# Copyright (c) 2021-2025, PostgreSQL Global Development Group
# Logical replication tests for schema publications
use strict;
use warnings FATAL => 'all';
use PostgreSQL::Test::Cluster;
use PostgreSQL::Test::Utils;
use Test::More;
# Create subscriber node
my $node_subscriber = PostgreSQL::Test::Cluster->new('subscriber');
$node_subscriber->init;
$node_subscriber->start;
# Test replication with publications created using FOR TABLES IN SCHEMA # option. # Create schemas and tables on publisher
$node_publisher->safe_psql('postgres', "CREATE SCHEMA sch1");
$node_publisher->safe_psql('postgres', "CREATE TABLE sch1.tab1 AS SELECT generate_series(1,10) AS a");
$node_publisher->safe_psql('postgres', "CREATE TABLE sch1.tab2 AS SELECT generate_series(1,10) AS a");
$node_publisher->safe_psql('postgres', "CREATE TABLE sch1.tab1_parent (a int PRIMARY KEY, b text) PARTITION BY LIST (a)"
);
$node_publisher->safe_psql('postgres', "CREATE TABLE public.tab1_child1 PARTITION OF sch1.tab1_parent FOR VALUES IN (1, 2, 3)"
);
$node_publisher->safe_psql('postgres', "CREATE TABLE public.tab1_child2 PARTITION OF sch1.tab1_parent FOR VALUES IN (4, 5, 6)"
);
$node_publisher->safe_psql('postgres', "INSERT INTO sch1.tab1_parent values (1),(4)");
# Create schemas and tables on subscriber
$node_subscriber->safe_psql('postgres', "CREATE SCHEMA sch1");
$node_subscriber->safe_psql('postgres', "CREATE TABLE sch1.tab1 (a int)");
$node_subscriber->safe_psql('postgres', "CREATE TABLE sch1.tab2 (a int)");
$node_subscriber->safe_psql('postgres', "CREATE TABLE sch1.tab1_parent (a int PRIMARY KEY, b text) PARTITION BY LIST (a)"
);
$node_subscriber->safe_psql('postgres', "CREATE TABLE public.tab1_child1 PARTITION OF sch1.tab1_parent FOR VALUES IN (1, 2, 3)"
);
$node_subscriber->safe_psql('postgres', "CREATE TABLE public.tab1_child2 PARTITION OF sch1.tab1_parent FOR VALUES IN (4, 5, 6)"
);
# Setup logical replication
my $publisher_connstr = $node_publisher->connstr . ' dbname=postgres';
$node_publisher->safe_psql('postgres', "CREATE PUBLICATION tap_pub_schema FOR TABLES IN SCHEMA sch1");
# Wait for initial table sync to finish
$node_subscriber->wait_for_subscription_sync($node_publisher, 'tap_sub_schema');
# Check the schema table data is synced up
my $result = $node_subscriber->safe_psql('postgres', "SELECT count(*), min(a), max(a) FROM sch1.tab1");
is($result, qq(10|1|10), 'check rows on subscriber catchup');
$result = $node_subscriber->safe_psql('postgres', "SELECT count(*), min(a), max(a) FROM sch1.tab2");
is($result, qq(10|1|10), 'check rows on subscriber catchup');
$result = $node_subscriber->safe_psql('postgres', "SELECT * FROM sch1.tab1_parent order by 1");
is( $result, qq(1| 4|), 'check rows on subscriber catchup');
# Insert some data into few tables and verify that inserted data is replicated
$node_publisher->safe_psql('postgres', "INSERT INTO sch1.tab1 VALUES(generate_series(11,20))");
$node_publisher->safe_psql('postgres', "INSERT INTO sch1.tab1_parent values (2),(5)");
$result = $node_subscriber->safe_psql('postgres', "SELECT count(*), min(a), max(a) FROM sch1.tab1");
is($result, qq(20|1|20), 'check replicated inserts on subscriber');
$result = $node_subscriber->safe_psql('postgres', "SELECT * FROM sch1.tab1_parent order by 1");
is( $result, qq(1| 2| 4| 5|), 'check replicated inserts on subscriber');
# Create new table in the publication schema, verify that subscriber does not get # the new table data before refresh.
$node_publisher->safe_psql('postgres', "CREATE TABLE sch1.tab3 AS SELECT generate_series(1,10) AS a");
$result =
$node_subscriber->safe_psql('postgres', "SELECT count(*) FROM sch1.tab3");
is($result, qq(0), 'check replicated inserts on subscriber');
# Table data should be reflected after refreshing the publication in # subscriber.
$node_subscriber->safe_psql('postgres', "ALTER SUBSCRIPTION tap_sub_schema REFRESH PUBLICATION");
# Wait for sync to finish
$node_subscriber->wait_for_subscription_sync;
$node_publisher->safe_psql('postgres', "INSERT INTO sch1.tab3 VALUES(11)");
$result = $node_subscriber->safe_psql('postgres', "SELECT count(*), min(a), max(a) FROM sch1.tab3");
is($result, qq(11|1|11), 'check rows on subscriber catchup');
# Set the schema of a publication schema table to a non publication schema and # verify that inserted data is not reflected by the subscriber.
$node_publisher->safe_psql('postgres', "ALTER TABLE sch1.tab3 SET SCHEMA public");
$node_publisher->safe_psql('postgres', "INSERT INTO public.tab3 VALUES(12)");
$result = $node_subscriber->safe_psql('postgres', "SELECT count(*), min(a), max(a) FROM sch1.tab3");
is($result, qq(11|1|11), 'check replicated inserts on subscriber');
# Verify that the subscription relation list is updated after refresh
$result = $node_subscriber->safe_psql('postgres', "SELECT count(*) FROM pg_subscription_rel WHERE srsubid IN (SELECT oid FROM pg_subscription WHERE subname = 'tap_sub_schema')"
);
is($result, qq(5), 'check subscription relation status is not yet dropped on subscriber');
# Ask for data sync
$node_subscriber->safe_psql('postgres', "ALTER SUBSCRIPTION tap_sub_schema REFRESH PUBLICATION");
# Wait for sync to finish
$node_subscriber->wait_for_subscription_sync;
$result = $node_subscriber->safe_psql('postgres', "SELECT count(*) FROM pg_subscription_rel WHERE srsubid IN (SELECT oid FROM pg_subscription WHERE subname = 'tap_sub_schema')"
);
is($result, qq(4), 'check subscription relation status was dropped on subscriber');
# Drop table from the publication schema, verify that subscriber removes the # table entry after refresh.
$node_publisher->safe_psql('postgres', "DROP TABLE sch1.tab2");
$node_publisher->wait_for_catchup('tap_sub_schema');
$result = $node_subscriber->safe_psql('postgres', "SELECT count(*) FROM pg_subscription_rel WHERE srsubid IN (SELECT oid FROM pg_subscription WHERE subname = 'tap_sub_schema')"
);
is($result, qq(4), 'check subscription relation status is not yet dropped on subscriber');
# Table should be removed from pg_subscription_rel after refreshing the # publication in subscriber.
$node_subscriber->safe_psql('postgres', "ALTER SUBSCRIPTION tap_sub_schema REFRESH PUBLICATION");
# Wait for sync to finish
$node_subscriber->wait_for_subscription_sync;
$result = $node_subscriber->safe_psql('postgres', "SELECT count(*) FROM pg_subscription_rel WHERE srsubid IN (SELECT oid FROM pg_subscription WHERE subname = 'tap_sub_schema')"
);
is($result, qq(3), 'check subscription relation status was dropped on subscriber');
# Drop schema from publication, verify that the inserts are not published after # dropping the schema from publication. Here 2nd insert should not be # published.
$node_publisher->safe_psql( 'postgres', "
INSERT INTO sch1.tab1 VALUES(21);
ALTER PUBLICATION tap_pub_schema DROP TABLES IN SCHEMA sch1;
INSERT INTO sch1.tab1 values(22);"
);
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