I’d be grateful for some insight into the VACUUM functionality within PostgreSQL 9.3. I read through the documentation and searched around a bit but could not find a definitive answer to this.
I’m setting up a weekly DB maintenance job for a 9.3 server.
Part of this will be a VACUUM FULL. It’s a smallish DB and I have a decent weekend maintenance window so I can run the FULL without any issues.
Is there any point in adding the ANALYZE option to the command?
According to the 9.3 documentation:
VACUUM FULLrewrites the entire contents of the table into a new disk
file with no extra space, allowing unused space to be returned to the operating system.
If the table is completely recreated then do I need to specifically ask for ANALYZE to happen or are the statistics updated automatically as the rows are written to the new version of the table?