SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function icebergS3Cluster (children 1)
       ExpressionList (children 5)
        Literal \'test_cluster_two_shards_localhost\'
        Literal \'http://localhost:11111/test/est\'
        Literal \'clickhouse\'
        Literal \'clickhouse\'
        Set
