On Wed, Jan 13, 2021 at 10:28:26AM -0500, Tom Lane wrote: > So a non-rewriting conversion would only be possible if local time is > identical to UTC; which is true for few enough people that nobody has > bothered with attempting the optimization.
PostgreSQL 12 and later do have that optimization. Example DDL: https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=3c59263#patch4
