diff --git a/pg_stat_monitor.c b/pg_stat_monitor.c
index ee63ba7..2f51c08 100644
--- a/pg_stat_monitor.c
+++ b/pg_stat_monitor.c
@@ -1712,6 +1712,11 @@ pg_stat_monitor_internal(FunctionCallInfo fcinfo,
 			if (tmp.state == PGSS_FINISHED)
 				continue;
 		}
+
+		/* Skip queries such as, $1, $2 := $3, etc. */
+		if (tmp.state == PGSS_PARSE || tmp.state == PGSS_PLAN)
+			continue;
+
 		if (tmp.info.parentid != UINT64CONST(0))
 		{
 			int len = 0;
diff --git a/regression/expected/counters.out b/regression/expected/counters.out
index c96775e..ebf26f7 100644
--- a/regression/expected/counters.out
+++ b/regression/expected/counters.out
@@ -68,7 +68,7 @@ end $$;
 SELECT query,calls FROM pg_stat_monitor ORDER BY query COLLATE "C";
                                                query                                               | calls 
 ---------------------------------------------------------------------------------------------------+-------
- SELECT a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a;                  |  1000
+ SELECT a,b,c,d FROM t1, t2, t3, t4 WHERE t1.a = t2.b AND t3.c = t4.d ORDER BY a                   |  1000
  SELECT pg_stat_monitor_reset();                                                                   |     1
  SELECT query,calls FROM pg_stat_monitor ORDER BY query COLLATE "C";                               |     1
  do $$                                                                                            +|     1
diff --git a/regression/expected/state.out b/regression/expected/state.out
index 147054a..b051091 100644
--- a/regression/expected/state.out
+++ b/regression/expected/state.out
@@ -16,7 +16,7 @@ ERROR:  division by zero
 SELECT query, state_code, state FROM pg_stat_monitor ORDER BY query COLLATE "C";
                                       query                                       | state_code |        state        
 ----------------------------------------------------------------------------------+------------+---------------------
- SELECT $1 AS num                                                                 |          3 | FINISHED
+ SELECT $1                                                                        |          3 | FINISHED
  SELECT 1/0;                                                                      |          4 | FINISHED WITH ERROR
  SELECT pg_stat_monitor_reset();                                                  |          3 | FINISHED
  SELECT query, state_code, state FROM pg_stat_monitor ORDER BY query COLLATE "C"; |          2 | ACTIVE
diff --git a/regression/expected/tags.out b/regression/expected/tags.out
index 9da2b13..dffe468 100644
--- a/regression/expected/tags.out
+++ b/regression/expected/tags.out
@@ -12,11 +12,11 @@ SELECT 1 AS num /* { "application", psql_app, "real_ip", 192.168.1.3) */;
 (1 row)
 
 SELECT query, comments FROM pg_stat_monitor ORDER BY query COLLATE "C";
-                                  query                                  |                       comments                       
--------------------------------------------------------------------------+------------------------------------------------------
- SELECT $1 AS num                                                        |  { "application", psql_app, "real_ip", 192.168.1.3) 
- SELECT pg_stat_monitor_reset();                                         | 
- SELECT query, comments FROM pg_stat_monitor ORDER BY query COLLATE "C"; | 
+                                   query                                   |                       comments                       
+---------------------------------------------------------------------------+------------------------------------------------------
+ SELECT $1 AS num /* { "application", psql_app, "real_ip", 192.168.1.3) */ |  { "application", psql_app, "real_ip", 192.168.1.3) 
+ SELECT pg_stat_monitor_reset();                                           | 
+ SELECT query, comments FROM pg_stat_monitor ORDER BY query COLLATE "C";   | 
 (3 rows)
 
 SELECT pg_stat_monitor_reset();