Re: pgsql: Add contrib/pg_walinspect.

Hi Jeff,

On Fri, Apr 08, 2022 at 07:27:44AM +0000, Jeff Davis wrote:
> Add contrib/pg_walinspect.
>
> Provides similar functionality to pg_waldump, but from a SQL interface
> rather than a separate utility.

The tests of pg_walinspect look unstable:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=topminnow&dt=2022-04-25%2001%3A48%3A47

SELECT COUNT(*) >= 0 AS ok FROM
pg_get_wal_records_info_till_end_of_wal(:'wal_lsn1');
- ok
-----
- t
-(1 row)
-
+ERROR: could not read WAL at 0/1903E40

This points out at ReadNextXLogRecord(), though I would not blame this
test suite as you create a physical replication slot beforehand.
Could this be an issue related to the addition of the circular WAL
decoding buffer, aka 3f1ce97?

I am adding an open item about that.

Thanks,
--
Michael