On mån, 2011-01-17 at 15:33 -0500, Tom Lane wrote:
> Peter Eisentraut <peter_e@gmx.net> writes:
> > On mån, 2011-01-17 at 07:35 +0100, Magnus Hagander wrote:
> >> In fact, aren't there cases where the *length test* also fails?
>
> > Currently, two text values are only equal of strcoll() considers them
> > equal and the bits are the same. So this patch is safe in that regard.
>
> > There is, however, some desire to loosen this.
>
> That isn't ever going to happen, unless you'd like to give up hash joins
> and hash aggregation on text values.
Since citext exists and supports hashing, it's obviously possible
nevertheless.
