Re: [Proposal] Global temporary tables

> 2020年2月24日 下午5:44，Prabhat Sahu <prabhat(dot)sahu(at)enterprisedb(dot)com> 写道：
>
> On Fri, Feb 21, 2020 at 9:10 PM 曾文旌(义从) <wenjing(dot)zwj(at)alibaba-inc(dot)com <mailto:wenjing(dot)zwj(at)alibaba-inc(dot)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

GTT supports foreign key constraints in global_temporary_table_v13-pg13.patch

Wenjing