Thanks for this and the other suggestions. This is exactly what I was looking for.
Deron On 12/18/07, Alvaro Herrera <[EMAIL PROTECTED]> wrote: > > Deron escribió: > > 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. > > You can specify it via PGOPTIONS: > > $ PGOPTIONS='-c maintenance_work_mem=1GB' psql > Welcome to psql 8.2.5, the PostgreSQL interactive terminal. > > Type: \copyright for distribution terms > \h for help with SQL commands > \? for help with psql commands > \g or terminate with semicolon to execute query > \q to quit > > alvherre=# show maintenance_work_mem ; > maintenance_work_mem > ---------------------- > 1GB > (1 row) > > alvherre=# \q > > $ psql > Welcome to psql 8.2.5, the PostgreSQL interactive terminal. > > Type: \copyright for distribution terms > \h for help with SQL commands > \? for help with psql commands > \g or terminate with semicolon to execute query > \q to quit > > alvherre=# show maintenance_work_mem ; > maintenance_work_mem > ---------------------- > 16MB > (1 row) > > > > -- > Alvaro Herrera > http://www.CommandPrompt.com/ > PostgreSQL Replication, Consulting, Custom Development, 24x7 support >
