Horton

Re: WIP patch for parallel pg_dump

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

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrew Dunstan <andrew@dunslane.net>
Cc: Robert Haas <robertmhaas@gmail.com>, Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>, Greg Smith <greg@2ndquadrant.com>, Joachim Wieland <joe@mcknight.de>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2010-12-06T17:28:10Z
Lists: pgsql-hackers 
Andrew Dunstan <andrew@dunslane.net> writes:
> Yeah. I'm still not convinced that using shared memory is a bad way to 
> pass these around. Surely we're not talking about large numbers of them. 
> What am I missing here?

They're not of a very predictable size.

Robert's idea of publish() returning a temp file identifier, which then
gets removed at transaction end, might work all right.

			regards, tom lane