diff --git a/mysql-test/r/bdb_notembedded.result b/mysql-test/r/bdb_notembedded.result
new file mode 100644
index 00000000000..14cb5fad915
--- /dev/null
+++ b/mysql-test/r/bdb_notembedded.result
@@ -0,0 +1,35 @@
+set autocommit=1;
+reset master;
+create table bug16206 (a int);
+insert into bug16206 values(1);
+start transaction;
+insert into bug16206 values(2);
+commit;
+show binlog events;
+Log_name	Pos	Event_type	Server_id	End_log_pos	Info
+f	n	Format_desc	1	n	Server ver: VERSION, Binlog ver: 4
+f	n	Query	1	n	use `test`; create table bug16206 (a int)
+f	n	Query	1	n	use `test`; insert into bug16206 values(1)
+f	n	Query	1	n	use `test`; insert into bug16206 values(2)
+drop table bug16206;
+reset master;
+create table bug16206 (a int) engine=         bdb;
+insert into bug16206 values(0);
+insert into bug16206 values(1);
+start transaction;
+insert into bug16206 values(2);
+commit;
+insert into bug16206 values(3);
+show binlog events;
+Log_name	Pos	Event_type	Server_id	End_log_pos	Info
+f	n	Format_desc	1	n	Server ver: VERSION, Binlog ver: 4
+f	n	Query	1	n	use `test`; create table bug16206 (a int) engine=         bdb
+f	n	Query	1	n	use `test`; insert into bug16206 values(0)
+f	n	Query	1	n	use `test`; insert into bug16206 values(1)
+f	n	Query	1	n	use `test`; BEGIN
+f	n	Query	1	n	use `test`; insert into bug16206 values(2)
+f	n	Query	1	n	use `test`; COMMIT
+f	n	Query	1	n	use `test`; insert into bug16206 values(3)
+drop table bug16206;
+set autocommit=0;
+End of 5.0 tests
diff --git a/mysql-test/r/sp.result b/mysql-test/r/sp.result
index c75697b93a2..ad2cb443f25 100644
--- a/mysql-test/r/sp.result
+++ b/mysql-test/r/sp.result
@@ -6053,5 +6053,55 @@ select bug20777(18446744073709551613)+1;
 bug20777(18446744073709551613)+1
 18446744073709551614
 drop function bug20777;
+DROP FUNCTION IF EXISTS bug5274_f1|
+DROP FUNCTION IF EXISTS bug5274_f2|
+CREATE FUNCTION bug5274_f1(p1 CHAR) RETURNS CHAR
+RETURN CONCAT(p1, p1)|
+CREATE FUNCTION bug5274_f2() RETURNS CHAR
+BEGIN
+DECLARE v1 INT DEFAULT 0;
+DECLARE v2 CHAR DEFAULT 'x';
+WHILE v1 < 30 DO
+SET v1 = v1 + 1;
+SET v2 = bug5274_f1(v2);
+END WHILE;
+RETURN v2;
+END|
+SELECT bug5274_f2()|
+bug5274_f2()
+x
+Warnings:
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+Warning	1265	Data truncated for column 'bug5274_f1' at row 1
+DROP FUNCTION bug5274_f1|
+DROP FUNCTION bug5274_f2|
 End of 5.0 tests.
 drop table t1,t2;
diff --git a/mysql-test/t/bdb_notembedded.test b/mysql-test/t/bdb_notembedded.test
new file mode 100644
index 00000000000..24e64ebbfb2
--- /dev/null
+++ b/mysql-test/t/bdb_notembedded.test
@@ -0,0 +1,38 @@
+-- source include/not_embedded.inc
+-- source include/have_bdb.inc
+
+#
+# Bug #16206: Superfluous COMMIT event in binlog when updating BDB in autocommit mode
+#
+set autocommit=1;
+
+let $VERSION=`select version()`;
+
+reset master;
+create table bug16206 (a int);
+insert into bug16206 values(1);
+start transaction;
+insert into bug16206 values(2);
+commit;
+--replace_result $VERSION VERSION
+--replace_column 1 f 2 n 5 n
+show binlog events;
+drop table bug16206;
+
+reset master;
+create table bug16206 (a int) engine=         bdb;
+insert into bug16206 values(0);
+insert into bug16206 values(1);
+start transaction;
+insert into bug16206 values(2);
+commit;
+insert into bug16206 values(3);
+--replace_result $VERSION VERSION
+--replace_column 1 f 2 n 5 n
+show binlog events;
+drop table bug16206;
+
+set autocommit=0;
+
+
+--echo End of 5.0 tests
diff --git a/mysql-test/t/sp.test b/mysql-test/t/sp.test
index 8403c8589ef..9510588429b 100644
--- a/mysql-test/t/sp.test
+++ b/mysql-test/t/sp.test
@@ -6976,6 +6976,44 @@ select bug20777(18446744073709551613)+1;
 drop function bug20777;
 delimiter |;
 
+
+#
+# BUG#5274: Stored procedure crash if length of CHAR variable too great.
+#
+
+# Prepare.
+
+--disable_warnings
+DROP FUNCTION IF EXISTS bug5274_f1|
+DROP FUNCTION IF EXISTS bug5274_f2|
+--enable_warnings
+
+# Test.
+
+CREATE FUNCTION bug5274_f1(p1 CHAR) RETURNS CHAR
+  RETURN CONCAT(p1, p1)|
+
+CREATE FUNCTION bug5274_f2() RETURNS CHAR
+BEGIN
+  DECLARE v1 INT DEFAULT 0;
+  DECLARE v2 CHAR DEFAULT 'x';
+
+  WHILE v1 < 30 DO
+    SET v1 = v1 + 1;
+    SET v2 = bug5274_f1(v2);
+  END WHILE;
+
+  RETURN v2;
+END|
+ 
+SELECT bug5274_f2()|
+
+# Cleanup.
+
+DROP FUNCTION bug5274_f1|
+DROP FUNCTION bug5274_f2|
+
+
 ###
 --echo End of 5.0 tests.