[8.x] [ES|QL] Enables the timepicker if the time params are used with cast (#215820) (#216198)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[ES|QL] Enables the timepicker if the time params are used with cast
(#215820)](https://github.com/elastic/kibana/pull/215820)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Stratoula
Kalafateli","email":"efstratia.kalafateli@elastic.co"},"sourceCommit":{"committedDate":"2025-03-27T15:35:20Z","message":"[ES|QL]
Enables the timepicker if the time params are used with cast
(#215820)\n\n## Summary\n\nCloses
https://github.com/elastic/kibana/issues/215366\n\nChanges the utility
to take under consideration the cast. (different\nrepresentation in the
ast tree)\n\n<img width=\"1524\"
alt=\"image\"\nsrc=\"https://github.com/user-attachments/assets/a85571c3-2e71-4bc7-822b-3b44d77975e5\"\n/>\n\n\n###
Checklist\n\n- [ ] [Unit or
functional\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\nwere
updated or added to match the most common
scenarios","sha":"61c64bcaee61e81d8ee68531cf7ba45e92aba975","branchLabelMapping":{"^v9.1.0$":"main","^v8.19.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:fix","Feature:ES|QL","Team:ESQL","backport:version","v9.1.0","v8.19.0"],"title":"[ES|QL]
Enables the timepicker if the time params are used with
cast","number":215820,"url":"https://github.com/elastic/kibana/pull/215820","mergeCommit":{"message":"[ES|QL]
Enables the timepicker if the time params are used with cast
(#215820)\n\n## Summary\n\nCloses
https://github.com/elastic/kibana/issues/215366\n\nChanges the utility
to take under consideration the cast. (different\nrepresentation in the
ast tree)\n\n<img width=\"1524\"
alt=\"image\"\nsrc=\"https://github.com/user-attachments/assets/a85571c3-2e71-4bc7-822b-3b44d77975e5\"\n/>\n\n\n###
Checklist\n\n- [ ] [Unit or
functional\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\nwere
updated or added to match the most common
scenarios","sha":"61c64bcaee61e81d8ee68531cf7ba45e92aba975"}},"sourceBranch":"main","suggestedTargetBranches":["8.x"],"targetPullRequestStates":[{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/215820","number":215820,"mergeCommit":{"message":"[ES|QL]
Enables the timepicker if the time params are used with cast
(#215820)\n\n## Summary\n\nCloses
https://github.com/elastic/kibana/issues/215366\n\nChanges the utility
to take under consideration the cast. (different\nrepresentation in the
ast tree)\n\n<img width=\"1524\"
alt=\"image\"\nsrc=\"https://github.com/user-attachments/assets/a85571c3-2e71-4bc7-822b-3b44d77975e5\"\n/>\n\n\n###
Checklist\n\n- [ ] [Unit or
functional\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\nwere
updated or added to match the most common
scenarios","sha":"61c64bcaee61e81d8ee68531cf7ba45e92aba975"}},{"branch":"8.x","label":"v8.19.0","branchLabelMappingKey":"^v8.19.0$","isSourceBranch":false,"state":"NOT_CREATED"}]}]
BACKPORT-->

Co-authored-by: Stratoula Kalafateli <efstratia.kalafateli@elastic.co>

src/platform/packages/shared/kbn-esql-ast/index.ts

@@ -29,6 +29,7 @@ export type {
   AstProviderFn,
   EditorError,
   ESQLAstNode,
+  ESQLInlineCast,
 } from './src/types';
 
 export {

src/platform/packages/shared/kbn-esql-utils/src/utils/query_parsing_helpers.test.ts

@@ -183,6 +183,14 @@ describe('esql query helpers', () => {
         )
       ).toBe('event.timefield');
     });
+
+    it('should return the time field if the column is casted', () => {
+      expect(
+        getTimeFieldFromESQLQuery(
+          'from a | WHERE date_nanos::date >= ?_tstart AND date_nanos::date <= ?_tend'
+        )
+      ).toBe('date_nanos');
+    });
   });
 
   describe('prettifyQuery', function () {

src/platform/packages/shared/kbn-esql-utils/src/utils/query_parsing_helpers.ts

@@ -13,6 +13,7 @@ import type {
   ESQLFunction,
   ESQLColumn,
   ESQLSingleAstItem,
+  ESQLInlineCast,
   ESQLCommandOption,
 } from '@kbn/esql-ast';
 import type { ESQLControlVariable } from '@kbn/esql-types';
@@ -100,12 +101,27 @@ export const getTimeFieldFromESQLQuery = (esql: string) => {
   }
   const lowLevelFunction = allFunctionsWithNamedParams[allFunctionsWithNamedParams.length - 1];
 
-  const column = lowLevelFunction.args.find((arg) => {
-    const argument = arg as ESQLSingleAstItem;
-    return argument.type === 'column';
-  }) as ESQLColumn;
+  let columnName: string | undefined;
 
-  return column?.name;
+  lowLevelFunction.args.some((arg) => {
+    const argument = arg as ESQLSingleAstItem | ESQLInlineCast<ESQLSingleAstItem>;
+    if (argument.type === 'column') {
+      columnName = argument.name;
+      return true;
+    }
+
+    if (
+      argument.type === 'inlineCast' &&
+      (argument as ESQLInlineCast<ESQLSingleAstItem>).value.type === 'column'
+    ) {
+      columnName = (argument as ESQLInlineCast<ESQLSingleAstItem>).value.name;
+      return true;
+    }
+
+    return false;
+  });
+
+  return columnName;
 };
 
 export const isQueryWrappedByPipes = (query: string): boolean => {