SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function concat (alias s1) (children 1)
     ExpressionList (children 3)
      Literal \'Hello, \'
      Function unhex (children 1)
       ExpressionList (children 1)
        Literal \'a0\'
      Literal \' World\'
    Function concat (alias s2) (children 1)
     ExpressionList (children 2)
      Literal \'Hello, \'
      Function unhex (children 1)
       ExpressionList (children 1)
        Literal \'a0\'
    Function concat (alias s3) (children 1)
     ExpressionList (children 2)
      Function unhex (children 1)
       ExpressionList (children 1)
        Literal \'a0\'
      Literal \' World\'
 Identifier JSONCompact
