Re: full-text indexing
От | Brett W. McCoy |
---|---|
Тема | Re: full-text indexing |
Дата | |
Msg-id | Pine.LNX.4.10.10004182343360.9087-100000@chapelperilous.net обсуждение исходный текст |
Ответ на | full-text indexing ("Brett W. McCoy" <bmccoy@chapelperilous.net>) |
Список | pgsql-general |
On Tue, 18 Apr 2000, Bruce Momjian wrote: > Let me be specific. The problem is that without cluster, your fragment > rows are together in the index, but are all over the heap table, so you > have to read in all those disk buffers, and that is slow. With cluster, > most of your matching fragments are on the same disk page, so one access > gets them all. > > The nightly CLUSTER is a pain, but the only way I ever got it working > quickly. This is pretty painless compared to what I've had to do getting big full-text systems like Excalibur to work. I can deal with a nightly cluster. Brett W. McCoy http://www.chapelperilous.net --------------------------------------------------------------------------- Twenty two thousand days. Twenty two thousand days. It's not a lot. It's all you've got. Twenty two thousand days. -- Moody Blues, "Twenty Two Thousand Days"
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