| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andres Freund <andres(at)2ndQuadrant(dot)com> |
| Cc: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Missing FIN_CRC32 calls in logical replication code |
| Date: | 2014-10-27 13:30:33 |
| Message-ID: | 18334.1414416633@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Andres Freund <andres(at)2ndQuadrant(dot)com> writes:
> On 2014-10-27 12:51:44 +0200, Heikki Linnakangas wrote:
>> replication/slot.c and replication/logical/snapbuild.c use a CRC on the
>> physical slot and snapshot files. It uses the same algorithm as used e.g.
>> for the WAL. However, they are not doing the finalization step, FIN_CRC32()
>> on the calculated checksums. Not that it matters much, but it's a bit weird
>> and inconsistent, and was probably an oversight.
> Hm. Good catch - that's stupid. I wonder what to do about it. I'm
> tempted to just add a comment about it to 9.4 and fix it on master as
> changing it is essentially a catversion bump. Any objections to that?
Yeah, I think you should get it right the first time. It hardly seems
likely that any 9.4 beta testers are depending on those files to be stable
yet.
regards, tom lane
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