From: Robert Schnabel <schnabelr@missouri.edu>
To: pgsql-performance <pgsql-performance@postgresql.org>
Subject: Allow sorts to use more available memory
Date: Mon, 12 Sep 2011 12:33:33 -0500
Message-ID: <4E6E426D.7060405@missouri.edu> (raw)
The recent "data warehouse" thread made me think about how I use
work_mem for some of my big queries. So I tried SET work_mem = '4GB'
for a session and got
ERROR: 4194304 is outside the valid range for parameter "work_mem" (64
.. 2097151)
A bit of searching turned up the "Allow sorts to use more available
memory" section of the to-do list. Am I correct in reading that the
max_val is 2GB and regardless of how much RAM I have in the box I'm
stuck with only using 2GB? Am I missing something?
I'm using: PostgreSQL 9.0.4, compiled by Visual C++ build 1500, 64-bit
Windows 2008 Server Enterprise
Thanks,
Bob
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To: pgsql-performance@postgresql.org
Cc: schnabelr@missouri.edu
Subject: Re: Allow sorts to use more available memory
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