On Fri, Jan 20, 2017 at 12:59 AM, Robert Haas <robertmhaas@gmail.com> wrote:
> On Thu, Jan 19, 2017 at 4:26 AM, Amit Kapila <amit.kapila16@gmail.com> wrote:
>> Fixed.
>
>
> If all of that were no issue, the considerations in
> TargetListSupportsBackwardScan could be a problem, too. But I think
> there shouldn't be any issue having Gather just continue to return
> false.
>
You are right. I have added that code under the assumption that if
the underlying node (in this case index scan) can support backward
scan, gather can also support. I forgot/missed that
ExecSupportsBackwardScan is to support cursors operations. Will fix
in next version of patch.
--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com