Re: Duplicate-key-detection failure case found in btree

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Duplicate-key-detection failure case found in btree
Date: 2002-01-01 20:49:31
Message-ID: 200201012049.g01KnVG07172@candle.pha.pa.us
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> The fix is to acquire the next page's write lock before we drop the
> current page's. This is deadlock-free since no writer ever tries
> to chain write-locks to the left (in fact the same thing is done in
> the page split logic).
>
> I am not convinced that this explains any of the field reports of
> duplicate rows that we've seen, but it's clearly a bug. Will commit
> the fix shortly.

Sounds good to me. Good find.

--
Bruce Momjian | http://candle.pha.pa.us
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