On Mar 17, 2013, at 6:35 AM, Thorbjørn Weidemann <thorbjo...@weidemann.name> wrote:
> Hi David, > > I found your email-address on > http://www.postgresql.org/docs/9.2/static/citext.html. I hope it's ok to > contact you this way. > I would like to thank you for taking the time to make citext available for > Postgres, and I hope you can help me with this problem. > > In my workplace we are considering using citext in a Progress -> Postgresql > conversion that is underway. The Progress database always searches > case-insensitively. > > Simply creating a normal btree index on a citext column makes = searches use > the index, but I have not been able to create an index that can be used for > searches like > select <column> from <table> where <column> LIKE 'ide%'; > > During this investigation I found out that even for varchar columns I have to > append the varchar_pattern_ops opclass to the column when creating the index > for it to be used for LIKE searches. But there is no citext_pattern_ops > opclass. > > Is there currently any way to create an index that can be used to speed up > searches like the one above? > If not, do you have any idea how it might be implemented? Perhaps I could > give it a try myself. > > Thank you in advance for any suggestions you might have. I would think that text_pattern_ops would work, no? Best, David -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
