Re: Feature request (or at least discussion): enable autovaccum ontemp tables
| От | Ivan Voras |
|---|---|
| Тема | Re: Feature request (or at least discussion): enable autovaccum ontemp tables |
| Дата | |
| Msg-id | CAF-QHFU+gakORnJ8KwysgYZMCBGvRoqUcxi8K_qhEFnkRZsUgA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Feature request (or at least discussion): enable autovaccum on temp tables (Andrew Gierth <andrew@tao11.riddles.org.uk>) |
| Ответы |
Re: Feature request (or at least discussion): enable autovaccum ontemp tables
Re: Feature request (or at least discussion): enable autovaccum ontemp tables |
| Список | pgsql-general |
Hi,
On Fri, 31 May 2019 at 17:43, Andrew Gierth <andrew@tao11.riddles.org.uk> wrote:
>>>>> "Ivan" == Ivan Voras <ivoras@gmail.com> writes:
Ivan> Since AFAIK temp tables are very close to unlogged ordinary
Ivan> tables, what would stop this feature from being implemented?
The key difference between temp tables and other tables is that temp
table data does not use the shared_buffers but is buffered only in
backend-local memory.
This means that other processes (like, say, an autovacuum process) can
not access the content of temp tables. So what you want is not possible.
Understood.
So, a related question, since we have dozens of temp tables and a lot of code, is there a way to look up what temp tables are being created by the current session, so I can do a VACUUM or ANALYZE on all of them in bulk? I know I can inspect pg_temp_* schema, but how to figure out which one is from the current session?
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