Re: Case insensitive unique constraint - Mailing list pgsql-general

From Klint Gore
Subject Re: Case insensitive unique constraint
Date
Msg-id 42D61D1123B.BDB0KG@129.180.47.120
Whole thread Raw
In response to Case insensitive unique constraint  (Rob Brenart <postgresql@oculardata.com>)
Responses Re: Case insensitive unique constraint
List pgsql-general
On Thu, 14 Jul 2005 02:14:16 -0500, Rob Brenart <postgresql@oculardata.com> wrote:
> I have a simple table to store account names... I want each name to be
> unique in a case insensitive manner... but I want the case the user
> enters to be remembered so I can't do a simple lower() on the data's way in.
>
> Is there an easy way to go about this? Am I about to write my first
> server side function for postgresql?

how about
  create unique index tbl_iname_idx on tbl (lower(name_field))

klint.

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