SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Identifier x
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function format (children 1)
       ExpressionList (children 2)
        Literal \'JSONEachRow\'
        Literal \'{"x" : [1, 2, 3]}, {"x" : {"a" : 42}}\'
 Identifier Pretty
