Ian,
> I am doing a query where I need to sort by a column that may be NULL
> because it is coming from an OUTER JOIN. I noticed a difference between
> PostgreSQL and other databases about where NULLs show up. It seems that
> with Postgres, NULLs are sorted after other values. Other databases
> sort them before.
Not all other databases. It really depends.
> Is there a way to replace the NULLs with
> empty strings?
Sure: UPDATE table SET column = '' WHERE column IS NULL
--
Josh Berkus
josh@agliodbs.com
Aglio Database Solutions
San Francisco