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From: Tomas Vondra <tv@fuzzy.cz>
To: pgsql-hackers@postgresql.org
Subject: Re: GIN improvements part 1: additional information
Date: Sat, 11 Jan 2014 03:15:35 +0100
Message-ID: <52D0A947.6050706@fuzzy.cz> (raw)
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On 8.1.2014 22:58, Alexander Korotkov wrote:
> Thanks for reporting. Fixed version is attached.

I've tried to rerun the 'archie' benchmark with the current patch, and
once again I got

   PANIC:  could not split GIN page, didn't fit

I reran it with '--enable-cassert' and with that I got

TRAP: FailedAssertion("!(ginCompareItemPointers(&items[i - 1],
                   &items[i]) < 0)", File: "gindatapage.c", Line: 149)
LOG:  server process (PID 5364) was terminated by signal 6: Aborted
DETAIL:  Failed process was running: INSERT INTO messages ...

so the assert in GinDataLeafPageGetUncompressed fails for some reason.

I can easily reproduce it, but my knowledge in this area is rather
limited so I'm not entirely sure what to look for.

regards
Tomas


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