pgsql: Logical replication support for TRUNCATE

Logical replication support for TRUNCATE

Update the built-in logical replication system to make use of the
previously added logical decoding for TRUNCATE support. Add the
required truncate callback to pgoutput and a new logical replication
protocol message.

Publications get a new attribute to determine whether to replicate
truncate actions. When updating a publication via pg_dump from an older
version, this is not set, thus preserving the previous behavior.

Author: Simon Riggs <simon(at)2ndquadrant(dot)com>
Author: Marco Nenciarini <marco(dot)nenciarini(at)2ndquadrant(dot)it>
Author: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
Reviewed-by: Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com>
Reviewed-by: Andres Freund <andres(at)anarazel(dot)de>
Reviewed-by: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/039eb6e92f20499ac36cc74f8a5cef7430b706f6

Modified Files
--------------
doc/src/sgml/catalogs.sgml | 8 ++
doc/src/sgml/logical-replication.sgml | 13 +--
doc/src/sgml/protocol.sgml | 56 ++++++++++
doc/src/sgml/ref/create_publication.sgml | 10 +-
src/backend/catalog/pg_publication.c | 1 +
src/backend/commands/publicationcmds.c | 20 +++-
src/backend/replication/logical/proto.c | 55 ++++++++++
src/backend/replication/logical/worker.c | 68 ++++++++++++
src/backend/replication/pgoutput/pgoutput.c | 129 +++++++++++++++-------
src/backend/utils/cache/relcache.c | 3 +-
src/bin/pg_dump/pg_dump.c | 33 ++++--
src/bin/pg_dump/pg_dump.h | 1 +
src/bin/pg_dump/t/002_pg_dump.pl | 2 +-
src/bin/psql/describe.c | 26 ++++-
src/include/catalog/catversion.h | 2 +-
src/include/catalog/pg_publication.h | 7 +-
src/include/replication/logicalproto.h | 4 +
src/test/regress/expected/publication.out | 84 +++++++--------
src/test/subscription/t/010_truncate.pl | 161 ++++++++++++++++++++++++++++
19 files changed, 572 insertions(+), 111 deletions(-)