Re: pgsql: Implement waiting for given lsn at transaction start

On Wed, Apr 08, 2020 at 06:07:23AM +0530, Amit Kapila wrote:
> I think we have two options now (a) Provide feedback on the thread for
> syntax and see what best we can do in that regard (b) Revert and try
> it for PG14.  I think generally building consensus on syntax at this
> stage is difficult but we can try if we want this feature for this
> release.  I am not very happy that it went in without more discussion
> but OTOH, this is not a very big feature and if we agree on syntax
> this can be part of PG13.  I think code also needs some more review.

I have not followed this stuff as much as I would have liked, but my
overall impression of the patch is that the disagreements around the
grammar syntax with the addition of three keywords which I guess are
heavily used in AS aliases because they are generic terms (including
lsn!), and the issues mentioned on the thread point out that this
patch was not ready to be merged, and that this has been rushed as per
the feature freeze deadline.  Post feature-freeze is not the time to
discuss feature redesign, so I think that this should be reverted, and
proposed again for 14.
--
Michael