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 <[email protected]>
Tested-by: Erik Rijkers <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/test/regress/sql/object_address.sql b/src/test/regress/sql/object_address.sql
index 6b85fe29497..28476daff18 100644
--- a/src/test/regress/sql/object_address.sql
+++ b/src/test/regress/sql/object_address.sql
@@ -40,7 +40,7 @@ CREATE TRANSFORM FOR int LANGUAGE SQL (
 	FROM SQL WITH FUNCTION varchar_transform(internal),
 	TO SQL WITH FUNCTION int4recv(internal));
 CREATE PUBLICATION addr_pub FOR TABLE addr_nsp.gentable;
-CREATE SUBSCRIPTION addr_sub CONNECTION '' PUBLICATION bar WITH (DISABLED, NOCREATE SLOT);
+CREATE SUBSCRIPTION addr_sub CONNECTION '' PUBLICATION bar WITH (DISABLED, NOCONNECT);
 
 -- test some error cases
 SELECT pg_get_object_address('stone', '{}', '{}');