Handle foreign tables and update tests

src/backend/distributed/commands/dependencies.c

@@ -236,7 +236,7 @@ GetDependencyCreateDDLCommands(const ObjectAddress *dependency)
 				return NIL;
 			}
 
-			if (relKind == RELKIND_RELATION || relKind == RELKIND_PARTITIONED_TABLE)
+			if (relKind == RELKIND_RELATION || relKind == RELKIND_PARTITIONED_TABLE || relKind == RELKIND_FOREIGN_TABLE)
 			{
 				Oid relationId = dependency->objectId;
 				if (IsCitusTable(relationId) && !IsTableOwnedByExtension(relationId))

src/backend/distributed/metadata/dependency.c

@@ -683,6 +683,7 @@ SupportedDependencyByCitus(const ObjectAddress *address)
 			if (relKind == RELKIND_COMPOSITE_TYPE ||
 				relKind == RELKIND_RELATION ||
 				relKind == RELKIND_PARTITIONED_TABLE ||
+				relKind == RELKIND_FOREIGN_TABLE ||
 				relKind == RELKIND_SEQUENCE)
 			{
 				return true;

src/backend/distributed/metadata/node_metadata.c

@@ -696,10 +696,13 @@ SetUpObjectMetadata(WorkerNode *workerNode)
 											  metadataCommand);
 
 		/* add the truncate trigger command after the table became distributed */
-		char *truncateTriggerCreateCommand =
-			TruncateTriggerCreateCommand(cacheEntry->relationId);
-		metadataSnapshotCommandList = lappend(metadataSnapshotCommandList,
-											  truncateTriggerCreateCommand);
+		if (!IsForeignTable(clusteredTableId))
+		{
+			char *truncateTriggerCreateCommand =
+				TruncateTriggerCreateCommand(clusteredTableId);
+			metadataSnapshotCommandList = lappend(metadataSnapshotCommandList,
+												truncateTriggerCreateCommand);
+		}
 
 		/* add the pg_dist_shard{,placement} entries */
 		List *shardIntervalList = LoadShardIntervalList(clusteredTableId);

src/backend/distributed/metadata/pg_get_object_address_12_13_14.c

@@ -471,6 +471,7 @@ ErrorIfCurrentUserCanNotDistributeObject(ObjectType type, ObjectAddress *addr,
 			break;
 		}
 
+		case OBJECT_FOREIGN_TABLE:
 		case OBJECT_TABLE:
 		{
 			/* table distribution already does the ownership check, so we can stick to that over acl_check */

src/test/regress/expected/multi_cluster_management.out

@@ -173,7 +173,6 @@ SELECT master_get_active_worker_nodes();
 SELECT citus_disable_node('localhost.noexist', 2345);
 ERROR:  node at "localhost.noexist:2345" does not exist
 -- drop the table without leaving a shard placement behind (messes up other tests)
--- TODO: Replication ref table multiple times
 SELECT master_activate_node('localhost', :worker_2_port);
  master_activate_node 
 ----------------------

src/test/regress/expected/non_super_user_object_metadata.out

@@ -416,40 +416,6 @@ SELECT * FROM run_command_on_workers($$SELECT * FROM (SELECT pg_identify_object_
  localhost |    57638 | t       | (extension,{ltree},{})
 (2 rows)
 
-SELECT stop_metadata_sync_to_node('localhost', :worker_1_port);
-NOTICE:  dropping metadata on the node (localhost,57637)
- stop_metadata_sync_to_node
----------------------------------------------------------------------
-
-(1 row)
-
-SELECT stop_metadata_sync_to_node('localhost', :worker_2_port);
-NOTICE:  dropping metadata on the node (localhost,57638)
- stop_metadata_sync_to_node
----------------------------------------------------------------------
-
-(1 row)
-
--- Show that we don't have any object metadata after stopping syncing
-SELECT * FROM run_command_on_workers($$SELECT pg_identify_object_as_address(classid, objid, objsubid) from citus.pg_dist_object;$$) ORDER BY 1,2;
- nodename  | nodeport | success | result
----------------------------------------------------------------------
- localhost |    57637 | t       |
- localhost |    57638 | t       |
-(2 rows)
-
 -- Revert the settings for following tests
 RESET citus.enable_ddl_propagation;
 RESET citus.shard_replication_factor;
-SELECT start_metadata_sync_to_node('localhost', :worker_1_port);
- start_metadata_sync_to_node
----------------------------------------------------------------------
-
-(1 row)
-
-SELECT start_metadata_sync_to_node('localhost', :worker_2_port);
- start_metadata_sync_to_node
----------------------------------------------------------------------
-
-(1 row)
-

src/test/regress/sql/multi_sequence_default.sql

@@ -12,7 +12,6 @@ SET search_path = sequence_default, public;
 
 
 -- test both distributed and citus local tables
-table pg_dist_node;
 SELECT 1 FROM citus_add_node('localhost', :master_port, groupId => 0);
 -- Cannot add a column involving DEFAULT nextval('..') because the table is not empty
 CREATE SEQUENCE seq_0;
@@ -52,43 +51,17 @@ SELECT * FROM seq_test_0_local_table ORDER BY 1, 2 LIMIT 5;
 ALTER SEQUENCE seq_0 AS bigint;
 ALTER SEQUENCE seq_0_local_table AS bigint;
 
--- we can change other things like increment
--- if metadata is not synced to workers
+-- we can't change sequences as we mark them as distributed
+-- even if metadata sync is stopped
 BEGIN;
 SELECT stop_metadata_sync_to_node('localhost', :worker_1_port);
 SELECT stop_metadata_sync_to_node('localhost', :worker_2_port);
 CREATE SEQUENCE seq_13;
-CREATE SEQUENCE seq_13_local_table;
 CREATE TABLE seq_test_13 (x int, y int);
-CREATE TABLE seq_test_13_local_table (x int, y int);
 SELECT create_distributed_table('seq_test_13','x');
-SELECT citus_add_local_table_to_metadata('seq_test_13_local_table');
 ALTER TABLE seq_test_13 ADD COLUMN z int DEFAULT nextval('seq_13');
-ALTER TABLE seq_test_13_local_table ADD COLUMN z int DEFAULT nextval('seq_13_local_table');
 
 ALTER SEQUENCE seq_13 INCREMENT BY 2;
-ALTER SEQUENCE seq_13_local_table INCREMENT BY 2;
-\d seq_13
-\d seq_13_local_table
-
-
--- check that we can add serial pseudo-type columns
--- when metadata is not synced to workers
-TRUNCATE seq_test_0;
-ALTER TABLE seq_test_0 ADD COLUMN w00 smallserial;
-ALTER TABLE seq_test_0 ADD COLUMN w01 serial2;
-ALTER TABLE seq_test_0 ADD COLUMN w10 serial;
-ALTER TABLE seq_test_0 ADD COLUMN w11 serial4;
-ALTER TABLE seq_test_0 ADD COLUMN w20 bigserial;
-ALTER TABLE seq_test_0 ADD COLUMN w21 serial8;
-
-TRUNCATE seq_test_0_local_table;
-ALTER TABLE seq_test_0_local_table ADD COLUMN w00 smallserial;
-ALTER TABLE seq_test_0_local_table ADD COLUMN w01 serial2;
-ALTER TABLE seq_test_0_local_table ADD COLUMN w10 serial;
-ALTER TABLE seq_test_0_local_table ADD COLUMN w11 serial4;
-ALTER TABLE seq_test_0_local_table ADD COLUMN w20 bigserial;
-ALTER TABLE seq_test_0_local_table ADD COLUMN w21 serial8;
 
 ROLLBACK;
 

src/test/regress/sql/non_super_user_object_metadata.sql

@@ -177,14 +177,6 @@ SELECT * FROM run_command_on_workers($$SELECT * FROM (SELECT pg_identify_object_
 SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from citus.pg_dist_object) as obj_identifiers where obj_identifier::text like '%{ltree}%';
 SELECT * FROM run_command_on_workers($$SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from citus.pg_dist_object) as obj_identifiers where obj_identifier::text like '%{ltree}%';$$) ORDER BY 1,2;
 
-SELECT stop_metadata_sync_to_node('localhost', :worker_1_port);
-SELECT stop_metadata_sync_to_node('localhost', :worker_2_port);
-
--- Show that we don't have any object metadata after stopping syncing
-SELECT * FROM run_command_on_workers($$SELECT pg_identify_object_as_address(classid, objid, objsubid) from citus.pg_dist_object;$$) ORDER BY 1,2;
-
 -- Revert the settings for following tests
 RESET citus.enable_ddl_propagation;
 RESET citus.shard_replication_factor;
-SELECT start_metadata_sync_to_node('localhost', :worker_1_port);
-SELECT start_metadata_sync_to_node('localhost', :worker_2_port);