Re: Using 128-bit integers for sum, avg and statistics aggregates
От | Andres Freund |
---|---|
Тема | Re: Using 128-bit integers for sum, avg and statistics aggregates |
Дата | |
Msg-id | 20150318230740.GC26995@alap3.anarazel.de обсуждение исходный текст |
Ответ на | Re: Using 128-bit integers for sum, avg and statistics aggregates (Peter Geoghegan <pg@heroku.com>) |
Ответы |
Re: Using 128-bit integers for sum, avg and statistics aggregates
|
Список | pgsql-hackers |
On 2015-03-18 15:59:52 -0700, Peter Geoghegan wrote: > Okay. Attached revision has a few tweaks that reflect the status of > int128/uint128 as specialized types that are basically only useful for > this optimization, or other similar optimizations on compilers that > either are GCC, or aim to be compatible with it. I don't think > Andreas' V9 reflected that sufficiently. Given that we don't rely on C99, I don't think that actually matters. Lots of our platforms build on pre C99 compilers... I think it makes sense to say that this currently only tests for a gcc extension and might be extended in the future. But nothing more. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services
В списке pgsql-hackers по дате отправления: