schemadiff: validating case-sensitive view names (#13208)

Signed-off-by: Shlomi Noach <[email protected]>

go/vt/schemadiff/diff_test.go

@@ -777,6 +777,22 @@ func TestDiffSchemas(t *testing.T) {
 				"CREATE TABLE `t4` (\n\t`id` int,\n\tPRIMARY KEY (`id`)\n)",
 			},
 		},
+		{
+			// Making sure schemadiff distinguishes between VIEWs with different casing
+			name: "case insensitive views",
+			from: "create view v1 as select * from t; create table t(id int primary key); create view V1 as select * from t",
+			to:   "",
+			diffs: []string{
+				"drop view v1",
+				"drop view V1",
+				"drop table t",
+			},
+			cdiffs: []string{
+				"DROP VIEW `v1`",
+				"DROP VIEW `V1`",
+				"DROP TABLE `t`",
+			},
+		},
 	}
 	for _, ts := range tt {
 		t.Run(ts.name, func(t *testing.T) {