Christopher Kings-Lynne <chriskl@familyhealth.com.au> writes:
> Is it possible to make a composite GiST index? I want to create an
> index on a txtidx and a timestamp column - is that at all possible?
Yeah. If you have a problem with that, it's grounds for a bug report.
Note though that GiST can't handle entries with NULL in the first
column, so it's best to put a NOT NULL column first if possible.
regards, tom lane