diff --git a/PostgreSQL/blocking_pids.sql b/PostgreSQL/blocking_pids.sql
new file mode 100644
index 0000000..aa69e8b
--- /dev/null
+++ b/PostgreSQL/blocking_pids.sql
@@ -0,0 +1,6 @@
+  select pid, 
+       usename, 
+       pg_blocking_pids(pid) as blocked_by, 
+       query as blocked_query
+from pg_stat_activity
+where cardinality(pg_blocking_pids(pid)) > 0;
\ No newline at end of file