all 0.16s ease, transform 0.12s ease;
-		text-align: left;
-		box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
-
-		&:hover {
-			background: linear-gradient(
-				90deg,
-				var(--bg-ink-400) 0%,
-				var(--bg-ink-300) 100%
-			);
-			box-shadow: 0 4px 18px rgba(0, 0, 0, 0.45);
-		}
-
-		&:active {
-			transform: translateY(1px);
-		}
-
-		&__icon {
-			color: var(--bg-amber-400);
-			flex-shrink: 0;
-		}
-
-		&__text {
-			display: flex;
-			flex-direction: column;
-			gap: 2px;
-		}
-
-		&__title {
-			color: var(--bg-amber-200);
-		}
-
-		&__subtitle {
-			color: var(--bg-amber-300);
-			font-size: 12px;
-		}
-	}
-	.lightMode & {
-		.search-prompt {
-			border: 1px dashed var(--bg-amber-500);
-			color: var(--bg-amber-800);
-			background: linear-gradient(
-				90deg,
-				var(--bg-vanilla-200) 0%,
-				var(--bg-vanilla-100) 100%
-			);
-			box-shadow: 0 2px 12px rgba(184, 107, 0, 0.08);
-
-			&:hover {
-				background: linear-gradient(
-					90deg,
-					var(--bg-vanilla-100) 0%,
-					var(--bg-vanilla-50) 100%
-				);
-				box-shadow: 0 4px 16px rgba(184, 107, 0, 0.15);
-			}
-
-			&__icon {
-				color: var(--bg-amber-600);
-			}
-
-			&__title {
-				color: var(--bg-amber-800);
-			}
-
-			&__subtitle {
-				color: var(--bg-amber-800);
-			}
-		}
-	}
 	.go-to-docs {
 		display: flex;
 		flex-direction: column;

frontend/src/components/QuickFilters/FilterRenderers/Checkbox/Checkbox.tsx

@@ -2,16 +2,8 @@
 /* eslint-disable sonarjs/no-identical-functions */
 /* eslint-disable jsx-a11y/no-static-element-interactions */
 /* eslint-disable jsx-a11y/click-events-have-key-events */
-import {
-	Fragment,
-	useCallback,
-	useEffect,
-	useMemo,
-	useRef,
-	useState,
-} from 'react';
-import { useSelector } from 'react-redux';
-import { Button, Checkbox, Input, InputRef, Skeleton, Typography } from 'antd';
+import { Fragment, useMemo, useState } from 'react';
+import { Button, Checkbox, Input, Skeleton, Typography } from 'antd';
 import cx from 'classnames';
 import { removeKeysFromExpression } from 'components/QueryBuilderV2/utils';
 import {
@@ -19,18 +11,21 @@ import {
 	QuickFiltersSource,
 } from 'components/QuickFilters/types';
 import { OPERATORS } from 'constants/antlrQueryConstants';
-import { PANEL_TYPES } from 'constants/queryBuilder';
+import {
+	DATA_TYPE_VS_ATTRIBUTE_VALUES_KEY,
+	PANEL_TYPES,
+} from 'constants/queryBuilder';
 import { DEBOUNCE_DELAY } from 'constants/queryBuilderFilterConfig';
 import { getOperatorValue } from 'container/QueryBuilder/filters/QueryBuilderSearch/utils';
+import { useGetAggregateValues } from 'hooks/queryBuilder/useGetAggregateValues';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import { useGetQueryKeyValueSuggestions } from 'hooks/querySuggestions/useGetQueryKeyValueSuggestions';
 import useDebouncedFn from 'hooks/useDebouncedFunction';
 import { cloneDeep, isArray, isEqual, isFunction } from 'lodash-es';
-import { AlertTriangle, ChevronDown, ChevronRight } from 'lucide-react';
-import { AppState } from 'store/reducers';
+import { ChevronDown, ChevronRight } from 'lucide-react';
+import { DataTypes } from 'types/api/queryBuilder/queryAutocompleteResponse';
 import { Query, TagFilterItem } from 'types/api/queryBuilder/queryBuilderData';
 import { DataSource } from 'types/common/queryBuilder';
-import { GlobalReducer } from 'types/reducer/globalTime';
 import { v4 as uuid } from 'uuid';
 
 import LogsQuickFilterEmptyState from './LogsQuickFilterEmptyState';
@@ -73,15 +68,6 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 		panelType,
 	} = useQueryBuilder();
 
-	// Get time range from Redux global state
-	const { maxTime, minTime } = useSelector<AppState, GlobalReducer>(
-		(state) => state.globalTime,
-	);
-
-	// Convert nanoseconds to milliseconds
-	const startUnixMilli = useMemo(() => Math.floor(minTime / 1000000), [minTime]);
-	const endUnixMilli = useMemo(() => Math.floor(maxTime / 1000000), [maxTime]);
-
 	// Determine if we're in ListView mode
 	const isListView = panelType === PANEL_TYPES.LIST;
 	// In ListView mode, use index 0 for most sources; for TRACES_EXPLORER, use lastUsedQuery
@@ -95,12 +81,6 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 		return lastUsedQuery || 0;
 	}, [isListView, source, lastUsedQuery]);
 
-	// Extract current filter expression for the active query
-	const currentFilterExpression = useMemo(() => {
-		const queryData = currentQuery.builder.queryData?.[activeQueryIndex];
-		return queryData?.filter?.expression || '';
-	}, [currentQuery.builder.queryData, activeQueryIndex]);
-
 	// Check if this filter has active filters in the query
 	const isSomeFilterPresentForCurrentAttribute = useMemo(
 		() =>
@@ -132,120 +112,47 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 		filter.defaultOpen,
 	]);
 
+	const { data, isLoading } = useGetAggregateValues(
+		{
+			aggregateOperator: filter.aggregateOperator || 'noop',
+			dataSource: filter.dataSource || DataSource.LOGS,
+			aggregateAttribute: filter.aggregateAttribute || '',
+			attributeKey: filter.attributeKey.key,
+			filterAttributeKeyDataType: filter.attributeKey.dataType || DataTypes.EMPTY,
+			tagType: filter.attributeKey.type || '',
+			searchText: searchText ?? '',
+		},
+		{
+			enabled: isOpen && source !== QuickFiltersSource.METER_EXPLORER,
+			keepPreviousData: true,
+		},
+	);
+
 	const {
 		data: keyValueSuggestions,
 		isLoading: isLoadingKeyValueSuggestions,
-		refetch: refetchKeyValueSuggestions,
 	} = useGetQueryKeyValueSuggestions({
 		key: filter.attributeKey.key,
 		signal: filter.dataSource || DataSource.LOGS,
-		signalSource: source === QuickFiltersSource.METER_EXPLORER ? 'meter' : '',
-		startUnixMilli,
-		endUnixMilli,
-		searchText: searchText || '',
-		existingQuery: currentFilterExpression,
+		signalSource: 'meter',
 		options: {
-			enabled: isOpen,
+			enabled: isOpen && source === QuickFiltersSource.METER_EXPLORER,
 			keepPreviousData: true,
 		},
 	});
 
-	const searchInputRef = useRef<InputRef | null>(null);
-	const searchContainerRef = useRef<HTMLDivElement | null>(null);
-	const previousFiltersItemsRef = useRef(
-		currentQuery.builder.queryData?.[activeQueryIndex]?.filters?.items,
-	);
-
-	// Refetch when other filters change (not this filter)
-	// Watch for when filters.items is different from previous value, indicating other filters changed
-	useEffect(() => {
-		const currentFiltersItems =
-			currentQuery.builder.queryData?.[activeQueryIndex]?.filters?.items;
-
-		const previousFiltersItems = previousFiltersItemsRef.current;
-
-		// Check if filters items have changed (not the same)
-		const filtersChanged = !isEqual(previousFiltersItems, currentFiltersItems);
-
-		if (isOpen && filtersChanged) {
-			// Check if OTHER filters (not this filter) have changed
-			const currentOtherFilters = currentFiltersItems?.filter(
-				(item) => !isEqual(item.key?.key, filter.attributeKey.key),
-			);
-			const previousOtherFilters = previousFiltersItems?.filter(
-				(item) => !isEqual(item.key?.key, filter.attributeKey.key),
-			);
-
-			// Refetch if other filters changed (not just this filter's values)
-			const otherFiltersChanged = !isEqual(
-				currentOtherFilters,
-				previousOtherFilters,
-			);
-
-			// Only update ref if we have valid API data or if filters actually changed
-			// Don't update if search returned 0 results to preserve unchecked values
-			const hasValidData = keyValueSuggestions && !isLoadingKeyValueSuggestions;
-			if (otherFiltersChanged || hasValidData) {
-				previousFiltersItemsRef.current = currentFiltersItems;
-			}
-
-			if (otherFiltersChanged) {
-				refetchKeyValueSuggestions();
-			}
-		} else {
-			previousFiltersItemsRef.current = currentFiltersItems;
-		}
-	}, [
-		activeQueryIndex,
-		isOpen,
-		refetchKeyValueSuggestions,
-		filter.attributeKey.key,
-		currentQuery.builder.queryData,
-		keyValueSuggestions,
-		isLoadingKeyValueSuggestions,
-	]);
-
-	const handleSearchPromptClick = useCallback((): void => {
-		if (searchContainerRef.current) {
-			searchContainerRef.current.scrollIntoView({
-				behavior: 'smooth',
-				block: 'center',
-			});
-		}
-		if (searchInputRef.current) {
-			setTimeout(() => searchInputRef.current?.focus({ cursor: 'end' }), 120);
-		}
-	}, []);
-
-	const isDataComplete = useMemo(() => {
-		if (keyValueSuggestions) {
-			// eslint-disable-next-line @typescript-eslint/no-explicit-any
-			const responseData = keyValueSuggestions?.data as any;
-			return responseData.data?.complete || false;
-		}
-		return false;
-	}, [keyValueSuggestions]);
-
-	const previousAttributeValuesRef = useRef<string[]>([]);
-
 	const attributeValues: string[] = useMemo(() => {
-		// const dataType = filter.attributeKey.dataType || DataTypes.String;
+		const dataType = filter.attributeKey.dataType || DataTypes.String;
 
-		if (keyValueSuggestions) {
-			// Process the response data for all pages
-			// eslint-disable-next-line @typescript-eslint/no-explicit-any
+		if (source === QuickFiltersSource.METER_EXPLORER && keyValueSuggestions) {
+			// Process the response data
 			const responseData = keyValueSuggestions?.data as any;
 			const values = responseData.data?.values || {};
-			const relatedValues = values.relatedValues || [];
 			const stringValues = values.stringValues || [];
 			const numberValues = values.numberValues || [];
 
-			// Use relatedValues if present (these are the checked/selected values)
-			// Otherwise fallback to stringValues
-			const valuesToUse = relatedValues.length > 0 ? relatedValues : stringValues;
-
 			// Generate options from string values - explicitly handle empty strings
-			const stringOptions = valuesToUse
+			const stringOptions = stringValues
 				// Strict filtering for empty string - we'll handle it as a special case if needed
 				.filter(
 					(value: string | null | undefined): value is string =>
@@ -260,26 +167,15 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 				)
 				.map((value: number) => value.toString());
 
-			// Combine checked values with previously visible unchecked values
-			let finalValues = [...stringOptions, ...numberOptions];
-
-			// When we have search results (relatedValues or stringValues), preserve previously visible unchecked values
-			// Only update ref if we have actual valid data (not empty search results)
-			if (finalValues.length > 0) {
-				const previousValues = previousAttributeValuesRef.current || [];
-				// Keep values that were previously visible but not in new results
-				const preservedValues = previousValues.filter(
-					(val) => !finalValues.includes(val),
-				);
-				finalValues = Array.from(new Set([...finalValues, ...preservedValues]));
-				// Store current values for next refetch only if we have valid data
-				previousAttributeValuesRef.current = finalValues;
-			}
-
-			return finalValues;
+			// Combine all options and make sure we don't have duplicate labels
+			return [...stringOptions, ...numberOptions];
 		}
-		return [];
-	}, [keyValueSuggestions]);
+
+		const key = DATA_TYPE_VS_ATTRIBUTE_VALUES_KEY[dataType];
+		return (data?.payload?.[key] || []).filter(
+			(val) => val !== undefined && val !== null,
+		);
+	}, [data?.payload, filter.attributeKey.dataType, keyValueSuggestions, source]);
 
 	const setSearchTextDebounced = useDebouncedFn((...args) => {
 		setSearchText(args[0] as string);
@@ -353,27 +249,23 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 	const isMultipleValuesTrueForTheKey =
 		Object.values(currentFilterState).filter((val) => val).length > 1;
 
-	// Sort checked items to the top; always show unchecked items beneath, regardless of pagination
-	const {
-		visibleCheckedValues,
-		uncheckedValues,
-		visibleCheckedCount,
-		hasMoreChecked,
-	} = useMemo(() => {
+	// Sort checked items to the top, then unchecked items
+	const currentAttributeKeys = useMemo(() => {
 		const checkedValues = attributeValues.filter(
 			(val) => currentFilterState[val],
 		);
-		const unchecked = attributeValues.filter((val) => !currentFilterState[val]);
-		const visibleChecked = checkedValues.slice(0, visibleItemsCount);
-
-		return {
-			visibleCheckedValues: visibleChecked,
-			uncheckedValues: unchecked,
-			visibleCheckedCount: visibleChecked.length,
-			hasMoreChecked: checkedValues.length > visibleChecked.length,
-		};
+		const uncheckedValues = attributeValues.filter(
+			(val) => !currentFilterState[val],
+		);
+		return [...checkedValues, ...uncheckedValues].slice(0, visibleItemsCount);
 	}, [attributeValues, currentFilterState, visibleItemsCount]);
 
+	// Count of checked values in the currently visible items
+	const checkedValuesCount = useMemo(
+		() => currentAttributeKeys.filter((val) => currentFilterState[val]).length,
+		[currentAttributeKeys, currentFilterState],
+	);
+
 	const handleClearFilterAttribute = (): void => {
 		const preparedQuery: Query = {
 			...currentQuery,
@@ -701,90 +593,35 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 					)}
 				</section>
 			</section>
-			{isOpen && isLoadingKeyValueSuggestions && !attributeValues.length && (
-				<section className="loading">
-					<Skeleton paragraph={{ rows: 4 }} />
-				</section>
-			)}
-			{isOpen && !isLoadingKeyValueSuggestions && (
+			{isOpen &&
+				(isLoading || isLoadingKeyValueSuggestions) &&
+				!attributeValues.length && (
+					<section className="loading">
+						<Skeleton paragraph={{ rows: 4 }} />
+					</section>
+				)}
+			{isOpen && !isLoading && !isLoadingKeyValueSuggestions && (
 				<>
 					{!isEmptyStateWithDocsEnabled && (
-						<section className="search" ref={searchContainerRef}>
+						<section className="search">
 							<Input
 								placeholder="Filter values"
 								onChange={(e): void => setSearchTextDebounced(e.target.value)}
 								disabled={isFilterDisabled}
-								ref={searchInputRef}
 							/>
 						</section>
 					)}
 					{attributeValues.length > 0 ? (
 						<section className="values">
-							{visibleCheckedValues.map((value: string) => (
+							{currentAttributeKeys.map((value: string, index: number) => (
 								<Fragment key={value}>
-									<div className="value">
-										<Checkbox
-											onChange={(e): void => onChange(value, e.target.checked, false)}
-											checked={currentFilterState[value]}
-											disabled={isFilterDisabled}
-											rootClassName="check-box"
-										/>
-
+									{index === checkedValuesCount && checkedValuesCount > 0 && (
 										<div
-											className={cx(
-												'checkbox-value-section',
-												isFilterDisabled ? 'filter-disabled' : '',
-											)}
-											onClick={(): void => {
-												if (isFilterDisabled) {
-													return;
-												}
-												onChange(value, currentFilterState[value], true);
-											}}
-										>
-											<div className={`${filter.title} label-${value}`} />
-											{filter.customRendererForValue ? (
-												filter.customRendererForValue(value)
-											) : (
-												<Typography.Text
-													className="value-string"
-													ellipsis={{ tooltip: { placement: 'top' } }}
-												>
-													{String(value)}
-												</Typography.Text>
-											)}
-											<Button type="text" className="only-btn">
-												{isSomeFilterPresentForCurrentAttribute
-													? currentFilterState[value] && !isMultipleValuesTrueForTheKey
-														? 'All'
-														: 'Only'
-													: 'Only'}
-											</Button>
-											<Button type="text" className="toggle-btn">
-												Toggle
-											</Button>
-										</div>
-									</div>
-								</Fragment>
-							))}
-
-							{hasMoreChecked && (
-								<section className="show-more">
-									<Typography.Text
-										className="show-more-text"
-										onClick={(): void => setVisibleItemsCount((prev) => prev + 10)}
-									>
-										Show More...
-									</Typography.Text>
-								</section>
-							)}
-
-							{visibleCheckedCount > 0 && uncheckedValues.length > 0 && (
-								<div className="filter-separator" data-testid="filter-separator" />
-							)}
-
-							{uncheckedValues.map((value: string) => (
-								<Fragment key={value}>
+											key="separator"
+											className="filter-separator"
+											data-testid="filter-separator"
+										/>
+									)}
 									<div className="value">
 										<Checkbox
 											onChange={(e): void => onChange(value, e.target.checked, false)}
@@ -844,18 +681,16 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 							<Typography.Text>No values found</Typography.Text>{' '}
 						</section>
 					)}
-					{visibleItemsCount >= attributeValues?.length &&
-						attributeValues?.length > 0 &&
-						!isDataComplete && (
-							<section className="search-prompt" onClick={handleSearchPromptClick}>
-								<AlertTriangle size={16} className="search-prompt__icon" />
-								<span className="search-prompt__text">
-									<Typography.Text className="search-prompt__subtitle">
-										Tap to search and load more suggestions.
-									</Typography.Text>
-								</span>
-							</section>
-						)}
+					{visibleItemsCount < attributeValues?.length && (
+						<section className="show-more">
+							<Typography.Text
+								className="show-more-text"
+								onClick={(): void => setVisibleItemsCount((prev) => prev + 10)}
+							>
+								Show More...
+							</Typography.Text>
+						</section>
+					)}
 				</>
 			)}
 		</div>

frontend/src/components/QuickFilters/tests/QuickFilters.test.tsx

@@ -1,6 +1,5 @@
 import { ENVIRONMENT } from 'constants/env';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
-import { useGetQueryKeyValueSuggestions } from 'hooks/querySuggestions/useGetQueryKeyValueSuggestions';
 import {
 	otherFiltersResponse,
 	quickFiltersAttributeValuesResponse,
@@ -20,21 +19,17 @@ jest.mock('hooks/queryBuilder/useQueryBuilder', () => ({
 	useQueryBuilder: jest.fn(),
 }));
 
-jest.mock('hooks/querySuggestions/useGetQueryKeyValueSuggestions');
-
 const handleFilterVisibilityChange = jest.fn();
 const redirectWithQueryBuilderData = jest.fn();
 const putHandler = jest.fn();
 
-const mockUseGetQueryKeyValueSuggestions = jest.mocked(
-	useGetQueryKeyValueSuggestions,
-);
-
 const BASE_URL = ENVIRONMENT.baseURL;
 const SIGNAL = SignalType.LOGS;
 const quickFiltersListURL = `${BASE_URL}/api/v1/orgs/me/filters/${SIGNAL}`;
 const saveQuickFiltersURL = `${BASE_URL}/api/v1/orgs/me/filters`;
 const quickFiltersSuggestionsURL = `${BASE_URL}/api/v3/filter_suggestions`;
+const quickFiltersAttributeValuesURL = `${BASE_URL}/api/v3/autocomplete/attribute_values`;
+const fieldsValuesURL = `${BASE_URL}/api/v1/fields/values`;
 
 const FILTER_OS_DESCRIPTION = 'os.description';
 const FILTER_K8S_DEPLOYMENT_NAME = 'k8s.deployment.name';
@@ -58,7 +53,10 @@ const setupServer = (): void => {
 			putHandler(await req.json());
 			return res(ctx.status(200), ctx.json({}));
 		}),
-		rest.get('*/api/v1/fields/values*', (_req, res, ctx) =>
+		rest.get(quickFiltersAttributeValuesURL, (_req, res, ctx) =>
+			res(ctx.status(200), ctx.json(quickFiltersAttributeValuesResponse)),
+		),
+		rest.get(fieldsValuesURL, (_req, res, ctx) =>
 			res(ctx.status(200), ctx.json(quickFiltersAttributeValuesResponse)),
 		),
 	);
@@ -106,24 +104,14 @@ beforeEach(() => {
 				queryData: [
 					{
 						queryName: QUERY_NAME,
-						filters: { items: [], op: 'AND' },
-						filter: { expression: '' },
+						filters: { items: [{ key: 'test', value: 'value' }] },
 					},
 				],
 			},
 		},
 		lastUsedQuery: 0,
-		panelType: 'logs',
 		redirectWithQueryBuilderData,
 	});
-
-	// Mock the hook to return data with mq-kafka
-	mockUseGetQueryKeyValueSuggestions.mockReturnValue({
-		data: quickFiltersAttributeValuesResponse,
-		isLoading: false,
-		refetch: jest.fn(),
-	} as any);
-
 	setupServer();
 });
 
@@ -236,9 +224,8 @@ describe('Quick Filters', () => {
 
 		render(<TestQuickFilters />);
 
-		// Wait for the filter to load with data
-		const target = await screen.findByText('mq-kafka', {}, { timeout: 5000 });
-
+		// Prefer role if possible; if label text isn’t wired to input, clicking the label text is OK
+		const target = await screen.findByText('mq-kafka');
 		await user.click(target);
 
 		await waitFor(() => {

frontend/src/container/DashboardContainer/visualization/charts/BarChart/BarChart.tsx

@@ -0,0 +1,45 @@
+import { useCallback } from 'react';
+import ChartWrapper from 'container/DashboardContainer/visualization/charts/ChartWrapper/ChartWrapper';
+import BarChartTooltip from 'lib/uPlotV2/components/Tooltip/BarChartTooltip';
+import {
+	BarTooltipProps,
+	TooltipRenderArgs,
+} from 'lib/uPlotV2/components/types';
+
+import { useBarChartStacking } from '../../hooks/useBarChartStacking';
+import { BarChartProps } from '../types';
+
+export default function BarChart(props: BarChartProps): JSX.Element {
+	const { children, isStackedBarChart, config, data, ...rest } = props;
+
+	const chartData = useBarChartStacking({
+		data,
+		isStackedBarChart,
+		config,
+	});
+
+	const renderTooltip = useCallback(
+		(props: TooltipRenderArgs): React.ReactNode => {
+			const tooltipProps: BarTooltipProps = {
+				...props,
+				timezone: rest.timezone,
+				yAxisUnit: rest.yAxisUnit,
+				decimalPrecision: rest.decimalPrecision,
+				isStackedBarChart: isStackedBarChart,
+			};
+			return <BarChartTooltip {...tooltipProps} />;
+		},
+		[rest.timezone, rest.yAxisUnit, rest.decimalPrecision, isStackedBarChart],
+	);
+
+	return (
+		<ChartWrapper
+			{...rest}
+			config={config}
+			data={chartData}
+			renderTooltip={renderTooltip}
+		>
+			{children}
+		</ChartWrapper>
+	);
+}

frontend/src/container/DashboardContainer/visualization/charts/utils/__tests__/stackUtils.test.ts

@@ -0,0 +1,117 @@
+import { AlignedData } from 'uplot';
+
+import { getInitialStackedBands, stack } from '../stackUtils';
+
+describe('stackUtils', () => {
+	describe('stack', () => {
+		const neverOmit = (): boolean => false;
+
+		it('preserves time axis as first row', () => {
+			const data: AlignedData = [
+				[100, 200, 300],
+				[1, 2, 3],
+				[4, 5, 6],
+			];
+			const { data: result } = stack(data, neverOmit);
+			expect(result[0]).toEqual([100, 200, 300]);
+		});
+
+		it('stacks value series cumulatively (last = raw, first = total)', () => {
+			// Time, then 3 value series. Stack order: last series stays raw, then we add upward.
+			const data: AlignedData = [
+				[0, 1, 2],
+				[1, 2, 3], // series 1
+				[4, 5, 6], // series 2
+				[7, 8, 9], // series 3
+			];
+			const { data: result } = stack(data, neverOmit);
+			// result[1] = s1+s2+s3, result[2] = s2+s3, result[3] = s3
+			expect(result[1]).toEqual([12, 15, 18]); // 1+4+7, 2+5+8, 3+6+9
+			expect(result[2]).toEqual([11, 13, 15]); // 4+7, 5+8, 6+9
+			expect(result[3]).toEqual([7, 8, 9]);
+		});
+
+		it('treats null values as 0 when stacking', () => {
+			const data: AlignedData = [
+				[0, 1],
+				[1, null],
+				[null, 10],
+			];
+			const { data: result } = stack(data, neverOmit);
+			expect(result[1]).toEqual([1, 10]); // total
+			expect(result[2]).toEqual([0, 10]); // last series with null→0
+		});
+
+		it('copies omitted series as-is without accumulating', () => {
+			// Omit series 2 (index 2); series 1 and 3 are stacked.
+			const data: AlignedData = [
+				[0, 1],
+				[10, 20], // series 1
+				[100, 200], // series 2 - omitted
+				[1, 2], // series 3
+			];
+			const omitSeries2 = (i: number): boolean => i === 2;
+			const { data: result } = stack(data, omitSeries2);
+			// series 3 raw: [1, 2]; series 2 omitted: [100, 200] as-is; series 1 stacked with s3: [11, 22]
+			expect(result[1]).toEqual([11, 22]); // 10+1, 20+2
+			expect(result[2]).toEqual([100, 200]); // copied, not stacked
+			expect(result[3]).toEqual([1, 2]);
+		});
+
+		it('returns bands between consecutive visible series when none omitted', () => {
+			const data: AlignedData = [
+				[0, 1],
+				[1, 2],
+				[3, 4],
+				[5, 6],
+			];
+			const { bands } = stack(data, neverOmit);
+			expect(bands).toEqual([{ series: [1, 2] }, { series: [2, 3] }]);
+		});
+
+		it('returns bands only between visible series when some are omitted', () => {
+			// 4 value series; omit index 2. Visible: 1, 3, 4. Bands: [1,3], [3,4]
+			const data: AlignedData = [[0], [1], [2], [3], [4]];
+			const omitSeries2 = (i: number): boolean => i === 2;
+			const { bands } = stack(data, omitSeries2);
+			expect(bands).toEqual([{ series: [1, 3] }, { series: [3, 4] }]);
+		});
+
+		it('returns empty bands when only one value series', () => {
+			const data: AlignedData = [
+				[0, 1],
+				[1, 2],
+			];
+			const { bands } = stack(data, neverOmit);
+			expect(bands).toEqual([]);
+		});
+	});
+
+	describe('getInitialStackedBands', () => {
+		it('returns one band between each consecutive pair for seriesCount 3', () => {
+			expect(getInitialStackedBands(3)).toEqual([
+				{ series: [1, 2] },
+				{ series: [2, 3] },
+			]);
+		});
+
+		it('returns empty array for seriesCount 0 or 1', () => {
+			expect(getInitialStackedBands(0)).toEqual([]);
+			expect(getInitialStackedBands(1)).toEqual([]);
+		});
+
+		it('returns single band for seriesCount 2', () => {
+			expect(getInitialStackedBands(2)).toEqual([{ series: [1, 2] }]);
+		});
+
+		it('returns bands [1,2], [2,3], ..., [n-1, n] for seriesCount n', () => {
+			const bands = getInitialStackedBands(5);
+			expect(bands).toEqual([
+				{ series: [1, 2] },
+				{ series: [2, 3] },
+				{ series: [3, 4] },
+				{ series: [4, 5] },
+			]);
+		});
+	});
+});

frontend/src/container/DashboardContainer/visualization/charts/utils/stackSeriesUtils.ts

@@ -0,0 +1,116 @@
+import uPlot, { AlignedData } from 'uplot';
+
+/**
+ * Stack data cumulatively (top-down: first series = top, last = bottom).
+ * When `omit(seriesIndex)` returns true, that series is excluded from stacking.
+ */
+export function stackSeries(
+	data: AlignedData,
+	omit: (seriesIndex: number) => boolean,
+): { data: AlignedData; bands: uPlot.Band[] } {
+	const timeAxis = data[0];
+	const pointCount = timeAxis.length;
+	const valueSeriesCount = data.length - 1; // exclude time axis
+
+	const stackedSeries = buildStackedSeries({
+		data,
+		valueSeriesCount,
+		pointCount,
+		omit,
+	});
+	const bands = buildFillBands(valueSeriesCount + 1, omit); // +1 for 1-based series indices
+
+	return {
+		data: [timeAxis, ...stackedSeries] as AlignedData,
+		bands,
+	};
+}
+
+interface BuildStackedSeriesParams {
+	data: AlignedData;
+	valueSeriesCount: number;
+	pointCount: number;
+	omit: (seriesIndex: number) => boolean;
+}
+
+/**
+ * Accumulate from last series upward: last series = raw values, first = total.
+ * Omitted series are copied as-is (no accumulation).
+ */
+function buildStackedSeries({
+	data,
+	valueSeriesCount,
+	pointCount,
+	omit,
+}: BuildStackedSeriesParams): (number | null)[][] {
+	const stackedSeries: (number | null)[][] = Array(valueSeriesCount);
+	const cumulativeSums = Array(pointCount).fill(0) as number[];
+
+	for (let seriesIndex = valueSeriesCount; seriesIndex >= 1; seriesIndex--) {
+		const rawValues = data[seriesIndex] as (number | null)[];
+
+		if (omit(seriesIndex)) {
+			stackedSeries[seriesIndex - 1] = rawValues;
+		} else {
+			stackedSeries[seriesIndex - 1] = rawValues.map((rawValue, pointIndex) => {
+				const numericValue = rawValue == null ? 0 : Number(rawValue);
+				return (cumulativeSums[pointIndex] += numericValue);
+			});
+		}
+	}
+
+	return stackedSeries;
+}
+
+/**
+ * Bands define fill between consecutive visible series for stacked appearance.
+ * uPlot format: [upperSeriesIdx, lowerSeriesIdx].
+ */
+function buildFillBands(
+	seriesLength: number,
+	omit: (seriesIndex: number) => boolean,
+): uPlot.Band[] {
+	const bands: uPlot.Band[] = [];
+
+	for (let seriesIndex = 1; seriesIndex < seriesLength; seriesIndex++) {
+		if (omit(seriesIndex)) {
+			continue;
+		}
+		const nextVisibleSeriesIndex = findNextVisibleSeriesIndex(
+			seriesLength,
+			seriesIndex,
+			omit,
+		);
+		if (nextVisibleSeriesIndex !== -1) {
+			bands.push({ series: [seriesIndex, nextVisibleSeriesIndex] });
+		}
+	}
+
+	return bands;
+}
+
+function findNextVisibleSeriesIndex(
+	seriesLength: number,
+	afterIndex: number,
+	omit: (seriesIndex: number) => boolean,
+): number {
+	for (let i = afterIndex + 1; i < seriesLength; i++) {
+		if (!omit(i)) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+/**
+ * Returns band indices for initial stacked state (no series omitted).
+ * Top-down: first series at top, band fills between consecutive series.
+ * uPlot band format: [upperSeriesIdx, lowerSeriesIdx].
+ */
+export function getInitialStackedBands(seriesCount: number): uPlot.Band[] {
+	const bands: uPlot.Band[] = [];
+	for (let seriesIndex = 1; seriesIndex < seriesCount; seriesIndex++) {
+		bands.push({ series: [seriesIndex, seriesIndex + 1] });
+	}
+	return bands;
+}

frontend/src/container/DashboardContainer/visualization/charts/utils/stackUtils.ts

@@ -0,0 +1,116 @@
+import uPlot, { AlignedData } from 'uplot';
+
+/**
+ * Stack data cumulatively (top-down: first series = top, last = bottom).
+ * When `omit(seriesIndex)` returns true, that series is excluded from stacking.
+ */
+export function stack(
+	data: AlignedData,
+	omit: (seriesIndex: number) => boolean,
+): { data: AlignedData; bands: uPlot.Band[] } {
+	const timeAxis = data[0];
+	const pointCount = timeAxis.length;
+	const valueSeriesCount = data.length - 1; // exclude time axis
+
+	const stackedSeries = buildStackedSeries({
+		data,
+		valueSeriesCount,
+		pointCount,
+		omit,
+	});
+	const bands = buildFillBands(valueSeriesCount + 1, omit); // +1 for 1-based series indices
+
+	return {
+		data: [timeAxis, ...stackedSeries] as AlignedData,
+		bands,
+	};
+}
+
+interface BuildStackedSeriesParams {
+	data: AlignedData;
+	valueSeriesCount: number;
+	pointCount: number;
+	omit: (seriesIndex: number) => boolean;
+}
+
+/**
+ * Accumulate from last series upward: last series = raw values, first = total.
+ * Omitted series are copied as-is (no accumulation).
+ */
+function buildStackedSeries({
+	data,
+	valueSeriesCount,
+	pointCount,
+	omit,
+}: BuildStackedSeriesParams): (number | null)[][] {
+	const stackedSeries: (number | null)[][] = Array(valueSeriesCount);
+	const cumulativeSums = Array(pointCount).fill(0) as number[];
+
+	for (let seriesIndex = valueSeriesCount; seriesIndex >= 1; seriesIndex--) {
+		const rawValues = data[seriesIndex] as (number | null)[];
+
+		if (omit(seriesIndex)) {
+			stackedSeries[seriesIndex - 1] = rawValues;
+		} else {
+			stackedSeries[seriesIndex - 1] = rawValues.map((rawValue, pointIndex) => {
+				const numericValue = rawValue == null ? 0 : Number(rawValue);
+				return (cumulativeSums[pointIndex] += numericValue);
+			});
+		}
+	}
+
+	return stackedSeries;
+}
+
+/**
+ * Bands define fill between consecutive visible series for stacked appearance.
+ * uPlot format: [upperSeriesIdx, lowerSeriesIdx].
+ */
+function buildFillBands(
+	seriesLength: number,
+	omit: (seriesIndex: number) => boolean,
+): uPlot.Band[] {
+	const bands: uPlot.Band[] = [];
+
+	for (let seriesIndex = 1; seriesIndex < seriesLength; seriesIndex++) {
+		if (omit(seriesIndex)) {
+			continue;
+		}
+		const nextVisibleSeriesIndex = findNextVisibleSeriesIndex(
+			seriesLength,
+			seriesIndex,
+			omit,
+		);
+		if (nextVisibleSeriesIndex !== -1) {
+			bands.push({ series: [seriesIndex, nextVisibleSeriesIndex] });
+		}
+	}
+
+	return bands;
+}
+
+function findNextVisibleSeriesIndex(
+	seriesLength: number,
+	afterIndex: number,
+	omit: (seriesIndex: number) => boolean,
+): number {
+	for (let i = afterIndex + 1; i < seriesLength; i++) {
+		if (!omit(i)) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+/**
+ * Returns band indices for initial stacked state (no series omitted).
+ * Top-down: first series at top, band fills between consecutive series.
+ * uPlot band format: [upperSeriesIdx, lowerSeriesIdx].
+ */
+export function getInitialStackedBands(seriesCount: number): uPlot.Band[] {
+	const bands: uPlot.Band[] = [];
+	for (let seriesIndex = 1; seriesIndex < seriesCount; seriesIndex++) {
+		bands.push({ series: [seriesIndex, seriesIndex + 1] });
+	}
+	return bands;
+}

frontend/src/container/DashboardContainer/visualization/hooks/__tests__/useBarChartStacking.test.ts

@@ -0,0 +1,313 @@
+import { renderHook } from '@testing-library/react';
+import uPlot from 'uplot';
+
+import type { UseBarChartStackingParams } from '../useBarChartStacking';
+import { useBarChartStacking } from '../useBarChartStacking';
+
+type MockConfig = { addHook: jest.Mock };
+
+function asConfig(c: MockConfig): UseBarChartStackingParams['config'] {
+	return (c as unknown) as UseBarChartStackingParams['config'];
+}
+
+function createMockConfig(): {
+	config: MockConfig;
+	invokeSetData: (plot: uPlot) => void;
+	invokeSetSeries: (
+		plot: uPlot,
+		seriesIndex: number | null,
+		opts: Partial<uPlot.Series> & { focus?: boolean },
+	) => void;
+	removeSetData: jest.Mock;
+	removeSetSeries: jest.Mock;
+} {
+	let setDataHandler: ((plot: uPlot) => void) | null = null;
+	let setSeriesHandler:
+		| ((plot: uPlot, seriesIndex: number | null, opts: uPlot.Series) => void)
+		| null = null;
+
+	const removeSetData = jest.fn();
+	const removeSetSeries = jest.fn();
+
+	const addHook = jest.fn(
+		(
+			hookName: string,
+			handler: (plot: uPlot, ...args: unknown[]) => void,
+		): (() => void) => {
+			if (hookName === 'setData') {
+				setDataHandler = handler as (plot: uPlot) => void;
+				return removeSetData;
+			}
+			if (hookName === 'setSeries') {
+				setSeriesHandler = handler as (
+					plot: uPlot,
+					seriesIndex: number | null,
+					opts: uPlot.Series,
+				) => void;
+				return removeSetSeries;
+			}
+			return jest.fn();
+		},
+	);
+
+	const config: MockConfig = { addHook };
+
+	const invokeSetData = (plot: uPlot): void => {
+		setDataHandler?.(plot);
+	};
+
+	const invokeSetSeries = (
+		plot: uPlot,
+		seriesIndex: number | null,
+		opts: Partial<uPlot.Series> & { focus?: boolean },
+	): void => {
+		setSeriesHandler?.(plot, seriesIndex, opts as uPlot.Series);
+	};
+
+	return {
+		config,
+		invokeSetData,
+		invokeSetSeries,
+		removeSetData,
+		removeSetSeries,
+	};
+}
+
+function createMockPlot(overrides: Partial<uPlot> = {}): uPlot {
+	return ({
+		data: [
+			[0, 1, 2],
+			[1, 2, 3],
+			[4, 5, 6],
+		],
+		series: [{ show: true }, { show: true }, { show: true }],
+		delBand: jest.fn(),
+		addBand: jest.fn(),
+		setData: jest.fn(),
+		...overrides,
+	} as unknown) as uPlot;
+}
+
+describe('useBarChartStacking', () => {
+	it('returns data as-is when isStackedBarChart is false', () => {
+		const data: uPlot.AlignedData = [
+			[100, 200],
+			[1, 2],
+			[3, 4],
+		];
+		const { result } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: false,
+				config: null,
+			}),
+		);
+		expect(result.current).toBe(data);
+	});
+
+	it('returns data as-is when config is null and isStackedBarChart is true', () => {
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[4, 5],
+		];
+		const { result } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: null,
+			}),
+		);
+		// Still returns stacked data (computed in useMemo); no hooks registered
+		expect(result.current[0]).toEqual([0, 1]);
+		expect(result.current[1]).toEqual([5, 7]); // stacked
+		expect(result.current[2]).toEqual([4, 5]);
+	});
+
+	it('returns stacked data when isStackedBarChart is true and multiple value series', () => {
+		const data: uPlot.AlignedData = [
+			[0, 1, 2],
+			[1, 2, 3],
+			[4, 5, 6],
+			[7, 8, 9],
+		];
+		const { result } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: null,
+			}),
+		);
+		expect(result.current[0]).toEqual([0, 1, 2]);
+		expect(result.current[1]).toEqual([12, 15, 18]); // s1+s2+s3
+		expect(result.current[2]).toEqual([11, 13, 15]); // s2+s3
+		expect(result.current[3]).toEqual([7, 8, 9]);
+	});
+
+	it('returns data as-is when only one value series (no stacking needed)', () => {
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+		];
+		const { result } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: null,
+			}),
+		);
+		expect(result.current).toEqual(data);
+	});
+
+	it('registers setData and setSeries hooks when isStackedBarChart and config provided', () => {
+		const { config } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[3, 4],
+		];
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		expect(config.addHook).toHaveBeenCalledWith('setData', expect.any(Function));
+		expect(config.addHook).toHaveBeenCalledWith(
+			'setSeries',
+			expect.any(Function),
+		);
+	});
+
+	it('does not register hooks when isStackedBarChart is false', () => {
+		const { config } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[3, 4],
+		];
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: false,
+				config: asConfig(config),
+			}),
+		);
+
+		expect(config.addHook).not.toHaveBeenCalled();
+	});
+
+	it('calls cleanup when unmounted', () => {
+		const { config, removeSetData, removeSetSeries } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[3, 4],
+		];
+
+		const { unmount } = renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		unmount();
+
+		expect(removeSetData).toHaveBeenCalled();
+		expect(removeSetSeries).toHaveBeenCalled();
+	});
+
+	it('re-stacks and updates plot when setData hook is invoked', () => {
+		const { config, invokeSetData } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1, 2],
+			[1, 2, 3],
+			[4, 5, 6],
+		];
+		const plot = createMockPlot({
+			data: [
+				[0, 1, 2],
+				[5, 7, 9],
+				[4, 5, 6],
+			],
+		});
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		invokeSetData(plot);
+
+		expect(plot.delBand).toHaveBeenCalledWith(null);
+		expect(plot.addBand).toHaveBeenCalled();
+		expect(plot.setData).toHaveBeenCalledWith(
+			expect.arrayContaining([
+				[0, 1, 2],
+				expect.any(Array), // stacked row 1
+				expect.any(Array), // stacked row 2
+			]),
+		);
+	});
+
+	it('re-stacks when setSeries hook is invoked (e.g. legend toggle)', () => {
+		const { config, invokeSetSeries } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[10, 20],
+			[5, 10],
+		];
+		// Plot data must match unstacked length so canApplyStacking passes
+		const plot = createMockPlot({
+			data: [
+				[0, 1],
+				[15, 30],
+				[5, 10],
+			],
+		});
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		invokeSetSeries(plot, 1, { show: false });
+
+		expect(plot.setData).toHaveBeenCalled();
+	});
+
+	it('does not re-stack when setSeries is called with focus option', () => {
+		const { config, invokeSetSeries } = createMockConfig();
+		const data: uPlot.AlignedData = [
+			[0, 1],
+			[1, 2],
+			[3, 4],
+		];
+		const plot = createMockPlot();
+
+		renderHook(() =>
+			useBarChartStacking({
+				data,
+				isStackedBarChart: true,
+				config: asConfig(config),
+			}),
+		);
+
+		(plot.setData as jest.Mock).mockClear();
+		invokeSetSeries(plot, 1, { focus: true } as uPlot.Series);
+
+		expect(plot.setData).not.toHaveBeenCalled();
+	});
+});

frontend/src/container/DashboardContainer/visualization/hooks/useBarChartStacking.ts

@@ -0,0 +1,125 @@
+import {
+	MutableRefObject,
+	useCallback,
+	useLayoutEffect,
+	useMemo,
+	useRef,
+} from 'react';
+import { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
+import { has } from 'lodash-es';
+import uPlot from 'uplot';
+
+import { stackSeries } from '../charts/utils/stackSeriesUtils';
+
+/** Returns true if the series at the given index is hidden (e.g. via legend toggle). */
+function isSeriesHidden(plot: uPlot, seriesIndex: number): boolean {
+	return !plot.series[seriesIndex]?.show;
+}
+
+function canApplyStacking(
+	unstackedData: uPlot.AlignedData | null,
+	plot: uPlot,
+	isUpdating: boolean,
+): boolean {
+	return (
+		!isUpdating &&
+		!!unstackedData &&
+		!!plot.data &&
+		unstackedData[0]?.length === plot.data[0]?.length
+	);
+}
+
+function setupStackingHooks(
+	config: UPlotConfigBuilder,
+	applyStackingToChart: (plot: uPlot) => void,
+	isUpdatingRef: MutableRefObject<boolean>,
+): () => void {
+	const onDataChange = (plot: uPlot): void => {
+		if (!isUpdatingRef.current) {
+			applyStackingToChart(plot);
+		}
+	};
+
+	const onSeriesVisibilityChange = (
+		plot: uPlot,
+		_seriesIdx: number | null,
+		opts: uPlot.Series,
+	): void => {
+		if (!has(opts, 'focus')) {
+			applyStackingToChart(plot);
+		}
+	};
+
+	const removeSetDataHook = config.addHook('setData', onDataChange);
+	const removeSetSeriesHook = config.addHook(
+		'setSeries',
+		onSeriesVisibilityChange,
+	);
+
+	return (): void => {
+		removeSetDataHook?.();
+		removeSetSeriesHook?.();
+	};
+}
+
+export interface UseBarChartStackingParams {
+	data: uPlot.AlignedData;
+	isStackedBarChart?: boolean;
+	config: UPlotConfigBuilder | null;
+}
+
+/**
+ * Handles stacking for bar charts: computes initial stacked data and re-stacks
+ * when data or series visibility changes (e.g. legend toggles).
+ */
+export function useBarChartStacking({
+	data,
+	isStackedBarChart = false,
+	config,
+}: UseBarChartStackingParams): uPlot.AlignedData {
+	// Store unstacked source data so uPlot hooks can access it (hooks run outside React's render cycle)
+	const unstackedDataRef = useRef<uPlot.AlignedData | null>(null);
+	unstackedDataRef.current = isStackedBarChart ? data : null;
+
+	// Prevents re-entrant calls when we update chart data (avoids infinite loop in setData hook)
+	const isUpdatingChartRef = useRef(false);
+
+	const chartData = useMemo((): uPlot.AlignedData => {
+		if (!isStackedBarChart || !data || data.length < 2) {
+			return data;
+		}
+		const noSeriesHidden = (): boolean => false; // include all series in initial stack
+		const { data: stacked } = stackSeries(data, noSeriesHidden);
+		return stacked;
+	}, [data, isStackedBarChart]);
+
+	const applyStackingToChart = useCallback((plot: uPlot): void => {
+		const unstacked = unstackedDataRef.current;
+		if (
+			!unstacked ||
+			!canApplyStacking(unstacked, plot, isUpdatingChartRef.current)
+		) {
+			return;
+		}
+
+		const shouldExcludeSeries = (idx: number): boolean =>
+			isSeriesHidden(plot, idx);
+		const { data: stacked, bands } = stackSeries(unstacked, shouldExcludeSeries);
+
+		plot.delBand(null);
+		bands.forEach((band: uPlot.Band) => plot.addBand(band));
+
+		isUpdatingChartRef.current = true;
+		plot.setData(stacked);
+		isUpdatingChartRef.current = false;
+	}, []);
+
+	useLayoutEffect(() => {
+		if (!isStackedBarChart || !config) {
+			return undefined;
+		}
+		return setupStackingHooks(config, applyStackingToChart, isUpdatingChartRef);
+	}, [isStackedBarChart, config, applyStackingToChart]);
+
+	return chartData;
+}

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

@@ -0,0 +1,160 @@
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { PanelWrapperProps } from 'container/PanelWrapper/panelWrapper.types';
+import { useIsDarkMode } from 'hooks/useDarkMode';
+import { useResizeObserver } from 'hooks/useDimensions';
+import { LegendPosition } from 'lib/uPlotV2/components/types';
+import ContextMenu from 'periscope/components/ContextMenu';
+import { useDashboard } from 'providers/Dashboard/Dashboard';
+import { useTimezone } from 'providers/Timezone';
+import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
+import uPlot from 'uplot';
+import { getTimeRange } from 'utils/getTimeRange';
+
+import BarChart from '../../charts/BarChart/BarChart';
+import ChartManager from '../../components/ChartManager/ChartManager';
+import { usePanelContextMenu } from '../../hooks/usePanelContextMenu';
+import { prepareBarPanelConfig, prepareBarPanelData } from './utils';
+
+import '../Panel.styles.scss';
+
+function BarPanel(props: PanelWrapperProps): JSX.Element {
+	const {
+		panelMode,
+		queryResponse,
+		widget,
+		onDragSelect,
+		isFullViewMode,
+		onToggleModelHandler,
+	} = props;
+	const uPlotRef = useRef<uPlot | null>(null);
+	const { toScrollWidgetId, setToScrollWidgetId } = useDashboard();
+	const graphRef = useRef<HTMLDivElement>(null);
+	const [minTimeScale, setMinTimeScale] = useState<number>();
+	const [maxTimeScale, setMaxTimeScale] = useState<number>();
+	const containerDimensions = useResizeObserver(graphRef);
+
+	const isDarkMode = useIsDarkMode();
+	const { timezone } = useTimezone();
+
+	useEffect(() => {
+		if (toScrollWidgetId === widget.id) {
+			graphRef.current?.scrollIntoView({
+				behavior: 'smooth',
+				block: 'center',
+			});
+			graphRef.current?.focus();
+			setToScrollWidgetId('');
+		}
+	}, [toScrollWidgetId, setToScrollWidgetId, widget.id]);
+
+	useEffect((): void => {
+		const { startTime, endTime } = getTimeRange(queryResponse);
+
+		setMinTimeScale(startTime);
+		setMaxTimeScale(endTime);
+	}, [queryResponse]);
+
+	const {
+		coordinates,
+		popoverPosition,
+		onClose,
+		menuItemsConfig,
+		clickHandlerWithContextMenu,
+	} = usePanelContextMenu({
+		widget,
+		queryResponse,
+	});
+
+	const config = useMemo(() => {
+		return prepareBarPanelConfig({
+			widget,
+			isDarkMode,
+			currentQuery: widget.query,
+			onClick: clickHandlerWithContextMenu,
+			onDragSelect,
+			apiResponse: queryResponse?.data?.payload as MetricRangePayloadProps,
+			timezone,
+			panelMode,
+			minTimeScale: minTimeScale,
+			maxTimeScale: maxTimeScale,
+		});
+	}, [
+		widget,
+		isDarkMode,
+		queryResponse?.data?.payload,
+		clickHandlerWithContextMenu,
+		onDragSelect,
+		minTimeScale,
+		maxTimeScale,
+		timezone,
+		panelMode,
+	]);
+
+	const chartData = useMemo(() => {
+		if (!queryResponse?.data?.payload) {
+			return [];
+		}
+		return prepareBarPanelData(queryResponse?.data?.payload);
+	}, [queryResponse?.data?.payload]);
+
+	const layoutChildren = useMemo(() => {
+		if (!isFullViewMode) {
+			return null;
+		}
+		return (
+			<ChartManager
+				config={config}
+				alignedData={chartData}
+				yAxisUnit={widget.yAxisUnit}
+				onCancel={onToggleModelHandler}
+			/>
+		);
+	}, [
+		isFullViewMode,
+		config,
+		chartData,
+		widget.yAxisUnit,
+		onToggleModelHandler,
+	]);
+
+	const onPlotDestroy = useCallback(() => {
+		uPlotRef.current = null;
+	}, []);
+
+	const onPlotRef = useCallback((plot: uPlot | null): void => {
+		uPlotRef.current = plot;
+	}, []);
+
+	return (
+		<div className="panel-container" ref={graphRef}>
+			{containerDimensions.width > 0 && containerDimensions.height > 0 && (
+				<BarChart
+					config={config}
+					legendConfig={{
+						position: widget?.legendPosition ?? LegendPosition.BOTTOM,
+					}}
+					plotRef={onPlotRef}
+					onDestroy={onPlotDestroy}
+					yAxisUnit={widget.yAxisUnit}
+					decimalPrecision={widget.decimalPrecision}
+					timezone={timezone.value}
+					data={chartData as uPlot.AlignedData}
+					width={containerDimensions.width}
+					height={containerDimensions.height}
+					layoutChildren={layoutChildren}
+					isStackedBarChart={widget.stackedBarChart ?? false}
+				>
+					<ContextMenu
+						coordinates={coordinates}
+						popoverPosition={popoverPosition}
+						title={menuItemsConfig.header as string}
+						items={menuItemsConfig.items}
+						onClose={onClose}
+					/>
+				</BarChart>
+			)}
+		</div>
+	);
+}
+
+export default BarPanel;

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

@@ -0,0 +1,108 @@
+import { Timezone } from 'components/CustomTimePicker/timezoneUtils';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import { getInitialStackedBands } from 'container/DashboardContainer/visualization/charts/utils/stackSeriesUtils';
+import { getLegend } from 'lib/dashboard/getQueryResults';
+import getLabelName from 'lib/getLabelName';
+import { OnClickPluginOpts } from 'lib/uPlotLib/plugins/onClickPlugin';
+import {
+	DrawStyle,
+	LineInterpolation,
+	LineStyle,
+	VisibilityMode,
+} from 'lib/uPlotV2/config/types';
+import { UPlotConfigBuilder } from 'lib/uPlotV2/config/UPlotConfigBuilder';
+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';
+import { fillMissingXAxisTimestamps, getXAxisTimestamps } from '../utils';
+import { buildBaseConfig } from '../utils/baseConfigBuilder';
+
+export function prepareBarPanelData(
+	apiResponse: MetricRangePayloadProps,
+): AlignedData {
+	const seriesList = apiResponse?.data?.result || [];
+	const timestampArr = getXAxisTimestamps(seriesList);
+	const yAxisValuesArr = fillMissingXAxisTimestamps(timestampArr, seriesList);
+	return [timestampArr, ...yAxisValuesArr];
+}
+
+export function prepareBarPanelConfig({
+	widget,
+	isDarkMode,
+	currentQuery,
+	onClick,
+	onDragSelect,
+	apiResponse,
+	timezone,
+	panelMode,
+	minTimeScale,
+	maxTimeScale,
+}: {
+	widget: Widgets;
+	isDarkMode: boolean;
+	currentQuery: Query;
+	onClick: OnClickPluginOpts['onClick'];
+	onDragSelect: (startTime: number, endTime: number) => void;
+	apiResponse: MetricRangePayloadProps;
+	timezone: Timezone;
+	panelMode: PanelMode;
+	minTimeScale?: number;
+	maxTimeScale?: number;
+}): UPlotConfigBuilder {
+	const builder = buildBaseConfig({
+		widget,
+		isDarkMode,
+		onClick,
+		onDragSelect,
+		apiResponse,
+		timezone,
+		panelMode,
+		panelType: PANEL_TYPES.BAR,
+		minTimeScale,
+		maxTimeScale,
+	});
+
+	builder.setCursor({
+		focus: {
+			prox: 1e3,
+		},
+	});
+
+	if (widget.stackedBarChart) {
+		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) => {
+		const baseLabelName = getLabelName(
+			series.metric,
+			series.queryName || '', // query
+			series.legend || '',
+		);
+
+		const label = currentQuery
+			? getLegend(series, currentQuery, baseLabelName)
+			: baseLabelName;
+
+		builder.addSeries({
+			scaleKey: 'y',
+			drawStyle: DrawStyle.Bar,
+			panelType: PANEL_TYPES.BAR,
+			label: label,
+			colorMapping: widget.customLegendColors ?? {},
+			spanGaps: false,
+			lineStyle: LineStyle.Solid,
+			lineInterpolation: LineInterpolation.Spline,
+			showPoints: VisibilityMode.Never,
+			pointSize: 5,
+			isDarkMode,
+		});
+	});
+
+	return builder;
+}

frontend/src/hooks/querySuggestions/useGetQueryKeyValueSuggestions.ts

@@ -9,9 +9,6 @@ export const useGetQueryKeyValueSuggestions = ({
 	searchText,
 	signalSource,
 	metricName,
-	startUnixMilli,
-	endUnixMilli,
-	existingQuery,
 	options,
 }: {
 	key: string;
@@ -23,9 +20,6 @@ export const useGetQueryKeyValueSuggestions = ({
 		AxiosError
 	>;
 	metricName?: string;
-	startUnixMilli?: number;
-	endUnixMilli?: number;
-	existingQuery?: string;
 }): UseQueryResult<
 	AxiosResponse<QueryKeyValueSuggestionsResponseProps>,
 	AxiosError
@@ -46,9 +40,6 @@ export const useGetQueryKeyValueSuggestions = ({
 				searchText: searchText || '',
 				signalSource: signalSource as 'meter' | '',
 				metricName: metricName || '',
-				startUnixMilli,
-				endUnixMilli,
-				existingQuery,
 			}),
 		...options,
 	});

frontend/src/hooks/useCopyToClipboard.ts

@@ -0,0 +1,61 @@
+import { useCallback, useEffect, useRef, useState } from 'react';
+
+const DEFAULT_COPIED_RESET_MS = 2000;
+
+export interface UseCopyToClipboardOptions {
+	/** How long (ms) to keep "copied" state before resetting. Default 2000. */
+	copiedResetMs?: number;
+}
+
+export type ID = number | string | null;
+
+export interface UseCopyToClipboardReturn {
+	/** Copy text to clipboard. Pass an optional id to track which item was copied (e.g. seriesIndex). */
+	copyToClipboard: (text: string, id?: ID) => void;
+	/** True when something was just copied and still within the reset threshold. */
+	isCopied: boolean;
+	/** The id passed to the last successful copy, or null after reset. Use to show "copied" state for a specific item (e.g. copiedId === item.seriesIndex). */
+	id: ID;
+}
+
+export function useCopyToClipboard(
+	options: UseCopyToClipboardOptions = {},
+): UseCopyToClipboardReturn {
+	const { copiedResetMs = DEFAULT_COPIED_RESET_MS } = options;
+	const [state, setState] = useState<{ isCopied: boolean; id: ID }>({
+		isCopied: false,
+		id: null,
+	});
+	const timeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+	useEffect(() => {
+		return (): void => {
+			if (timeoutRef.current) {
+				clearTimeout(timeoutRef.current);
+				timeoutRef.current = null;
+			}
+		};
+	}, []);
+
+	const copyToClipboard = useCallback(
+		(text: string, id?: ID): void => {
+			navigator.clipboard.writeText(text).then(() => {
+				if (timeoutRef.current) {
+					clearTimeout(timeoutRef.current);
+				}
+				setState({ isCopied: true, id: id ?? null });
+				timeoutRef.current = setTimeout(() => {
+					setState({ isCopied: false, id: null });
+					timeoutRef.current = null;
+				}, copiedResetMs);
+			});
+		},
+		[copiedResetMs],
+	);
+
+	return {
+		copyToClipboard,
+		isCopied: state.isCopied,
+		id: state.id,
+	};
+}

frontend/src/lib/uPlotV2/components/Legend/Legend.styles.scss

@@ -128,6 +128,15 @@
 		opacity: 1;
 	}
 
+	.legend-item-label-trigger {
+		display: flex;
+		align-items: center;
+		gap: 6px;
+		flex: 1;
+		min-width: 0;
+		cursor: pointer;
+	}
+
 	.legend-marker {
 		border-width: 2px;
 		border-radius: 50%;
@@ -157,10 +166,34 @@
 		text-overflow: ellipsis;
 		white-space: nowrap;
 		min-width: 0;
+		user-select: none;
+	}
+
+	.legend-copy-button {
+		display: none;
+		align-items: center;
+		justify-content: center;
+		flex-shrink: 0;
+		padding: 2px;
+		margin: 0;
+		border: none;
+		color: var(--bg-vanilla-400);
+		cursor: pointer;
+		border-radius: 4px;
+		opacity: 1;
+		transition: opacity 0.15s ease, color 0.15s ease;
+
+		&:hover {
+			color: var(--bg-vanilla-100);
+		}
 	}
 
 	&:hover {
 		background: rgba(255, 255, 255, 0.05);
+		.legend-copy-button {
+			display: flex;
+			opacity: 1;
+		}
 	}
 }
 
@@ -172,4 +205,17 @@
 			}
 		}
 	}
+
+	.legend-item {
+		&:hover {
+			background: rgba(0, 0, 0, 0.05);
+		}
+		.legend-copy-button {
+			color: var(--bg-ink-400);
+
+			&:hover {
+				color: var(--bg-ink-500);
+			}
+		}
+	}
 }

frontend/src/lib/uPlotV2/components/Legend/Legend.tsx

@@ -2,8 +2,10 @@ import { useCallback, useMemo, useRef, useState } from 'react';
 import { VirtuosoGrid } from 'react-virtuoso';
 import { Input, Tooltip as AntdTooltip } from 'antd';
 import cx from 'classnames';
+import { useCopyToClipboard } from 'hooks/useCopyToClipboard';
 import { LegendItem } from 'lib/uPlotV2/config/types';
 import useLegendsSync from 'lib/uPlotV2/hooks/useLegendsSync';
+import { Check, Copy } from 'lucide-react';
 
 import { useLegendActions } from '../../hooks/useLegendActions';
 import { LegendPosition, LegendProps } from '../types';
@@ -32,6 +34,7 @@ export default function Legend({
 	});
 	const legendContainerRef = useRef<HTMLDivElement | null>(null);
 	const [legendSearchQuery, setLegendSearchQuery] = useState('');
+	const { copyToClipboard, id: copiedId } = useCopyToClipboard();
 
 	const legendItems = useMemo(() => Object.values(legendItemsMap), [
 		legendItemsMap,
@@ -59,26 +62,53 @@ export default function Legend({
 		);
 	}, [position, legendSearchQuery, legendItems]);
 
+	const handleCopyLegendItem = useCallback(
+		(e: React.MouseEvent, seriesIndex: number, label: string): void => {
+			e.stopPropagation();
+			copyToClipboard(label, seriesIndex);
+		},
+		[copyToClipboard],
+	);
+
 	const renderLegendItem = useCallback(
-		(item: LegendItem): JSX.Element => (
-			<AntdTooltip key={item.seriesIndex} title={item.label}>
+		(item: LegendItem): JSX.Element => {
+			const isCopied = copiedId === item.seriesIndex;
+			return (
 				<div
+					key={item.seriesIndex}
 					data-legend-item-id={item.seriesIndex}
 					className={cx('legend-item', `legend-item-${position.toLowerCase()}`, {
 						'legend-item-off': !item.show,
 						'legend-item-focused': focusedSeriesIndex === item.seriesIndex,
 					})}
 				>
-					<div
-						className="legend-marker"
-						style={{ borderColor: String(item.color) }}
-						data-is-legend-marker={true}
-					/>
-					<span className="legend-label">{item.label}</span>
+					<AntdTooltip title={item.label}>
+						<div className="legend-item-label-trigger">
+							<div
+								className="legend-marker"
+								style={{ borderColor: String(item.color) }}
+								data-is-legend-marker={true}
+							/>
+							<span className="legend-label">{item.label}</span>
+						</div>
+					</AntdTooltip>
+					<AntdTooltip title={isCopied ? 'Copied' : 'Copy'}>
+						<button
+							type="button"
+							className="legend-copy-button"
+							onClick={(e): void =>
+								handleCopyLegendItem(e, item.seriesIndex, item.label ?? '')
+							}
+							aria-label={`Copy ${item.label}`}
+							data-testid="legend-copy"
+						>
+							{isCopied ? <Check size={12} /> : <Copy size={12} />}
+						</button>
+					</AntdTooltip>
 				</div>
-			</AntdTooltip>
-		),
-		[focusedSeriesIndex, position],
+			);
+		},
+		[copiedId, focusedSeriesIndex, handleCopyLegendItem, position],
 	);
 
 	const isEmptyState = useMemo(() => {

frontend/src/lib/uPlotV2/components/Tooltip/BarChartTooltip.tsx

@@ -0,0 +1,31 @@
+import { useMemo } from 'react';
+
+import { BarTooltipProps, TooltipContentItem } from '../types';
+import Tooltip from './Tooltip';
+import { buildTooltipContent } from './utils';
+
+export default function BarChartTooltip(props: BarTooltipProps): JSX.Element {
+	const content = useMemo(
+		(): TooltipContentItem[] =>
+			buildTooltipContent({
+				data: props.uPlotInstance.data,
+				series: props.uPlotInstance.series,
+				dataIndexes: props.dataIndexes,
+				activeSeriesIndex: props.seriesIndex,
+				uPlotInstance: props.uPlotInstance,
+				yAxisUnit: props.yAxisUnit ?? '',
+				decimalPrecision: props.decimalPrecision,
+				isStackedBarChart: props.isStackedBarChart,
+			}),
+		[
+			props.uPlotInstance,
+			props.seriesIndex,
+			props.dataIndexes,
+			props.yAxisUnit,
+			props.decimalPrecision,
+			props.isStackedBarChart,
+		],
+	);
+
+	return <Tooltip {...props} content={content} />;
+}

frontend/src/lib/uPlotV2/components/Tooltip/utils.ts

@@ -25,16 +25,28 @@ export function getTooltipBaseValue({
 	index,
 	dataIndex,
 	isStackedBarChart,
+	series,
 }: {
 	data: AlignedData;
 	index: number;
 	dataIndex: number;
 	isStackedBarChart?: boolean;
+	series?: Series[];
 }): number | null {
 	let baseValue = data[index][dataIndex] ?? null;
-	if (isStackedBarChart && index + 1 < data.length && baseValue !== null) {
-		const nextValue = data[index + 1][dataIndex] ?? null;
-		if (nextValue !== null) {
+	// Top-down stacking (first series at top): raw = stacked[i] - stacked[nextVisible].
+	// When series are hidden, we must use the next *visible* series, not index+1,
+	// since hidden series keep raw values and would produce negative/wrong results.
+	if (isStackedBarChart && baseValue !== null && series) {
+		let nextVisibleIdx = -1;
+		for (let j = index + 1; j < series.length; j++) {
+			if (series[j]?.show) {
+				nextVisibleIdx = j;
+				break;
+			}
+		}
+		if (nextVisibleIdx >= 1) {
+			const nextValue = data[nextVisibleIdx][dataIndex] ?? 0;
 			baseValue = baseValue - nextValue;
 		}
 	}
@@ -80,6 +92,7 @@ export function buildTooltipContent({
 			index,
 			dataIndex,
 			isStackedBarChart,
+			series,
 		});
 
 		const isActive = index === activeSeriesIndex;

frontend/src/lib/uPlotV2/components/__tests__/Legend.test.tsx

@@ -1,5 +1,11 @@
 import React from 'react';
-import { render, RenderResult, screen } from '@testing-library/react';
+import {
+	fireEvent,
+	render,
+	RenderResult,
+	screen,
+	within,
+} from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
 import { LegendItem } from 'lib/uPlotV2/config/types';
 import useLegendsSync from 'lib/uPlotV2/hooks/useLegendsSync';
@@ -8,6 +14,9 @@ import { useLegendActions } from '../../hooks/useLegendActions';
 import Legend from '../Legend/Legend';
 import { LegendPosition } from '../types';
 
+const mockWriteText = jest.fn().mockResolvedValue(undefined);
+let clipboardSpy: jest.SpyInstance | undefined;
+
 jest.mock('react-virtuoso', () => ({
 	VirtuosoGrid: ({
 		data,
@@ -39,6 +48,15 @@ const mockUseLegendActions = useLegendActions as jest.MockedFunction<
 >;
 
 describe('Legend', () => {
+	beforeAll(() => {
+		// JSDOM does not define navigator.clipboard; add it so we can spy on writeText
+		Object.defineProperty(navigator, 'clipboard', {
+			value: { writeText: () => Promise.resolve() },
+			writable: true,
+			configurable: true,
+		});
+	});
+
 	const baseLegendItemsMap = {
 		0: {
 			seriesIndex: 0,
@@ -70,6 +88,11 @@ describe('Legend', () => {
 		onLegendMouseMove = jest.fn();
 		onLegendMouseLeave = jest.fn();
 		onFocusSeries = jest.fn();
+		mockWriteText.mockClear();
+
+		clipboardSpy = jest
+			.spyOn(navigator.clipboard, 'writeText')
+			.mockImplementation(mockWriteText);
 
 		mockUseLegendsSync.mockReturnValue({
 			legendItemsMap: baseLegendItemsMap,
@@ -86,6 +109,7 @@ describe('Legend', () => {
 	});
 
 	afterEach(() => {
+		clipboardSpy?.mockRestore();
 		jest.clearAllMocks();
 	});
 
@@ -210,4 +234,47 @@ describe('Legend', () => {
 			expect(onLegendMouseLeave).toHaveBeenCalledTimes(1);
 		});
 	});
+
+	describe('copy action', () => {
+		it('copies the legend label to clipboard when copy button is clicked', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			const firstLegendItem = document.querySelector(
+				'[data-legend-item-id="0"]',
+			) as HTMLElement;
+			const copyButton = within(firstLegendItem).getByTestId('legend-copy');
+
+			fireEvent.click(copyButton);
+
+			expect(mockWriteText).toHaveBeenCalledTimes(1);
+			expect(mockWriteText).toHaveBeenCalledWith('A');
+		});
+
+		it('copies the correct label when copy is clicked on a different legend item', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			const thirdLegendItem = document.querySelector(
+				'[data-legend-item-id="2"]',
+			) as HTMLElement;
+			const copyButton = within(thirdLegendItem).getByTestId('legend-copy');
+
+			fireEvent.click(copyButton);
+
+			expect(mockWriteText).toHaveBeenCalledTimes(1);
+			expect(mockWriteText).toHaveBeenCalledWith('C');
+		});
+
+		it('does not call onLegendClick when copy button is clicked', () => {
+			renderLegend(LegendPosition.RIGHT);
+
+			const firstLegendItem = document.querySelector(
+				'[data-legend-item-id="0"]',
+			) as HTMLElement;
+			const copyButton = within(firstLegendItem).getByTestId('legend-copy');
+
+			fireEvent.click(copyButton);
+
+			expect(onLegendClick).not.toHaveBeenCalled();
+		});
+	});
 });

frontend/src/lib/uPlotV2/config/UPlotSeriesBuilder.ts

@@ -1,8 +1,10 @@
+import { PANEL_TYPES } from 'constants/queryBuilder';
 import { themeColors } from 'constants/theme';
 import { generateColor } from 'lib/uPlotLib/utils/generateColor';
 import uPlot, { Series } from 'uplot';
 
 import {
+	BarAlignment,
 	ConfigBuilder,
 	DrawStyle,
 	LineInterpolation,
@@ -43,18 +45,13 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 	}
 
 	private buildLineConfig({
-		lineColor,
-		lineWidth,
-		lineStyle,
-		lineCap,
+		resolvedLineColor,
 	}: {
-		lineColor: string;
-		lineWidth?: number;
-		lineStyle?: LineStyle;
-		lineCap?: Series.Cap;
+		resolvedLineColor: string;
 	}): Partial<Series> {
+		const { lineWidth, lineStyle, lineCap } = this.props;
 		const lineConfig: Partial<Series> = {
-			stroke: lineColor,
+			stroke: resolvedLineColor,
 			width: lineWidth ?? 2,
 		};
 
@@ -65,21 +62,26 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 		if (lineCap) {
 			lineConfig.cap = lineCap;
 		}
+
+		if (this.props.panelType === PANEL_TYPES.BAR) {
+			lineConfig.fill = resolvedLineColor;
+		}
+
 		return lineConfig;
 	}
 
 	/**
 	 * Build path configuration
 	 */
-	private buildPathConfig({
-		pathBuilder,
-		drawStyle,
-		lineInterpolation,
-	}: {
-		pathBuilder?: Series.PathBuilder | null;
-		drawStyle: DrawStyle;
-		lineInterpolation?: LineInterpolation;
-	}): Partial<Series> {
+	private buildPathConfig(): Partial<Series> {
+		const {
+			pathBuilder,
+			drawStyle,
+			lineInterpolation,
+			barAlignment,
+			barMaxWidth,
+			barWidthFactor,
+		} = this.props;
 		if (pathBuilder) {
 			return { paths: pathBuilder };
 		}
@@ -96,7 +98,13 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 					idx0: number,
 					idx1: number,
 				): Series.Paths | null => {
-					const pathsBuilder = getPathBuilder(drawStyle, lineInterpolation);
+					const pathsBuilder = getPathBuilder({
+						drawStyle,
+						lineInterpolation,
+						barAlignment,
+						barMaxWidth,
+						barWidthFactor,
+					});
 
 					return pathsBuilder(self, seriesIdx, idx0, idx1);
 				},
@@ -110,25 +118,21 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 	 * Build points configuration
 	 */
 	private buildPointsConfig({
-		lineColor,
-		lineWidth,
-		pointSize,
-		pointsBuilder,
-		pointsFilter,
-		drawStyle,
-		showPoints,
+		resolvedLineColor,
 	}: {
-		lineColor: string;
-		lineWidth?: number;
-		pointSize?: number;
-		pointsBuilder: Series.Points.Show | null;
-		pointsFilter: Series.Points.Filter | null;
-		drawStyle: DrawStyle;
-		showPoints?: VisibilityMode;
+		resolvedLineColor: string;
 	}): Partial<Series.Points> {
+		const {
+			lineWidth,
+			pointSize,
+			pointsBuilder,
+			pointsFilter,
+			drawStyle,
+			showPoints,
+		} = this.props;
 		const pointsConfig: Partial<Series.Points> = {
-			stroke: lineColor,
-			fill: lineColor,
+			stroke: resolvedLineColor,
+			fill: resolvedLineColor,
 			size: !pointSize || pointSize < (lineWidth ?? 2) ? undefined : pointSize,
 			filter: pointsFilter || undefined,
 		};
@@ -162,44 +166,16 @@ export class UPlotSeriesBuilder extends ConfigBuilder<SeriesProps, Series> {
 	}
 
 	getConfig(): Series {
-		const {
-			drawStyle,
-			pathBuilder,
-			pointsBuilder,
-			pointsFilter,
-			lineInterpolation,
-			lineWidth,
-			lineStyle,
-			lineCap,
-			showPoints,
-			pointSize,
-			scaleKey,
-			label,
-			spanGaps,
-			show = true,
-		} = this.props;
+		const { scaleKey, label, spanGaps, show = true } = this.props;
 
-		const lineColor = this.getLineColor();
+		const resolvedLineColor = this.getLineColor();
 
 		const lineConfig = this.buildLineConfig({
-			lineColor,
-			lineWidth,
-			lineStyle,
-			lineCap,
-		});
-		const pathConfig = this.buildPathConfig({
-			pathBuilder,
-			drawStyle,
-			lineInterpolation,
+			resolvedLineColor,
 		});
+		const pathConfig = this.buildPathConfig();
 		const pointsConfig = this.buildPointsConfig({
-			lineColor,
-			lineWidth,
-			pointSize,
-			pointsBuilder: pointsBuilder ?? null,
-			pointsFilter: pointsFilter ?? null,
-			drawStyle,
-			showPoints,
+			resolvedLineColor,
 		});
 
 		return {
@@ -227,15 +203,36 @@ interface PathBuilders {
 /**
  * Get path builder based on draw style and interpolation
  */
-function getPathBuilder(
-	style: DrawStyle,
-	lineInterpolation?: LineInterpolation,
-): Series.PathBuilder {
+function getPathBuilder({
+	drawStyle,
+	lineInterpolation,
+	barAlignment = BarAlignment.Center,
+	barWidthFactor = 0.6,
+	barMaxWidth = 200,
+}: {
+	drawStyle: DrawStyle;
+	lineInterpolation?: LineInterpolation;
+	barAlignment?: BarAlignment;
+	barMaxWidth?: number;
+	barWidthFactor?: number;
+}): Series.PathBuilder {
 	if (!builders) {
 		throw new Error('Required uPlot path builders are not available');
 	}
 
-	if (style === DrawStyle.Line) {
+	if (drawStyle === DrawStyle.Bar) {
+		const pathBuilders = uPlot.paths;
+		const barsConfigKey = `bars|${barAlignment}|${barWidthFactor}|${barMaxWidth}`;
+		if (!builders[barsConfigKey] && pathBuilders.bars) {
+			builders[barsConfigKey] = pathBuilders.bars({
+				size: [barWidthFactor, barMaxWidth],
+				align: barAlignment,
+			});
+		}
+		return builders[barsConfigKey];
+	}
+
+	if (drawStyle === DrawStyle.Line) {
 		if (lineInterpolation === LineInterpolation.StepBefore) {
 			return builders.stepBefore;
 		}

frontend/src/lib/uPlotV2/config/types.ts

@@ -126,7 +126,45 @@ export enum VisibilityMode {
 	Never = 'never',
 }
 
-export interface SeriesProps {
+/**
+ * Props for configuring lines
+ */
+export interface LineConfig {
+	lineColor?: string;
+	lineInterpolation?: LineInterpolation;
+	lineStyle?: LineStyle;
+	lineWidth?: number;
+	lineCap?: Series.Cap;
+}
+
+/**
+ * Alignment of bars
+ */
+export enum BarAlignment {
+	After = 1,
+	Before = -1,
+	Center = 0,
+}
+
+/**
+ * Props for configuring bars
+ */
+export interface BarConfig {
+	barAlignment?: BarAlignment;
+	barMaxWidth?: number;
+	barWidthFactor?: number;
+}
+
+/**
+ * Props for configuring points
+ */
+export interface PointsConfig {
+	pointColor?: string;
+	pointSize?: number;
+	showPoints?: VisibilityMode;
+}
+
+export interface SeriesProps extends LineConfig, PointsConfig, BarConfig {
 	scaleKey: string;
 	label?: string;
 	panelType: PANEL_TYPES;
@@ -137,20 +175,7 @@ export interface SeriesProps {
 	pointsBuilder?: Series.Points.Show;
 	show?: boolean;
 	spanGaps?: boolean;
-
 	isDarkMode?: boolean;
-
-	// Line config
-	lineColor?: string;
-	lineInterpolation?: LineInterpolation;
-	lineStyle?: LineStyle;
-	lineWidth?: number;
-	lineCap?: Series.Cap;
-
-	// Points config
-	pointColor?: string;
-	pointSize?: number;
-	showPoints?: VisibilityMode;
 }
 
 export interface LegendItem {

frontend/src/mocks-server/__mockdata__/customQuickFilters.ts

@@ -118,13 +118,13 @@ export const otherFiltersResponse = {
 export const quickFiltersAttributeValuesResponse = {
 	status: 'success',
 	data: {
-		data: {
-			values: {
-				relatedValues: ['mq-kafka', 'otel-demo', 'otlp-python', 'sample-flask'],
-				stringValues: ['mq-kafka', 'otel-demo', 'otlp-python', 'sample-flask'],
-				numberValues: [],
-			},
-			complete: true,
-		},
+		stringAttributeValues: [
+			'mq-kafka',
+			'otel-demo',
+			'otlp-python',
+			'sample-flask',
+		],
+		numberAttributeValues: null,
+		boolAttributeValues: null,
 	},
 };

frontend/src/types/api/querySuggestions/types.ts

@@ -29,8 +29,6 @@ export interface QueryKeyRequestProps {
 	fieldDataType?: QUERY_BUILDER_KEY_TYPES;
 	metricName?: string;
 	signalSource?: 'meter' | '';
-	startUnixMilli?: number;
-	endUnixMilli?: number;
 }
 
 export interface QueryKeyValueSuggestionsProps {
@@ -49,9 +47,6 @@ export interface QueryKeyValueRequestProps {
 	searchText: string;
 	signalSource?: 'meter' | '';
 	metricName?: string;
-	startUnixMilli?: number;
-	endUnixMilli?: number;
-	existingQuery?: string;
 }
 
 export type SignalType = 'traces' | 'logs' | 'metrics';