diff --git a/src/test/regress/expected/partition_prune.out b/src/test/regress/expected/partition_prune.out
index 723fc70..88701d8 100644
--- a/src/test/regress/expected/partition_prune.out
+++ b/src/test/regress/expected/partition_prune.out
@@ -3149,6 +3149,43 @@ select * from mc3p where a < 3 and abs(b) = 1;
          Filter: ((a < 3) AND (abs(b) = 1))
 (7 rows)
 
+--
+-- Check that pruning with composite range partitioning works correctly when
+-- a combination of runtime parameters is specified, not all of whose values
+-- are available at the same time
+--
+set plan_cache_mode = force_generic_plan;
+prepare ps1 as
+  select * from mc3p where a = $1 and abs(b) < (select 3);
+explain (analyze, costs off, summary off, timing off)
+execute ps1(1);
+                  QUERY PLAN                  
+----------------------------------------------
+ Append (actual rows=0 loops=1)
+   InitPlan 1 (returns $0)
+     ->  Result (never executed)
+   Subplans Removed: 2
+   ->  Seq Scan on mc3p0 (never executed)
+         Filter: ((a = $1) AND (abs(b) < $0))
+(6 rows)
+
+deallocate ps1;
+prepare ps2 as
+  select * from mc3p where a <= $1 and abs(b) < (select 3);
+explain (analyze, costs off, summary off, timing off)
+execute ps2(1);
+                   QUERY PLAN                    
+-------------------------------------------------
+ Append (actual rows=1 loops=1)
+   InitPlan 1 (returns $0)
+     ->  Result (actual rows=1 loops=1)
+   Subplans Removed: 2
+   ->  Seq Scan on mc3p0 (actual rows=1 loops=1)
+         Filter: ((a <= $1) AND (abs(b) < $0))
+(6 rows)
+
+deallocate ps2;
+reset plan_cache_mode;
 drop table mc3p;
 -- Ensure runtime pruning works with initplans params with boolean types
 create table boolvalues (value bool not null);
diff --git a/src/test/regress/sql/partition_prune.sql b/src/test/regress/sql/partition_prune.sql
index 2373bd8..071e28d 100644
--- a/src/test/regress/sql/partition_prune.sql
+++ b/src/test/regress/sql/partition_prune.sql
@@ -809,6 +809,24 @@ insert into mc3p values (0, 1, 1), (1, 1, 1), (2, 1, 1);
 explain (analyze, costs off, summary off, timing off)
 select * from mc3p where a < 3 and abs(b) = 1;
 
+--
+-- Check that pruning with composite range partitioning works correctly when
+-- a combination of runtime parameters is specified, not all of whose values
+-- are available at the same time
+--
+set plan_cache_mode = force_generic_plan;
+prepare ps1 as
+  select * from mc3p where a = $1 and abs(b) < (select 3);
+explain (analyze, costs off, summary off, timing off)
+execute ps1(1);
+deallocate ps1;
+prepare ps2 as
+  select * from mc3p where a <= $1 and abs(b) < (select 3);
+explain (analyze, costs off, summary off, timing off)
+execute ps2(1);
+deallocate ps2;
+reset plan_cache_mode;
+
 drop table mc3p;
 
 -- Ensure runtime pruning works with initplans params with boolean types