feat: add failing e2e test case

Signed-off-by: Manan Gupta <[email protected]>

go/test/endtoend/vtgate/vitess_tester/join/join.test

@@ -25,6 +25,15 @@ CREATE TABLE `t3`
   CHARSET utf8mb4,
   COLLATE utf8mb4_unicode_ci;
 
+CREATE TABLE `t4`
+(
+    `id`  bigint unsigned NOT NULL AUTO_INCREMENT,
+    `col` int unsigned NOT NULL,
+    PRIMARY KEY (`id`)
+) ENGINE InnoDB,
+  CHARSET utf8mb4,
+  COLLATE utf8mb4_unicode_ci;
+
 insert into t1 (id, name)
 values (1, 'A'),
        (2, 'B'),
@@ -43,7 +52,28 @@ values (1, 'A'),
        (4, 'B'),
        (5, 'B');
 
+insert into t4 (id, col)
+values (1, 1),
+       (2, 2),
+       (3, 3);
+
 -- wait_authoritative t1
 -- wait_authoritative t2
 -- wait_authoritative t3
-select 42 from t1 join t2 on t1.id = t2.t1_id join t3 on t1.id = t3.id where t1.name or t2.id or t3.name;
+select 42
+from t1
+         join t2 on t1.id = t2.t1_id
+         join t3 on t1.id = t3.id
+where t1.name
+   or t2.id
+   or t3.name;
+
+# Complex query that requires hash join underneath a memory sort and ordered aggregate
+select 1
+from t1
+         join t2 on t1.id = t2.t1_id
+         join t4 on t4.col = t2.id
+         left join (select t4.col, count(*) as count from t4 group by t4.col) t3 on t3.col = t2.id
+where t1.id IN (1, 2)
+group by t2.id, t4.col;
+

go/test/endtoend/vtgate/vitess_tester/join/vschema.json

@@ -31,6 +31,14 @@
               "name": "hash"
             }
           ]
+        },
+        "t4": {
+          "column_vindexes": [
+            {
+              "column": "id",
+              "name": "hash"
+            }
+          ]
         }
       }
     }