diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c
index 3a89149016f..342b5f1e3e5 100644
--- a/src/backend/access/transam/xact.c
+++ b/src/backend/access/transam/xact.c
@@ -4902,6 +4902,8 @@ RollbackAndReleaseCurrentSubTransaction(void)
 		   s->blockState == TBLOCK_INPROGRESS ||
 		   s->blockState == TBLOCK_IMPLICIT_INPROGRESS ||
 		   s->blockState == TBLOCK_PARALLEL_INPROGRESS ||
+		   s->blockState == TBLOCK_END ||
+		   s->blockState == TBLOCK_PREPARE ||
 		   s->blockState == TBLOCK_STARTED);
 }
 
diff --git a/src/test/regress/expected/triggers.out b/src/test/regress/expected/triggers.out
index 511e7cfb6ce..0943a8d49bb 100644
--- a/src/test/regress/expected/triggers.out
+++ b/src/test/regress/expected/triggers.out
@@ -2308,6 +2308,34 @@ create constraint trigger crtr
 ERROR:  constraint triggers cannot be marked NOT ENFORCED
 LINE 2:   after insert on foo not enforced
                               ^
+-- Test exception handling in a deferred constraint trigger at COMMIT.
+create table deferred_trigger_test (a int);
+create function deferred_trigger_func() returns trigger
+  language plpgsql as $$
+begin
+  perform 1 / 0;
+  return new;
+exception when division_by_zero then
+  raise notice 'caught division_by_zero';
+  return new;
+end;
+$$;
+create constraint trigger deferred_trigger
+  after insert on deferred_trigger_test
+  deferrable initially deferred
+  for each row execute function deferred_trigger_func();
+begin;
+insert into deferred_trigger_test values (1);
+commit;
+NOTICE:  caught division_by_zero
+select * from deferred_trigger_test;
+ a 
+---
+ 1
+(1 row)
+
+drop table deferred_trigger_test;
+drop function deferred_trigger_func();
 --
 -- Constraint triggers and partitioned tables
 create table parted_constr_ancestor (a int, b text)
diff --git a/src/test/regress/sql/triggers.sql b/src/test/regress/sql/triggers.sql
index ea39817ee3d..e73f43942b0 100644
--- a/src/test/regress/sql/triggers.sql
+++ b/src/test/regress/sql/triggers.sql
@@ -1590,6 +1590,31 @@ create constraint trigger crtr
   after insert on foo not enforced
   for each row execute procedure foo ();
 
+-- Test exception handling in a deferred constraint trigger at COMMIT.
+create table deferred_trigger_test (a int);
+create function deferred_trigger_func() returns trigger
+  language plpgsql as $$
+begin
+  perform 1 / 0;
+  return new;
+exception when division_by_zero then
+  raise notice 'caught division_by_zero';
+  return new;
+end;
+$$;
+create constraint trigger deferred_trigger
+  after insert on deferred_trigger_test
+  deferrable initially deferred
+  for each row execute function deferred_trigger_func();
+
+begin;
+insert into deferred_trigger_test values (1);
+commit;
+select * from deferred_trigger_test;
+
+drop table deferred_trigger_test;
+drop function deferred_trigger_func();
+
 --
 -- Constraint triggers and partitioned tables
 create table parted_constr_ancestor (a int, b text)