SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function JSONExtract (children 1)
     ExpressionList (children 3)
      Literal \'{"a" : "2001:0db8:85a3:0000:0000:8a2e:0370:7334"}\'
      Literal \'a\'
      Literal \'IPv6\'
