sql/mysql: suffix oss driver with oss (#3284)

Author: a8m

sql/mysql/diff.go sql/mysql/diff_oss.go

@@ -2,6 +2,8 @@
 // This source code is licensed under the Apache 2.0 license found
 // in the LICENSE file in the root directory of this source tree.
 
+//go:build !ent
+
 package mysql
 
 import (
@@ -723,3 +725,7 @@ func (d *diff) defaultCharset(attrs *[]schema.Attr) error {
 	}
 	return nil
 }
+
+func (*diff) ViewAttrChanges(_, _ *schema.View) []schema.Change {
+	return nil // Not implemented.
+}

sql/mysql/diff_test.go sql/mysql/diff_oss_test.go

@@ -2,6 +2,8 @@
 // This source code is licensed under the Apache 2.0 license found
 // in the LICENSE file in the root directory of this source tree.
 
+//go:build !ent
+
 package mysql
 
 import (