Re: Fw: Speed diff cause by multi-byte support
От | Bruce Momjian |
---|---|
Тема | Re: Fw: Speed diff cause by multi-byte support |
Дата | |
Msg-id | 200203281628.g2SGSrc09479@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Fw: Speed diff cause by multi-byte support ("Arsalan Zaidi" <azaidi@directi.com>) |
Список | pgsql-general |
So you are asking about compiling with multibyte and then using ASCII for some initdb's and Unicode for others. There are certain routines that get replaced for multibyte/unicode which are slower than the ASCII-only alternatvies, and these do apply to all databases, whether initdb'ed with multibyte or not. There is some penalty, and that is why we don't enable multibyte by default. --------------------------------------------------------------------------- Arsalan Zaidi wrote: > > I read somewhere in the docs that turning on multi-byte support slows PG > > down. > > > > I was wondering. If I compile multi-byte support in and then use PG to > > access > > both a db initdb'ed with supprot for UNICODE and another one which uses > > plain > > ASCII, will there be a difference in speed between the two? > > > > Will PG run as normal with the ASCII db and slower with the UNICODE db or > > slower with both? > > > > Thanks in advance. > > > > --Arsalan. > > > > ------------------------------------------------------------------- > > People often hate those things which they do not know, or cannot > understand. > > --Ali Ibn Abi Talib (A.S.) > > > > > > ---------------------------(end of broadcast)--------------------------- > > TIP 5: Have you checked our extensive FAQ? > > > > http://www.postgresql.org/users-lounge/docs/faq.html > > > > > ---------------------------(end of broadcast)--------------------------- > TIP 3: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly > -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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