fix: rollback lucene sql filter change

AGENTS.md

@@ -71,19 +71,6 @@ and lint issues across all packages. Pre-commit hooks handle this when
 committing, but if you finish edits without committing, run `yarn lint:fix`
 before stopping.
 
-## Before Writing New Utility Functions
-
-Before implementing a new parsing, formatting, or transformation function,
-search for existing functions that already do the same thing or something close.
-Common places to check:
-
-- `packages/common-utils/src/core/metadata.ts` — key/column parsing utilities
-  (e.g. `parseKeyPath`)
-- `packages/common-utils/src/queryParser.ts` — Lucene parsing (`parse`,
-  `decodeSpecialTokens`), AST type guards, serialization helpers
-- `packages/common-utils/src/filters.ts` — filter state serialization and
-  parsing (`filtersToQuery`, `parseLuceneFilter`)
-
 ## Key Principles
 
 1. **Multi-tenancy**: All data is scoped to `Team` - ensure proper filtering

packages/api/src/utils/zod.ts

@@ -146,7 +146,7 @@ export type ExternalDashboardFilter = z.infer<
 >;
 
 export const externalDashboardSavedFilterValueSchema = z.object({
-  type: z.enum(['sql', 'lucene']).optional().default('sql'),
+  type: z.literal('sql').optional().default('sql'),
   condition: z.string().max(10000),
 });
 

packages/app/src/ChartUtils.tsx

@@ -17,10 +17,6 @@ import {
   getAlignedDateRange,
   Granularity,
 } from '@hyperdx/common-utils/dist/core/utils';
-import {
-  type FilterState,
-  filtersToQuery,
-} from '@hyperdx/common-utils/dist/filters';
 import { isBuilderChartConfig } from '@hyperdx/common-utils/dist/guards';
 import {
   AggregateFunction as AggFnV2,
@@ -927,19 +923,13 @@ export function buildEventsSearchUrl({
 
   // Add group-by column filters
   if (groupFilters && groupFilters.length > 0) {
-    const filterState: FilterState = {};
-    for (const { column, value } of groupFilters) {
+    groupFilters.forEach(({ column, value }) => {
       if (column && value != null) {
-        if (!filterState[column]) {
-          filterState[column] = {
-            included: new Set(),
-            excluded: new Set(),
-          };
-        }
-        filterState[column].included.add(String(value));
+        // Can't use SQLString.escape here because the search endpoint relies on exist match for UI
+        const condition = `${column} IN (${SqlString.escape(value)})`;
+        additionalFilters.push({ type: 'sql', condition });
       }
-    }
-    additionalFilters.push(...filtersToQuery(filterState));
+    });
   }
 
   // Add Y-axis value range filter (±threshold) for charts