Logical replication support for initial data copy Add functionality for a new subscription to copy the initial data in the tables and then sync with the ongoing apply process.
For the copying, add a new internal COPY option to have the COPY source data provided by a callback function. The initial data copy works on the subscriber by receiving COPY data from the publisher and then providing it locally into a COPY that writes to the destination table. A WAL receiver can now execute full SQL commands. This is used here to obtain information about tables and publications. Several new options were added to CREATE and ALTER SUBSCRIPTION to control whether and when initial table syncing happens. Change pg_dump option --no-create-subscription-slots to --no-subscription-connect and use the new CREATE SUBSCRIPTION ... NOCONNECT option for that. Author: Petr Jelinek <petr.jeli...@2ndquadrant.com> Tested-by: Erik Rijkers <e...@xs4all.nl> Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/7c4f52409a8c7d85ed169bbbc1f6092274d03920 Modified Files -------------- contrib/file_fdw/file_fdw.c | 5 +- doc/src/sgml/catalogs.sgml | 78 ++ doc/src/sgml/config.sgml | 25 + doc/src/sgml/logical-replication.sgml | 55 +- doc/src/sgml/monitoring.sgml | 9 +- doc/src/sgml/protocol.sgml | 9 +- doc/src/sgml/ref/alter_subscription.sgml | 50 +- doc/src/sgml/ref/create_subscription.sgml | 38 + doc/src/sgml/ref/pg_dump.sgml | 15 +- src/backend/catalog/Makefile | 1 + src/backend/catalog/heap.c | 6 + src/backend/catalog/pg_publication.c | 4 +- src/backend/catalog/pg_subscription.c | 282 +++++++ src/backend/catalog/system_views.sql | 1 + src/backend/commands/copy.c | 23 +- src/backend/commands/subscriptioncmds.c | 468 ++++++++++-- src/backend/parser/gram.y | 39 +- src/backend/postmaster/pgstat.c | 6 + .../libpqwalreceiver/libpqwalreceiver.c | 203 ++++- src/backend/replication/logical/Makefile | 2 +- src/backend/replication/logical/launcher.c | 130 +++- src/backend/replication/logical/relation.c | 7 + src/backend/replication/logical/snapbuild.c | 85 ++- src/backend/replication/logical/tablesync.c | 840 +++++++++++++++++++++ src/backend/replication/logical/worker.c | 203 +++-- src/backend/replication/repl_gram.y | 32 +- src/backend/replication/repl_scanner.l | 5 +- src/backend/replication/walsender.c | 104 ++- src/backend/tcop/postgres.c | 5 +- src/backend/utils/adt/misc.c | 20 + src/backend/utils/cache/syscache.c | 14 +- src/backend/utils/misc/guc.c | 12 + src/bin/pg_dump/pg_backup.h | 2 +- src/bin/pg_dump/pg_dump.c | 9 +- src/bin/pg_dump/t/002_pg_dump.pl | 2 +- src/include/catalog/catversion.h | 2 +- src/include/catalog/indexing.h | 7 +- src/include/catalog/pg_proc.h | 5 +- src/include/catalog/pg_subscription_rel.h | 78 ++ src/include/commands/copy.h | 5 +- src/include/nodes/nodes.h | 1 + src/include/nodes/parsenodes.h | 13 + src/include/nodes/replnodes.h | 9 + src/include/parser/kwlist.h | 1 + src/include/pgstat.h | 4 +- src/include/replication/logical.h | 13 +- src/include/replication/logicallauncher.h | 1 + src/include/replication/snapbuild.h | 1 + src/include/replication/walreceiver.h | 67 +- src/include/replication/walsender.h | 12 +- src/include/replication/worker_internal.h | 30 +- src/include/utils/syscache.h | 1 + src/test/regress/expected/object_address.out | 3 +- src/test/regress/expected/rules.out | 3 +- src/test/regress/expected/sanity_check.out | 1 + src/test/regress/expected/subscription.out | 45 +- src/test/regress/sql/object_address.sql | 2 +- src/test/regress/sql/subscription.sql | 11 +- src/test/subscription/t/001_rep_changes.pl | 36 +- src/test/subscription/t/002_types.pl | 6 + src/test/subscription/t/003_constraints.pl | 2 +- src/test/subscription/t/004_sync.pl | 159 ++++ 62 files changed, 2966 insertions(+), 341 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
