Re: [Proposal] Fully WAL logged CREATE DATABASE - No Checkpoints

On Thu, Mar 31, 2022 at 5:07 AM Andres Freund <andres@anarazel.de> wrote:
>
> Hi,
>
> On 2022-03-29 11:55:05 -0400, Robert Haas wrote:
> > I committed v6 instead.
>
> I was just discussing the WAL prefetching patch with Thomas. A question in
> that discussion made me look at the coverage of REDO for CREATE DATABASE:
> https://coverage.postgresql.org/src/backend/commands/dbcommands.c.gcov.html
>
> Seems there's currently nothing hitting the REDO for
> XLOG_DBASE_CREATE_FILE_COPY (currently line 3019). I think it'd be good to
> keep coverage for that. How about adding a
>   CREATE DATABASE ... STRATEGY file_copy
> to 001_stream_rep.pl?
>
>
> Might be worth adding a test for ALTER DATABASE ... SET TABLESPACE at the same
> time, this patch did affect that path in some minor ways. And, somewhat
> shockingly, we don't have a single test for it.

I will add tests for both of these cases and send the patch.

-- 
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com