Re: [Proposal] Global temporary tables

On Tue, Mar 3, 2020 at 2:11 PM 曾文旌(义从) <wenjing(dot)zwj(at)alibaba-inc(dot)com> wrote:

>
>
>
> I fixed in global_temporary_table_v16-pg13.patch.
>

Thank you Wenjing for the patch.
Now we are getting corruption with GTT with below scenario.

postgres=# CREATE GLOBAL TEMPORARY TABLE gtt1(c1 bigint, c2 bigserial) on
commit delete rows;
CREATE TABLE
postgres=# CREATE GLOBAL TEMPORARY TABLE gtt2(c1 bigint, c2 bigserial) on
commit preserve rows;
CREATE TABLE
postgres=# \q

[edb(at)localhost bin]$ echo "1
> 2
> 3
> "> t.dat

[edb(at)localhost bin]$ ./psql postgres
psql (13devel)
Type "help" for help.

postgres=# \copy gtt1(c1) from 't.dat' with csv;
ERROR: could not read block 0 in file "base/13585/t3_16384": read only 0
of 8192 bytes
CONTEXT: COPY gtt1, line 1: "1"

postgres=# \copy gtt2(c1) from 't.dat' with csv;
ERROR: could not read block 0 in file "base/13585/t3_16390": read only 0
of 8192 bytes
CONTEXT: COPY gtt2, line 1: "1"

NOTE: We end with such corruption for "bigserial/smallserial/serial"
datatype columns.

--

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