Horton

Re: v13: CLUSTER segv with wal_level=minimal and parallel index creation

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

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: pgsql-hackers@postgresql.org, Noah Misch <noah@leadboat.com>, Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Date: 2020-09-07T04:33:03Z
Lists: pgsql-hackers 
Justin Pryzby <pryzby@telsasoft.com> writes:
> This is easily reproduced, at least on pg_attribute

Yeah, duplicated here.  The assertion (not SIGSEGV) is in code
added by c6b92041d, so it seems clearly an open issue for v13.

I did not check to see what happens in a non-assert build.

			regards, tom lane

Commits

  1. Fix rd_firstRelfilenodeSubid for nailed relations, in parallel workers.

  2. Skip WAL for new relfilenodes, under wal_level=minimal.