On Thu, 2012-03-22 at 16:26 -0400, Edward W. Rouse wrote:
> I am currently using lower(column) = '' for matching case insensitive. I
> know that there are ways to do this with regular expressions too. I recently
> noticed that including even one lower causes severe performance issues (from
> 290ms to over 80Kms).
>
Probably because it cannot use the index anymore. Try creating an index
on lower(column), and see if it helps.
--
Guillaume
http://blog.guillaume.lelarge.info
http://www.dalibo.com