SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function hex (children 1)
     ExpressionList (children 1)
      Function sipHash128ReferenceKeyed (children 1)
       ExpressionList (children 2)
        Identifier key
        Identifier val
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier sipHashKeyed_keys
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier key
