This is an automated cherry-pick of pingcap#45633

Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>

planner/core/casetest/rule/BUILD.bazel

@@ -0,0 +1,38 @@
+<<<<<<< HEAD
+=======
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
+
+go_test(
+    name = "rule_test",
+    timeout = "short",
+    srcs = [
+        "main_test.go",
+        "rule_derive_topn_from_window_test.go",
+        "rule_inject_extra_projection_test.go",
+        "rule_join_reorder_test.go",
+        "rule_result_reorder_test.go",
+    ],
+    data = glob(["testdata/**"]),
+    flaky = True,
+    shard_count = 23,
+    deps = [
+        "//domain",
+        "//expression",
+        "//expression/aggregation",
+        "//parser/ast",
+        "//parser/model",
+        "//parser/mysql",
+        "//planner/core/internal",
+        "//sessionctx/variable",
+        "//testkit",
+        "//testkit/testdata",
+        "//testkit/testmain",
+        "//testkit/testsetup",
+        "//types",
+        "//util/mock",
+        "@com_github_pingcap_failpoint//:failpoint",
+        "@com_github_stretchr_testify//require",
+        "@org_uber_go_goleak//:goleak",
+    ],
+)
+>>>>>>> c266a9791c5 (planner: support `no_index_join`, `no_index_hash_join`, `no_index_merge_join` hints (#45633))

planner/core/casetest/rule_join_reorder_test.go

@@ -72,6 +72,32 @@ func TestNoHashJoinHint(t *testing.T) {
 	runJoinReorderTestData(t, tk, "TestNoHashJoinHint")
 }
 
+<<<<<<< HEAD:planner/core/casetest/rule_join_reorder_test.go
+=======
+func TestNoMergeJoinHint(t *testing.T) {
+	store := testkit.CreateMockStore(t)
+	tk := testkit.NewTestKit(t, store)
+	tk.MustExec("use test")
+	tk.MustExec("create table t1(a int, key(a));")
+	tk.MustExec("create table t2(a int, key(a));")
+	tk.MustExec("create table t3(a int, key(a));")
+	tk.MustExec("create table t4(a int, key(a));")
+	runJoinReorderTestData(t, tk, "TestNoMergeJoinHint")
+}
+
+func TestNoIndexJoinHint(t *testing.T) {
+	store := testkit.CreateMockStore(t)
+	tk := testkit.NewTestKit(t, store)
+	tk.MustExec(`set tidb_enable_index_merge_join=true`)
+	tk.MustExec("use test")
+	tk.MustExec("create table t1(a int, key(a));")
+	tk.MustExec("create table t2(a int, key(a));")
+	tk.MustExec("create table t3(a int, key(a));")
+	tk.MustExec("create table t4(a int, key(a));")
+	runJoinReorderTestData(t, tk, "TestNoIndexJoinHint")
+}
+
+>>>>>>> c266a9791c5 (planner: support `no_index_join`, `no_index_hash_join`, `no_index_merge_join` hints (#45633)):planner/core/casetest/rule/rule_join_reorder_test.go
 func TestLeadingJoinHint(t *testing.T) {
 	store := testkit.CreateMockStore(t)
 

planner/core/casetest/testdata/join_reorder_suite_in.json

@@ -50,6 +50,38 @@
     ]
   },
   {
+<<<<<<< HEAD:planner/core/casetest/testdata/join_reorder_suite_in.json
+=======
+    "name": "TestNoIndexJoinHint",
+    "cases": [
+      "select /*+ no_merge_join(t1), no_hash_join(t1), no_index_hash_join(t1), no_index_merge_join(t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1), no_hash_join(t1), no_index_hash_join(t1), no_index_merge_join(t2) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1), no_hash_join(t1), no_index_hash_join(t1, t2), no_index_merge_join(t2, t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1), no_hash_join(t1), no_index_join(t1), no_index_merge_join(t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1), no_hash_join(t1), no_index_join(t1), no_index_hash_join(t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1), no_hash_join(t1), inl_join(t1), no_index_merge_join(t1), no_index_hash_join(t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ inl_join(t1), no_index_join(t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ inl_hash_join(t1), no_index_hash_join(t2) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ inl_merge_join(t1), no_index_merge_join(t1, t2) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ inl_join(t1), no_index_hash_join(t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ inl_join(t1), no_index_merge_join(t1) */ * from t1, t2 where t1.a=t2.a"
+    ]
+  },
+  {
+    "name": "TestNoMergeJoinHint",
+    "cases": [
+      "select /*+ no_merge_join() */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1), merge_join(t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1), merge_join(t2) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t1, t2) */ * from t1, t2 where t1.a=t2.a",
+      "select /*+ no_merge_join(t2) */ * from t1 right join t2 on t1.a=t2.a",
+      "select /*+ leading(t4, t3, t2, t1), no_merge_join(t2, t3) */ * from t1, t2, t3, t4 where t1.a=t2.a and t2.a=t3.a and t3.a=t4.a",
+      "select /*+ leading(t1, t2, t3, t4), merge_join(t1, t2), no_merge_join(t3), merge_join(t4) */ * from t1, t2, t3, t4 where t1.a=t2.a and t2.a=t3.a and t3.a=t4.a"
+    ]
+  },
+  {
+>>>>>>> c266a9791c5 (planner: support `no_index_join`, `no_index_hash_join`, `no_index_merge_join` hints (#45633)):planner/core/casetest/rule/testdata/join_reorder_suite_in.json
     "name": "TestLeadingJoinHint",
     "cases": [
       "select /*+ leading(t, t1) */ * from t, t1, t2, t3 where t.a = t1.a and t1.b=t2.b;",