Fix for bug #13372 (decimal union)

mysql-test/r/type_decimal.result:
  test result fixed
mysql-test/r/type_float.result:
  test result fixed
mysql-test/t/type_decimal.test:
  test case added
mysql-test/t/type_float.test:
  test case added
sql/item.cc:
  Fixed counting of the max_length for the REAL_RESULT

1 files changed, 13 insertions, 0 deletions

diff --git a/mysql-test/t/type_float.test b/mysql-test/t/type_float.test
index 2d4a90911a1..abaf72ea2ed 100644
--- a/mysql-test/t/type_float.test
+++ b/mysql-test/t/type_float.test
@@ -149,4 +149,17 @@ select * from t1 where reckey=109;
 select * from t1 where reckey=1.09E2;
 drop table t1;
 
+#
+# Bug #13372 (decimal union)
+#
+create table t1 (d double(10,1));
+create table t2 (d double(10,9));
+insert into t1 values ("100000000.0");
+insert into t2 values ("1.23456780");
+create table t3 select * from t2 union select * from t1;
+select * from t3;
+show create table t3;
+drop table t1, t2, t3;
+
+
 # End of 4.1 tests