pgsql: doc: Add section for temporal tables

From: Peter Eisentraut <peter(at)eisentraut(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: doc: Add section for temporal tables
Date: 2025-11-05 15:38:52
Message-ID: E1vGfb2-005Aqx-0D@gemulon.postgresql.org
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doc: Add section for temporal tables

This section introduces temporal tables, with a focus on Application
Time (which we support) and only a brief mention of System Time (which
we don't). It covers temporal primary keys, unique constraints, and
temporal foreign keys. We will document temporal update/delete and
periods as we add those features.

This commit also adds glossary entries for temporal table, application
time, and system time.

Author: Paul A. Jungwirth <pj(at)illuminatedcomputing(dot)com>
Discussion: https://www.postgresql.org/message-id/flat/ec498c3d-5f2b-48ec-b989-5561c8aa2024(at)illuminatedcomputing(dot)com

Branch
------
master

Details
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https://git.postgresql.org/pg/commitdiff/e4d8a2af07f56ec2537eb8f9a16599249db62c94

Modified Files
--------------
doc/src/sgml/ddl.sgml | 292 ++++++++++++++++++++++++++++
doc/src/sgml/glossary.sgml | 47 +++++
doc/src/sgml/images/Makefile | 4 +-
doc/src/sgml/images/temporal-entities.svg | 34 ++++
doc/src/sgml/images/temporal-entities.txt | 14 ++
doc/src/sgml/images/temporal-references.svg | 37 ++++
doc/src/sgml/images/temporal-references.txt | 19 ++
7 files changed, 446 insertions(+), 1 deletion(-)

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