postgrespro
diff --git a/‎Makefile
Lines changed: 1 addition & 1 deletion b/‎Makefile
Lines changed: 1 addition & 1 deletion
diff --git a/‎hash.sql
Lines changed: 5 additions & 2 deletions b/‎hash.sql
Lines changed: 5 additions & 2 deletions
@@ -3,7 +3,7 @@
 MODULE_big = pg_pathman
 OBJS = src/init.o src/relation_info.o src/utils.o src/partition_filter.o src/runtimeappend.o \
 	src/runtime_merge_append.o src/pg_pathman.o src/dsm_array.o src/rangeset.o src/pl_funcs.o \
-	src/worker.o src/hooks.o src/nodes_common.o $(WIN32RES)
+	src/pathman_workers.o src/hooks.o src/nodes_common.o src/xact_handling.o $(WIN32RES)
 
 EXTENSION = pg_pathman
 EXTVERSION = 0.1
 
@@ -15,8 +15,8 @@ CREATE OR REPLACE FUNCTION @extschema@.create_hash_partitions(
 	parent_relid		REGCLASS,
 	attribute			TEXT,
 	partitions_count	INTEGER,
-	partition_data		BOOLEAN DEFAULT true
-) RETURNS INTEGER AS
+	partition_data		BOOLEAN DEFAULT true)
+RETURNS INTEGER AS
 $$
 DECLARE
 	v_child_relname		TEXT;
@@ -26,6 +26,9 @@ DECLARE
 	v_hashfunc			TEXT;
 
 BEGIN
+	/* Acquire exclusive lock on parent */
+	PERFORM @extschema@.lock_partitioned_relation(parent_relid);
+
 	PERFORM @extschema@.validate_relname(parent_relid);
 	attribute := lower(attribute);
 	PERFORM @extschema@.common_relation_checks(parent_relid, attribute);