Robin Chauhan <robin(dot)chauhan(at)gmail(dot)com> writes:
> I installed PostGIS, which appeared to work just fine. The I
> installed contrib/btree_gist, and since then I've had issues.
> PostgreSQL 7.3.2 on i686-pc-linux-gnu, compiled by GCC egcs-2.91.66
> Would you have any advice for me?
Try a more modern Postgres. I note in the CVS logs bug fixes for NULLs
in gist indexes as recently as 7.4.6.
If you can reproduce this on 7.4.7 or 8.0 then I'd be interested to look
at a test case ...
regards, tom lane