Re: Why Not MySQL?
От | Mitch Vincent |
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Тема | Re: Why Not MySQL? |
Дата | |
Msg-id | 002101bfb619$f33a8700$0300000a@doot.org обсуждение исходный текст |
Ответ на | Re: Why Not MySQL? (Bruce Momjian <pgman@candle.pha.pa.us>) |
Ответы |
Re: Why Not MySQL?
|
Список | pgsql-hackers |
> Well, drat. Looks like 7.0's query plan is slower :-(. There's > something fishy about the numbers for 6.5.3 though --- how could it have > done that query with zero blocks read? Are you sure you are comparing > apples to apples here? I wonder whether the 6.5 system already had the > tables cached in kernel disk buffers while 7.0 was working from a > standing start and had to physically go to the disk. This is very possible as the 6.5.3 PG is running on the production server which is constantly being queried. >Also, did both > versions have the same -B and -S settings? I didn't specify any -B or -S settings so both are using their respective defaults.. Thanks!
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