Re: Implementation of global temporary tables?
| От | Pavel Stehule |
|---|---|
| Тема | Re: Implementation of global temporary tables? |
| Дата | |
| Msg-id | CAFj8pRCejhxoaVj9t-Z8cWKw7G+3yru738530wv0Kwpy85dqQg@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Implementation of global temporary tables? (Gavin Flower <GavinFlower@archidevsys.co.nz>) |
| Ответы |
Re: Implementation of global temporary tables?
|
| Список | pgsql-hackers |
2015-07-20 5:33 GMT+02:00 Gavin Flower <GavinFlower@archidevsys.co.nz>:
On 20/07/15 15:00, Pavel Stehule wrote:Just wondering...
2015-07-19 21:39 GMT+02:00 Josh Berkus <josh@agliodbs.com <mailto:josh@agliodbs.com>>:
Pavel, All:
Just to be clear, the idea of a global temp table is that the
table def
is available to all users, but the data is private to each session?
yes.
Pavel
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
Would it be difficult to add the ability for one user to share the contents with a list of named other users (roles)?
Probably it is possible, but not for temporary data - short data are in process memory, so it are not accessible from other sessions.
This sharing tables needs:
1. some infrastructure to hold data about sharing - who can share with what
2. who will clean data? temporary data are cleaned on end of transaction or end of session
3. data should be saved in shared memory instead process memory
So it is possible, but partially different
-Gavin
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