Re: [Proposal] Global temporary tables - Mailing list pgsql-hackers

2020年2月24日 下午5:44，Prabhat Sahu <prabhat.sahu@enterprisedb.com> 写道：

On Fri, Feb 21, 2020 at 9:10 PM 曾文旌(义从) <wenjing.zwj@alibaba-inc.com> wrote:

Hi,
I have started testing the "Global temporary table" feature,

That's great, I see hope.
from "gtt_v11-pg13.patch". Below is my findings:

-- session 1:
postgres=# create global temporary table gtt1(a int);
CREATE TABLE

-- seeeion 2:
postgres=# truncate gtt1 ;
ERROR:  could not open file "base/13585/t3_16384": No such file or directory

is it expected?

Oh ,this is a bug, I fixed it.

Thanks for the patch.

I have verified the same, Now the issue is resolved with v12 patch.

Kindly confirm the below scenario:

postgres=# create global temporary table gtt1 (c1 int unique);
CREATE TABLE

postgres=# create global temporary table gtt2 (c1 int references gtt1(c1) );
ERROR:  referenced relation "gtt1" is not a global temp table

postgres=# create table tab2 (c1 int references gtt1(c1) );
ERROR:  referenced relation "gtt1" is not a global temp table

Thanks,

Prabhat Sahu