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Re: idea: global temp tables

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "James Mansion" <james(at)mansionfamily(dot)plus(dot)com>
Cc: "Alvaro Herrera" <alvherre(at)commandprompt(dot)com>,"Greg Stark" <stark(at)enterprisedb(dot)com>,"Pavel Stehule" <pavel(dot)stehule(at)gmail(dot)com>,"PostgreSQL Hackers" <pgsql-hackers(at)postgresql(dot)org>,"Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: idea: global temp tables
Date: 2009-04-30 19:32:20
Message-ID: 49F9B674.EE98.0025.0@wicourts.gov (view raw, whole thread or download thread mbox)
Thread:
Lists: pgsql-hackers
James Mansion <james(at)mansionfamily(dot)plus(dot)com> wrote: 
 
> Wouldn't it be cleaner just to defer creation of real files to
support the
> structures associated with a temp table until it i snecessary to
spill the
> data from the backend's RAM?  This data doesn't need to be in
> shared memory and the tables and data aren't visible to any other
> session, so can't they run out of RAM most of the time (or all the
> time if the data in them is short lived)?
 
See this thread for a discussion of the idea:
 
http://archives.postgresql.org/pgsql-hackers/2008-11/msg00342.php
 
-Kevin

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