"Joerg Kiegeland" <kiegeland(at)ikv(dot)de> writes:
> The following bug has been logged online:
> Bug reference: 4806
> Logged by: Joerg Kiegeland
> Email address: kiegeland(at)ikv(dot)de
> PostgreSQL version: PostgreSQL8.3.7
> Operating system: Windows XP
> Description: Bug with GiST index and empty integer array?
> Details:
> The GiST index seems not to be able to find empty integer arrays.
Just for the archives' sake: this problem is now fixed, in both
GiST and GIN indexes, for 9.1.
regards, tom lane