Horton

Re: [Proposal] Global temporary tables

Prabhat Sahu <prabhat.sahu@enterprisedb.com>

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From: Prabhat Sahu <prabhat.sahu@enterprisedb.com>
To: 曾文旌 <wenjing.zwj@alibaba-inc.com>
Cc: tushar <tushar.ahuja@enterprisedb.com>, Pavel Stehule <pavel.stehule@gmail.com>, Robert Haas <robertmhaas@gmail.com>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, Konstantin Knizhnik <k.knizhnik@postgrespro.ru>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, 蔡松露(子嘉) <zijia@taobao.com>, "Cai, Le" <le.cai@alibaba-inc.com>, 萧少聪(铁庵) <shaocong.xsc@alibaba-inc.com>
Date: 2020-04-01T03:47:18Z
Lists: pgsql-hackers

Commits

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.

On Wed, Apr 1, 2020 at 8:52 AM 曾文旌 <wenjing.zwj@alibaba-inc.com> wrote:

>
>
> 2020年3月31日 下午9:59，Prabhat Sahu <prabhat.sahu@enterprisedb.com> 写道：
>
> Hi Wenjing,
> Thanks for the new patch.
> I saw with the patch(gtt_v23.patch), we are supporting the new concept
> "global temporary sequence"(i.e. session-specific sequence), is this
> intentional?
>
> It was supported in earlier versions,
>
yes.

This causes the sequence built into the GTT to automatically become a
> "global temp sequence",
> Such as create global temp table (a serial);
> Like GTT, the global temp sequnce is used individually for each session.
>
> Recently, I added the global temp sequence syntax so that it can be
> created independently.
> The purpose of this is to enable such sequence built into the GTT to
> support pg_dump and pg_restore.
>

Thanks for the explanation.

-- 

With Regards,
Prabhat Kumar Sahu
EnterpriseDB: http://www.enterprisedb.com