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postgres/contrib/test_decoding/sql/truncate.sql
Peter Eisentraut 5dfd1e5a66 Logical decoding of TRUNCATE
Add a new WAL record type for TRUNCATE, which is only used when
wal_level >= logical.  (For physical replication, TRUNCATE is already
replicated via SMGR records.)  Add new callback for logical decoding
output plugins to receive TRUNCATE actions.

Author: Simon Riggs <simon@2ndquadrant.com>
Author: Marco Nenciarini <marco.nenciarini@2ndquadrant.it>
Author: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Reviewed-by: Petr Jelinek <petr.jelinek@2ndquadrant.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
2018-04-07 11:34:10 -04:00

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SQL

SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
CREATE TABLE tab1 (id serial unique, data int);
CREATE TABLE tab2 (a int primary key, b int);
TRUNCATE tab1;
TRUNCATE tab1, tab1 RESTART IDENTITY CASCADE;
TRUNCATE tab1, tab2;
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');