SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function s3Cluster (children 1)
       ExpressionList (children 2)
        Literal \'test_cluster_two_shards_localhost\'
        Function headers (children 1)
         ExpressionList (children 1)
          Function equals (children 1)
           ExpressionList (children 2)
            Literal \'random_header\'
            Literal \'value\'
