Horton

Re: Offline enabling/disabling of data checksums

Michael Banck <michael.banck@credativ.de>

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From: Michael Banck <michael.banck@credativ.de>
To: Magnus Hagander <magnus@hagander.net>, Sergei Kornilov <sk@zsrv.org>
Cc: Michael Paquier <michael@paquier.xyz>, Fabien COELHO <coelho@cri.ensmp.fr>, PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>
Date: 2019-03-13T11:29:21Z
Lists: pgsql-hackers

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Hi,

Am Mittwoch, den 13.03.2019, 12:24 +0100 schrieb Magnus Hagander:
> > Also we support ./configure --with-blocksize=(not equals 8)? make
> > check on HEAD fails for me. If we support this - i think we need
> > recheck BLCKSZ between compiled pg_checksum and used in PGDATA
> 
> You mean if the backend and pg_checksums is built with different
> blocksize? Yeah, that sounds like something which is a cheap check and
> should be done. 

I've been doing that in my pg_checksums fork for a while (as it further
removed from the Postgres binaries) but yeah we should check for that as
well in pg_checksums, see attached patch.


Michael

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Commits

  1. Reorganize Notes section in documentation of pg_checksums

  2. Add option -N/--no-sync to pg_checksums

  3. Add options to enable and disable checksums in pg_checksums

  4. Refactor more code logic to update the control file

  5. Rename pg_verify_checksums to pg_checksums

  6. Fix cross-version compatibility checks of pg_verify_checksums

  7. Add routine able to update the control file to src/common/