Re: PREPARE / EXECUTE
От | Karel Zak |
---|---|
Тема | Re: PREPARE / EXECUTE |
Дата | |
Msg-id | 20021024081820.B13536@zf.jcu.cz обсуждение исходный текст |
Ответ на | Re: PREPARE / EXECUTE (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-hackers |
On Wed, Oct 23, 2002 at 11:02:14AM -0400, Tom Lane wrote: > Hans-Jürgen Schönig <postgres@cybertec.at> writes: > > I wonder if there is a way to store a parsed/rewritten/planned query in > > a table so that it can be loaded again. > > The original version of the PREPARE patch used a shared-across-backends > cache for PREPAREd statements. We rejected that for a number of > reasons, one being the increased difficulty of keeping such a cache up > to date. I think actually storing the plans on disk would have all the > same problems, but worse. Right. There's solution: persisten backend (for example like classicapache). This solve problem with lifetime of all persistentcaches.It's already in TODO. Karel -- Karel Zak <zakkr@zf.jcu.cz>http://home.zf.jcu.cz/~zakkr/C, PostgreSQL, PHP, WWW, http://docs.linux.cz, http://mape.jcu.cz
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