SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function sipHash64Keyed (children 1)
     ExpressionList (children 2)
      Function tuple (children 1)
       ExpressionList (children 2)
        Function CAST (children 1)
         ExpressionList (children 2)
          Literal \'2\'
          Literal \'UInt64\'
        Function CAST (children 1)
         ExpressionList (children 2)
          Literal \'2\'
          Literal \'UInt64\'
      Identifier val
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier sipHashKeyed_keys
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier val