Re: POC, WIP: OR-clause support for indexes

On Wed, Jan 31, 2024 at 10:55 AM jian he <jian.universality@gmail.com> wrote:
>
> based on my understanding of
> https://www.postgresql.org/docs/current/xoper-optimization.html#XOPER-COMMUTATOR
> I think you need move commutator check right after the `if
> (get_op_rettype(opno) != BOOLOID)` branch
>
I was wrong about this part. sorry for the noise.


I have made some changes (attachment).
* if the operator expression left or right side type category is
{array | domain | composite}, then don't do the transformation.
(i am not 10% sure with composite)

* if the left side of the operator expression node contains volatile
functions, then don't do the transformation.

* some other minor  cosmetic changes.