Re: pg_sequence_last_value() for unlogged sequences on standbys
От | Nathan Bossart |
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Тема | Re: pg_sequence_last_value() for unlogged sequences on standbys |
Дата | |
Msg-id | 20240503204908.GA1737291@nathanxps13 обсуждение исходный текст |
Ответ на | Re: pg_sequence_last_value() for unlogged sequences on standbys (Michael Paquier <michael@paquier.xyz>) |
Ответы |
Re: pg_sequence_last_value() for unlogged sequences on standbys
Re: pg_sequence_last_value() for unlogged sequences on standbys |
Список | pgsql-hackers |
On Wed, May 01, 2024 at 12:39:53PM +0900, Michael Paquier wrote: > However, it seems to me that you should also drop the > pg_is_other_temp_schema() in system_views.sql for the definition of > pg_sequences. Doing that on HEAD now would be OK, but there's nothing > urgent to it so it may be better done once v18 opens up. Note that > pg_is_other_temp_schema() is only used for this sequence view, which > is a nice cleanup. IIUC this would cause other sessions' temporary sequences to appear in the view. Is that desirable? > By the way, shouldn't we also change the function to return NULL for a > failed permission check? It would be possible to remove the > has_sequence_privilege() as well, thanks to that, and a duplication > between the code and the function view. I've been looking around a > bit, noticing one use of this function in check_pgactivity (nagios > agent), and its query also has a has_sequence_privilege() so returning > NULL would simplify its definition in the long-run. I'd suspect other > monitoring queries to do something similar to bypass permission > errors. I'm okay with that, but it would be v18 material that I'd track separately from the back-patchable fix proposed in this thread. -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
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