Re: Deprecating Hash Indexes

On Mon, Oct 15, 2012 at 10:13:24AM -0400, Robert Haas wrote:
> On Sun, Oct 14, 2012 at 9:45 AM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> > * Put WARNINGs in the docs against the use of hash indexes, backpatch
> > to 8.3. CREATE INDEX gives no warning currently, though Index Types
> > does mention a caution.
>
> I'd be in favor of adding such warnings to the documentation if they
> are not there already, and possibly even warning on CREATE INDEX ..
> USING hash(). I don't think I'd go so far as to say that we should
> imply that they'll be removed in a future release. Given how deeply
> intertwined they are with the planner, I doubt that that will happen;
> and I think there is enough interest in the technology that it's
> likely to eventually be fixed.
>
+1 for adding more warnings but do not deprecate them.

Regards,
Ken