SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function values (children 1)
       ExpressionList (children 3)
        Literal \'arr Tuple(Int32, JSON)\'
        Literal \'(1, \\\'{"y" : 1}\\\')\'
        Literal \'(2, \\\'{"y" : 2}\\\')\'
 Identifier JSONEachRow
