Horton

Re: BUG #15309: ERROR: catalog is missing 1 attribute(s) for relid 760676 when max_parallel_maintenance_workers > 0

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Peter Geoghegan <pg@bowt.ie>
Cc: deathlock13@gmail.com, PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>, Robert Haas <robertmhaas@gmail.com>
Date: 2018-08-09T17:34:21Z
Lists: pgsql-bugs 
Peter Geoghegan <pg@bowt.ie> writes:
> Attached are two patches that each fix the issue -- a conservative
> patch for v11, as well as a patch that actually propagates relmapper.c
> state, for the master branch. It would be good to get a +1 on both
> before pushing.

I took a quick look at these.  The v11 patch seems OK as far as it goes,
but I wonder if you shouldn't also include the RelationMapUpdateMap
hunk from the master patch, ie adding rejection of map changes in parallel
mode.

I don't have any objection to the master patch, but it'd be good to get
a +1 from someone who's spent more time with the parallelism
infrastructure than I have.

			regards, tom lane

Commits

  1. Handle parallel index builds on mapped relations.

  2. Transfer state pertaining to pending REINDEX operations to workers.