I see a lot of suggestions to increase maintenance work mem if running pg_restore. This is to help with the index creation and initial sort from what I understand. A few tests I ran does show this helps. Does anyone know if there is a way to only "temporarily" set this setting? I have some DBs that are bloated and I have a script to run off hours (I don't like working late). This uses pg_dump and pg_restore to recover the disk space. I found that this is usually faster than 'vacuum full', and is useful in some cases.
I know I can set this for my current session dynamically "set maintenance_work_mem = xxxxx", but it seems that the only way I can do this for pg_restore is to update the configuration, reload and then change it back when the script completes and reload again. Thanks Deron
