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-rw-r--r--mysql-test/t/innodb_mysql.test18
1 files changed, 18 insertions, 0 deletions
diff --git a/mysql-test/t/innodb_mysql.test b/mysql-test/t/innodb_mysql.test
index a3c11b8b8d6..75fff9656e2 100644
--- a/mysql-test/t/innodb_mysql.test
+++ b/mysql-test/t/innodb_mysql.test
@@ -558,4 +558,22 @@ drop table t1,t2;
--echo #
+--echo #
+--echo # Bug #39653: find_shortest_key in sql_select.cc does not consider
+--echo # clustered primary keys
+--echo #
+
+CREATE TABLE t1 (a INT PRIMARY KEY, b INT, c INT, d INT, e INT, f INT,
+ KEY (b,c)) ENGINE=INNODB;
+
+INSERT INTO t1 VALUES (1,1,1,1,1,1), (2,2,2,2,2,2), (3,3,3,3,3,3),
+ (4,4,4,4,4,4), (5,5,5,5,5,5), (6,6,6,6,6,6),
+ (7,7,7,7,7,7), (8,8,8,8,8,8), (9,9,9,9,9,9),
+ (11,11,11,11,11,11);
+
+--query_vertical EXPLAIN SELECT COUNT(*) FROM t1
+
+DROP TABLE t1;
+
+
--echo End of 5.1 tests