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-rw-r--r--mysql-test/t/func_str.test14
1 files changed, 14 insertions, 0 deletions
diff --git a/mysql-test/t/func_str.test b/mysql-test/t/func_str.test
index e7069c41716..22028437111 100644
--- a/mysql-test/t/func_str.test
+++ b/mysql-test/t/func_str.test
@@ -376,6 +376,20 @@ insert into t1 values (null);
select charset(a), collation(a), coercibility(a) from t1;
drop table t1;
select charset(null), collation(null), coercibility(null);
+#
+# Make sure OUTER JOIN is not replaced with a regular joun
+#
+CREATE TABLE t1 (a int, b int);
+CREATE TABLE t2 (a int, b int);
+INSERT INTO t1 VALUES (1,1),(2,2);
+INSERT INTO t2 VALUES (2,2),(3,3);
+select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
+where collation(t2.a) = _utf8'binary' order by t1.a,t2.a;
+select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
+where charset(t2.a) = _utf8'binary' order by t1.a,t2.a;
+select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
+where coercibility(t2.a) = 2 order by t1.a,t2.a;
+DROP TABLE t1, t2;
#
# test for SUBSTR