[BREAKING] Support multivalued ES|QL parameters

specification/esql/_types/types.ts

@@ -0,0 +1,22 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { FieldValue } from '@_types/common'
+
+export type ESQLParam = FieldValue | FieldValue[]

specification/esql/query/QueryRequest.ts

@@ -18,10 +18,10 @@
  */
 
 import { RequestBase } from '@_types/Base'
-import { FieldValue } from '@_types/common'
 import { QueryContainer } from '@_types/query_dsl/abstractions'
 import { EsqlFormat } from '@esql/_types/QueryParameters'
 import { TableValuesContainer } from '@esql/_types/TableValuesContainer'
+import { ESQLParam } from '@esql/_types/types'
 import { Dictionary } from '@spec_utils/Dictionary'
 
 /**
@@ -87,7 +87,7 @@ export interface Request extends RequestBase {
      * To avoid any attempts of hacking or code injection, extract the values in a separate list of parameters. Use question mark placeholders (?) in the query string for each of the parameters.
      * @doc_id esql-query-params
      */
-    params?: Array<FieldValue>
+    params?: Array<ESQLParam>
     /**
      * If provided and `true` the response will include an extra `profile` object
      * with information on how the query was executed. This information is for human debugging