Search Postgresql Archives

Re: Best way to store case-insensitive data?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 6/10/2010 3:50 PM, Mike Christensen wrote:
I have a column called "email" that users login with, thus I need to
be able to lookup email very quickly.  The problem is, emails are
case-insensitive.  I want foo@xxxxxxx to be able to login with
FOO@xxxxxxx as well.  There's two ways of doing this, that I can see:

1) Every time I lookup an email in the database, do a case-insensitive
ilike, or cast both sides with LOWER().  I think both are slow,
correct?
2) Every time the user updates or saves their email, store it in
lowercase, and every time I lookup an email, pass in a lowercase
email.  This is somewhat of a bug farm because one might miss some
little spot in a piece of code where an email is compared or updated.

Is there any way to tell postgres to always store data in lowercase
form, or just have a flat out case-insensitive column?  Thanks!

Mike


There is citext in contrib, it makes case insensitive text columns.

-Andy

--
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]

  Powered by Linux