[ES|QL] Disable the filter actions for multivalue fields

packages/kbn-esql-utils/src/utils/append_to_query.test.ts

@@ -168,5 +168,11 @@ AND \`dest\`=="Crete"`
 and \`ip\`::string!="127.0.0.2/32"`
       );
     });
+
+    it('returns undefined for multivalue fields', () => {
+      expect(
+        appendWhereClauseToESQLQuery('from logstash-*', 'dest', ['meow'], '+', 'string')
+      ).toBeUndefined();
+    });
   });
 });

packages/kbn-esql-utils/src/utils/append_to_query.ts

@@ -21,7 +21,11 @@ export function appendWhereClauseToESQLQuery(
   value: unknown,
   operation: '+' | '-' | 'is_not_null' | 'is_null',
   fieldType?: string
-): string {
+): string | undefined {
+  // multivalues filtering is not supported yet
+  if (Array.isArray(value)) {
+    return undefined;
+  }
   let operator;
   switch (operation) {
     case 'is_not_null':

src/plugins/discover/public/application/main/components/layout/discover_layout.tsx

@@ -213,6 +213,9 @@ export function DiscoverLayout({ stateContainer }: DiscoverLayoutProps) {
         getOperator(fieldName, values, operation),
         fieldType
       );
+      if (!updatedQuery) {
+        return;
+      }
       data.query.queryString.setQuery({
         esql: updatedQuery,
       });