Well, I've been unsuccessful so far on creating a standalone test. I have put some scripting in place to capture some additional information on the server with the out of memory issues. I have a script which just periodically dumps the output of free -m to a text file. So, the output of free -m immediately before and after the out of memory error looks like this: Just before: total used free shared buff/cache available Mem: 14877 2978 132 3553 11766 7943 Swap: 0 0 0 Just after: total used free shared buff/cache available Mem: 14877 2946 649 3548 11280 7982 Swap: 0 0 0 If I have nearly 8 GB of memory left, why am I getting out of memory errors? Thanks, Greig -- Sent from: http://www.postgresql-archive.org/PostgreSQL-general-f1843780.html