Add temporal PRIMARY KEY and UNIQUE constraints
Add WITHOUT OVERLAPS clause to PRIMARY KEY and UNIQUE constraints.
These are backed by GiST indexes instead of B-tree indexes, since they
are essentially exclusion constraints with = for the scalar parts of
the key and && for the temporal part.
Author: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Reviewed-by: jian he <jian.universality@gmail.com>
Discussion:
https://www.postgresql.org/message-id/flat/CA+renyUApHgSZF9-nd-a0+OPGharLQLO=mDHcY4_qQ0+noCUVg@mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/46a0cd4cefb4d9b462d8cc4df5e7ecdd190bea92
Modified Files
--------------
contrib/btree_gist/Makefile | 2 +-
contrib/btree_gist/expected/without_overlaps.out | 44 +++
contrib/btree_gist/meson.build | 1 +
contrib/btree_gist/sql/without_overlaps.sql | 25 ++
doc/src/sgml/catalogs.sgml | 10 +
doc/src/sgml/gist.sgml | 14 +-
doc/src/sgml/ref/create_table.sgml | 45 ++-
src/backend/access/gist/gistutil.c | 29 ++
src/backend/catalog/heap.c | 2 +
src/backend/catalog/index.c | 4 +
src/backend/catalog/pg_constraint.c | 2 +
src/backend/commands/indexcmds.c | 143 +++++++-
src/backend/commands/tablecmds.c | 6 +-
src/backend/commands/trigger.c | 1 +
src/backend/commands/typecmds.c | 1 +
src/backend/nodes/outfuncs.c | 2 +
src/backend/nodes/readfuncs.c | 2 +
src/backend/parser/gram.y | 29 +-
src/backend/parser/parse_utilcmd.c | 28 +-
src/backend/utils/adt/ruleutils.c | 2 +
src/backend/utils/cache/relcache.c | 18 +-
src/bin/pg_dump/pg_dump.c | 16 +-
src/bin/pg_dump/pg_dump.h | 2 +
src/bin/pg_dump/t/002_pg_dump.pl | 36 +++
src/bin/psql/describe.c | 12 +-
src/include/access/gist.h | 3 +
src/include/catalog/catversion.h | 2 +-
src/include/catalog/index.h | 1 +
src/include/catalog/pg_constraint.h | 10 +-
src/include/commands/defrem.h | 6 +-
src/include/nodes/parsenodes.h | 2 +
src/test/regress/expected/without_overlaps.out | 395 +++++++++++++++++++++++
src/test/regress/parallel_schedule | 2 +-
src/test/regress/sql/without_overlaps.sql | 290 +++++++++++++++++
34 files changed, 1135 insertions(+), 52 deletions(-)