Re: BUG #9430: Strange error during pg_dump with concurrent alter table working

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: maxim(dot)boguk(at)gmail(dot)com
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #9430: Strange error during pg_dump with concurrent alter table working
Date: 2014-03-04 00:00:49
Message-ID: 20591.1393891249@sss.pgh.pa.us
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maxim(dot)boguk(at)gmail(dot)com writes:
> [ pg_dump sometimes fails in the presence of concurrent DDL ]

That's a known issue, unfortunately, and unlikely to go away anytime soon.
It's possible that the 9.4 changes to use MVCC scans for catalog access
will make it better, but I'm not sure that'll be sufficient to fix
everything.

regards, tom lane

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