1 files changed, 41 insertions, 0 deletions
diff --git a/mysql-test/main/type_num_innodb.test b/mysql-test/main/type_num_innodb.test
new file mode 100644
index 00000000000..04bdd4c63b0
--- /dev/null
+++ b/mysql-test/main/type_num_innodb.test
@@ -0,0 +1,41 @@
+--source include/have_innodb.inc
+
+--echo #
+--echo # Start of 10.2 tests
+--echo #
+
+--echo #
+--echo # MDEV-9391 InnoDB does not produce warnings when doing WHERE int_column=varchar_column
+--echo #
+
+CREATE TABLE t1 (
+  a DOUBLE, b VARCHAR(1), c INT,
+  KEY(a), KEY(b)
+) ENGINE=InnoDB;
+INSERT INTO t1 VALUES
+(1,'v',9),(2,'v',8),(3,'c',7),(4,'m',6),(5,'x',5),
+(6,'i',4),(7,'e',3),(8,'p',2),(9,'s',1),(10,'j',9),
+(11,'z',8),(12,'c',7),(13,'a',6),(14,'q',5),(15,'y',4),
+(16,'n',3),(17,'r',2),(18,'v',1),(19,'p',0);
+CREATE TABLE t2 (
+  pk INT, d VARCHAR(1), e INT,
+  PRIMARY KEY(pk), KEY(d,e)
+) ENGINE=InnoDB;
+INSERT INTO t2 VALUES
+(1,'x',1),(2,'d',2),(3,'r',3),(4,'f',4),(5,'y',5),
+(6,'u',6),(7,'m',7),(8,'k',8),(9,'o',9),(10,'w',1),
+(11,'m',2),(12,'q',3),(13,'m',4),(14,'d',5),
+(15,'g',6),(16,'x',7),(17,'f',8);
+SELECT * FROM t1,t2 WHERE a=d;
+
+ALTER TABLE t1 MODIFY a DECIMAL(10,0);
+SELECT * FROM t1,t2 WHERE a=d;
+
+ALTER TABLE t1 MODIFY a DOUBLE;
+SELECT * FROM t1,t2 WHERE a=d;
+
+DROP TABLE t1,t2;
+
+--echo #
+--echo # End of 10.2 tests
+--echo #