SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Identifier v
    Function variantElement (children 1)
     ExpressionList (children 2)
      Identifier v
      Literal \'IPv6\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function format (children 1)
       ExpressionList (children 3)
        Identifier JSONEachRow
        Literal \'v Variant(String, IPv6)\'
        Literal \'{"v" : null}, {"v" : "string"}, {"v" : "2001:0db8:85a3:0000:0000:8a2e:0370:7334"}\'
 Identifier JSONEachRow
