On Thu, Apr 11, 2019 at 6:12 PM Peter Billen <peter(dot)billen(at)gmail(dot)com> wrote:
>
> I believe we are after multiple issues/improvements:
>
> 1. Could we extend
> https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=fcff8a575198478023ada8a48e13b50f70054766
> by adding support for exclude constraints?
> 2. Fully support gist & constraints in serializable transactions. I did
> not yet test a unique constraint backed by a gist constraint, which is also
> interesting to test I assume. This test would tell us if there currently is
> a status quo between btree and gist indexes.
>
Regarding the remark in (2), I forgot that a unique constraint cannot be
backed by a gist index, so forget the test I mentioned.