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)
        Function tuple (children 1)
         ExpressionList (children 2)
          Function CAST (children 1)
           ExpressionList (children 2)
            Literal \'0\'
            Literal \'UInt64\'
          Function materialize (children 1)
           ExpressionList (children 1)
            Function CAST (children 1)
             ExpressionList (children 2)
              Literal \'0\'
              Literal \'UInt64\'
        Identifier a
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier sipHashKeyed_keys
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier a
