Prevent showing filter on unfilterable fields

src/plugins/discover/public/application/components/discover_grid/discover_grid_cell_actions.test.tsx

@@ -9,14 +9,21 @@
 import React from 'react';
 import { mountWithIntl } from '@kbn/test/jest';
 import { findTestSubject } from '@elastic/eui/lib/test';
-import { FilterInBtn, FilterOutBtn } from './discover_grid_cell_actions';
+import { FilterInBtn, FilterOutBtn, buildCellActions } from './discover_grid_cell_actions';
 import { DiscoverGridContext } from './discover_grid_context';
 
 import { indexPatternMock } from '../../../__mocks__/index_pattern';
 import { esHits } from '../../../__mocks__/es_hits';
 import { EuiButton } from '@elastic/eui';
+import { IndexPatternField } from 'src/plugins/data/common';
 
 describe('Discover cell actions ', function () {
+  it('should not show cell actions for unfilterable fields', async () => {
+    expect(
+      buildCellActions({ name: 'foo', filterable: false } as IndexPatternField)
+    ).toBeUndefined();
+  });
+
   it('triggers filter function when FilterInBtn is clicked', async () => {
     const contextMock = {
       expanded: undefined,

src/plugins/discover/public/application/components/discover_grid/discover_grid_cell_actions.tsx

@@ -79,7 +79,7 @@ export const FilterOutBtn = ({
 };
 
 export function buildCellActions(field: IndexPatternField) {
-  if (!field.aggregatable && !field.searchable) {
+  if (!field.filterable) {
     return undefined;
   }