Horton

Re: [Proposal] Global temporary tables

Pavel Stehule <pavel.stehule@gmail.com>

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From: Pavel Stehule <pavel.stehule@gmail.com>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: wenjing@gmail.com, Andrew Bille <andrewbille@gmail.com>, Tony Zhu <Tony.zhu@ww-it.cn>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-02-27T03:17:52Z
Lists: pgsql-hackers

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Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. PageAddItemExtended(): Add LP_UNUSED assertion.

  2. Remove temporary files after backend crash

  3. Fix comment in indexing.c

  4. Fix failure to ignore leftover temp tables after a server crash.

Hi

You redirect stats from pg_class and pg_statistics to a local hash table.
> This is pretty hairy :(
> I guess you'd also need to handle pg_statistic_ext and ext_data.
> pg_stats doesn't work, since the data isn't in pg_statistic - it'd need to
> look
> at pg_get_gtt_statistics.
>

Without this, the GTT will be terribly slow like current temporary tables
with a lot of problems with bloating of pg_class, pg_attribute and
pg_depend tables.

Regards

Pavel