diff --git a/mysql-test/r/mysqldump.result b/mysql-test/r/mysqldump.result
index 085cf2788f9..01edd10b896 100644
--- a/mysql-test/r/mysqldump.result
+++ b/mysql-test/r/mysqldump.result
@@ -15,3 +15,51 @@ INSERT INTO t1 VALUES (1), (2);
 </database>
 </mysqldump>
 DROP TABLE t1;
+CREATE TABLE t1 (a decimal(240, 20));
+INSERT INTO t1 VALUES ("1234567890123456789012345678901234567890"),
+("0987654321098765432109876543210987654321");
+-- MySQL dump 9.09
+--
+-- Host: localhost    Database: test
+-- ------------------------------------------------------
+-- Server version	4.0.17-debug-log
+
+--
+-- Table structure for table `t1`
+--
+
+CREATE TABLE t1 (
+  a decimal(240,20) default NULL
+) TYPE=MyISAM;
+
+--
+-- Dumping data for table `t1`
+--
+
+INSERT INTO t1 VALUES ("1234567890123456789012345678901234567890.00000000000000000000");
+INSERT INTO t1 VALUES ("0987654321098765432109876543210987654321.00000000000000000000");
+
+DROP TABLE t1;
+CREATE TABLE t1 (a double);
+INSERT INTO t1 VALUES (-9e999999);
+-- MySQL dump 9.09
+--
+-- Host: localhost    Database: test
+-- ------------------------------------------------------
+-- Server version	4.0.17-debug-log
+
+--
+-- Table structure for table `t1`
+--
+
+CREATE TABLE t1 (
+  a double default NULL
+) TYPE=MyISAM;
+
+--
+-- Dumping data for table `t1`
+--
+
+INSERT INTO t1 VALUES (NULL);
+
+DROP TABLE t1;