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-rw-r--r--mysql-test/t/func_str.test11
1 files changed, 10 insertions, 1 deletions
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test
index bb22366a98d..208b18b3f85 100644
--- a/mysql-test/t/func_str.test
+++ b/mysql-test/t/func_str.test
@@ -1314,9 +1314,13 @@ DROP TABLE t1, t2;
drop table if exists t1;
--enable_warnings
create table t1(f1 tinyint default null)engine=myisam;
-insert into t1 values (-1),(null);
+insert into t1 values (-1),(null);
+
+set @tmp_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain select 1 as a from t1,(select decode(f1,f1) as b from t1) a;
explain select 1 as a from t1,(select encode(f1,f1) as b from t1) a;
+set optimizer_switch=@tmp_optimizer_switch;
drop table t1;
@@ -1437,6 +1441,11 @@ SELECT * FROM t1;
DROP TABLE t1;
--echo #
+--echo # Bug#11764310 conv function crashes, negative argument to memcpy
+--echo #
+SELECT CONV(1,-2147483648,-2147483648);
+
+--echo #
--echo # Bug#12985030 SIMPLE QUERY WITH DECIMAL NUMBERS LEAKS MEMORY
--echo #