Group TEXT field failed in Elasticsearch Adapter

@Test void testGroupTextField() {
    CalciteAssert.that()
        .with(newConnectionFactory())
        .query("select cat6 from view group by cat6")
        .returns("EXPR$0=1\n");
  }

{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [cat6] in order to load field data by uninverting the inverted index. Note that this can use significant memory."}],......(useless message),"status":400}