Re: BUG #4412: Check constraints cannot be added to the table for fields that are mixed case

On Tue, 9 Sep 2008, Kevin wrote:

> The following bug has been logged online:
>
> Bug reference: 4412
> Logged by: Kevin
> Email address: kevin(at)rtvision(dot)com
> PostgreSQL version: 8.0.15
> Operating system: Gentoo Linux
> Description: Check constraints cannot be added to the table for
> fields that are mixed case
> Details:
>
> Check constraints cannot be added to the table for fields that are mixed
> case.
>
> Example - field employeeName in table Employees
> ---------
> ALTER TABLE "Employees" ADD CONSTRAINT "employeeNameTest" CHECK
> (employeeName != 'Kevin')

I don't have 8.0 around to test, but I think that should be
("employeeName" != 'Kevin'). If you created the table with mixed-case
columns in double quotes or used a tool which double quoted them for you,
then you must double quote the column name when it's referenced, otherwise
the names are case-folded.