Horton

[Proposal] Global temporary tables

曾文旌 (义从) <wenjing.zwj@alibaba-inc.com>

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From: 曾文旌(义从) <wenjing.zwj@alibaba-inc.com>
To: tushar <tushar.ahuja@enterprisedb.com>
Cc: "Prabhat Sahu" <prabhat.sahu@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: 2020-03-17T03:44:15Z
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.

Attachments


> 2020年3月13日 下午8:40，tushar <tushar.ahuja@enterprisedb.com> 写道：
> 
> On 3/9/20 10:01 PM, 曾文旌(义从) wrote:
>> Fixed in global_temporary_table_v18-pg13.patch.
> 
> Thanks Wenjing.
> 
> I am getting this error  "ERROR:  could not open file "base/13589/t3_16440": No such file or directory" if max_active_global_temporary_table set to 0
> 
> Please refer this scenario -
> 
> postgres=# create global temp table  tab1 (n int ) with ( on_commit_delete_rows='true');
> CREATE TABLE
> postgres=# insert into tab1 values (1);
> INSERT 0 1
> postgres=# select * from tab1;
>  n
> ---
> (0 rows)
> 
> postgres=# alter system set max_active_global_temporary_table=0;
> ALTER SYSTEM
> postgres=# \q
> [tushar@localhost bin]$ ./pg_ctl -D data/ restart -c -l logs123
> 
> waiting for server to start.... done
> server started
> 
> [tushar@localhost bin]$ ./psql postgres
> psql (13devel)
> Type "help" for help.
> 
> postgres=# insert into tab1 values (1);
> ERROR:  could not open file "base/13589/t3_16440": No such file or directory
> postgres=#
Thanks for review
It is a bug, I fixed in global_temporary_table_v20-pg13.patch


Wenjing