Re: XOR operator.
От | Jean-Luc Lachance |
---|---|
Тема | Re: XOR operator. |
Дата | |
Msg-id | 3E860952.3F1058C6@nsd.ca обсуждение исходный текст |
Ответ на | Re: XOR operator. (Stephan Szabo <sszabo@megazone23.bigpanda.com>) |
Ответы |
Re: XOR operator.
|
Список | pgsql-general |
AFAICR A xor B = ( A and not B) or ( not A and B) It is a pain to write, but you can always: CREATE FUNCTION XOR( boolean, boolean) RETURNS boolean as ' RETURN ( $1 and not $2) or ( not $1 and $2); ' LANGUAGE 'plpgsql'; Stephan Szabo wrote: > > On Fri, 28 Mar 2003, Joshua Moore-Oliva wrote: > > > Does postgresql support the xor operator? > > You can get bitwise/binary xor (of bitstrings and integers) with the # > operator AFAICS. > > ---------------------------(end of broadcast)--------------------------- > TIP 2: you can get off all lists at once with the unregister command > (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
В списке pgsql-general по дате отправления: