Re: [PERFORM] Speeding up JSON + TSQUERY + GIN
| От | Sven R. Kunze |
|---|---|
| Тема | Re: [PERFORM] Speeding up JSON + TSQUERY + GIN |
| Дата | |
| Msg-id | cffa8be6-4e43-7399-2f7a-5686f65acda2@mail.de обсуждение |
| Ответ на | Re: [PERFORM] Speeding up JSON + TSQUERY + GIN (Jeff Janes <jeff.janes@gmail.com>) |
| Ответы |
Re: [PERFORM] Speeding up JSON + TSQUERY + GIN
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| Список | pgsql-performance |
On 27.02.2017 19:22, Jeff Janes wrote:
If by 'permanently', you mean even when you intentionally break things, then no. You will always be able to intentionally break things. There is on-going discussion of an auto-prewarm feature. But that doesn't yet exist; and once it does, a super user will always be able to break it.Presumably you have a use-case in mind other than intentional sabotage of your caches by root. But, what is it? If you reboot the server frequently, maybe you can just throw 'select pg_prewarm...' into an init script?
I didn't express myself well enough. pg_prewarm doesn't help to speed up those queries at all.
Looking at these numbers, I wonder why it takes ~5 secs to answer?
Best,
Sven
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