Doc: clarify behavior of timestamptz input some more.
authorTom Lane
Fri, 7 Feb 2025 17:40:41 +0000 (12:40 -0500)
committerTom Lane
Fri, 7 Feb 2025 17:40:41 +0000 (12:40 -0500)
commit11bba6e49407cbaa3a9cd317bb3a1f08b8c5609b
tree4c4af2399aba93cc749be4d355b1cc1f714f1b1e
parentb92c03342dcd69d259262b06b5c290e27249cb11
Doc: clarify behavior of timestamptz input some more.

Try to make it absolutely plain that we don't retain the
originally specified time zone, only the UTC timestamp.

While at it, make glossary entries for "UTC" and "GMT".

Author: Robert Treat 
Co-authored-by: Tom Lane
Discussion: https://postgr.es/m/173796426022.1064.9135167366862649513@wrigleys.postgresql.org
Backpatch-through: 13
doc/src/sgml/datatype.sgml
doc/src/sgml/glossary.sgml