Horton

Re: 9.2beta1, parallel queries, ReleasePredicateLocks, CheckForSerializableConflictIn in the oprofile

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

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Merlin Moncure <mmoncure@gmail.com>
Cc: Sergey Koposov <koposov@ast.cam.ac.uk>, Jeff Janes <jeff.janes@gmail.com>, Robert Haas <robertmhaas@gmail.com>, pgsql-hackers@postgresql.org
Date: 2012-05-25T15:22:49Z
Lists: pgsql-hackers

Commits

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  1. Improve bulk-insert performance by keeping the current target buffer pinned

Merlin Moncure <mmoncure@gmail.com> writes:
> Hm, what if BufTableHashPartition() was pseudo randomized so that
> different backends would not get the same buffer partition for a
> particular tag?

Huh?  You have to make sure that different backends will find the same
buffer for the same page, so I don't see how that can possibly work.

			regards, tom lane