diff --git a/pkg/executor/test/tiflashtest/BUILD.bazel b/pkg/executor/test/tiflashtest/BUILD.bazel
index b60b56f408a9e..6f1da72d25ce1 100644
--- a/pkg/executor/test/tiflashtest/BUILD.bazel
+++ b/pkg/executor/test/tiflashtest/BUILD.bazel
@@ -9,7 +9,7 @@ go_test(
     ],
     flaky = True,
     race = "on",
-    shard_count = 42,
+    shard_count = 43,
     deps = [
         "//pkg/config",
         "//pkg/domain",
diff --git a/pkg/executor/test/tiflashtest/tiflash_test.go b/pkg/executor/test/tiflashtest/tiflash_test.go
index a58847cfebbed..da0bc8df5fcf6 100644
--- a/pkg/executor/test/tiflashtest/tiflash_test.go
+++ b/pkg/executor/test/tiflashtest/tiflash_test.go
@@ -1988,3 +1988,47 @@ func TestIssue50358(t *testing.T) {
 		tk.MustQuery("select 8 from t join t1").Check(testkit.Rows("8", "8"))
 	}
 }
+
+func TestMppAggShouldAlignFinalMode(t *testing.T) {
+	store := testkit.CreateMockStore(t, withMockTiFlash(1))
+	tk := testkit.NewTestKit(t, store)
+	tk.MustExec("use test")
+	tk.MustExec("create table t (" +
+		"  d date," +
+		"  v int," +
+		"  primary key(d, v)" +
+		") partition by range columns (d) (" +
+		"  partition p1 values less than ('2023-07-02')," +
+		"  partition p2 values less than ('2023-07-03')" +
+		");")
+	tk.MustExec("alter table t set tiflash replica 1")
+	tb := external.GetTableByName(t, tk, "test", "t")
+	err := domain.GetDomain(tk.Session()).DDL().UpdateTableReplicaInfo(tk.Session(), tb.Meta().ID, true)
+	require.NoError(t, err)
+	tk.MustExec(`set tidb_partition_prune_mode='static';`)
+	err = failpoint.Enable("github.com/pingcap/tidb/pkg/expression/aggregation/show-agg-mode", "return(true)")
+	require.Nil(t, err)
+
+	tk.MustExec("set @@session.tidb_isolation_read_engines=\"tiflash\"")
+	tk.MustQuery("explain format='brief' select 1 from (" +
+		"  select /*+ read_from_storage(tiflash[t]) */ sum(1)" +
+		"  from t where d BETWEEN '2023-07-01' and '2023-07-03' group by d" +
+		") total;").Check(testkit.Rows("Projection 400.00 root  1->Column#4",
+		"└─HashAgg 400.00 root  group by:test.t.d, funcs:count(complete,1)->Column#8",
+		"  └─PartitionUnion 400.00 root  ",
+		"    ├─Projection 200.00 root  test.t.d",
+		"    │ └─HashAgg 200.00 root  group by:test.t.d, funcs:firstrow(partial2,test.t.d)->test.t.d, funcs:count(final,Column#12)->Column#9",
+		"    │   └─TableReader 200.00 root  MppVersion: 2, data:ExchangeSender",
+		"    │     └─ExchangeSender 200.00 mpp[tiflash]  ExchangeType: PassThrough",
+		"    │       └─HashAgg 200.00 mpp[tiflash]  group by:test.t.d, funcs:count(partial1,1)->Column#12",
+		"    │         └─TableRangeScan 250.00 mpp[tiflash] table:t, partition:p1 range:[2023-07-01,2023-07-03], keep order:false, stats:pseudo",
+		"    └─Projection 200.00 root  test.t.d",
+		"      └─HashAgg 200.00 root  group by:test.t.d, funcs:firstrow(partial2,test.t.d)->test.t.d, funcs:count(final,Column#14)->Column#10",
+		"        └─TableReader 200.00 root  MppVersion: 2, data:ExchangeSender",
+		"          └─ExchangeSender 200.00 mpp[tiflash]  ExchangeType: PassThrough",
+		"            └─HashAgg 200.00 mpp[tiflash]  group by:test.t.d, funcs:count(partial1,1)->Column#14",
+		"              └─TableRangeScan 250.00 mpp[tiflash] table:t, partition:p2 range:[2023-07-01,2023-07-03], keep order:false, stats:pseudo"))
+
+	err = failpoint.Disable("github.com/pingcap/tidb/pkg/expression/aggregation/show-agg-mode")
+	require.Nil(t, err)
+}
diff --git a/pkg/planner/core/enforce_mpp_test.go b/pkg/planner/core/enforce_mpp_test.go
index 6b52dc6059abb..f161f7b7bd7b0 100644
--- a/pkg/planner/core/enforce_mpp_test.go
+++ b/pkg/planner/core/enforce_mpp_test.go
@@ -19,65 +19,12 @@ import (
 	"strconv"
 	"testing"
 
-	"github.com/pingcap/failpoint"
 	"github.com/pingcap/tidb/pkg/domain"
 	"github.com/pingcap/tidb/pkg/parser/model"
 	"github.com/pingcap/tidb/pkg/testkit"
 	"github.com/stretchr/testify/require"
 )
 
-func TestMppAggShouldAlignFinalMode(t *testing.T) {
-	store := testkit.CreateMockStore(t)
-	tk := testkit.NewTestKit(t, store)
-	tk.MustExec("use test")
-	tk.MustExec("create table t (" +
-		"  d date," +
-		"  v int," +
-		"  primary key(d, v)" +
-		") partition by range columns (d) (" +
-		"  partition p1 values less than ('2023-07-02')," +
-		"  partition p2 values less than ('2023-07-03')" +
-		");")
-	// Create virtual tiflash replica info.
-	dom := domain.GetDomain(tk.Session())
-	is := dom.InfoSchema()
-	db, exists := is.SchemaByName(model.NewCIStr("test"))
-	require.True(t, exists)
-	for _, tblInfo := range db.Tables {
-		if tblInfo.Name.L == "t" {
-			tblInfo.TiFlashReplica = &model.TiFlashReplicaInfo{
-				Count:     1,
-				Available: true,
-			}
-		}
-	}
-	tk.MustExec(`set tidb_partition_prune_mode='static';`)
-	err := failpoint.Enable("github.com/pingcap/tidb/pkg/expression/aggregation/show-agg-mode", "return(true)")
-	require.Nil(t, err)
-
-	tk.MustExec("set @@session.tidb_isolation_read_engines=\"tiflash\"")
-	tk.MustQuery("explain format='brief' select 1 from (" +
-		"  select /*+ read_from_storage(tiflash[t]) */ sum(1)" +
-		"  from t where d BETWEEN '2023-07-01' and '2023-07-03' group by d" +
-		") total;").Check(testkit.Rows("Projection 400.00 root  1->Column#4",
-		"└─HashAgg 400.00 root  group by:test.t.d, funcs:count(complete,1)->Column#8",
-		"  └─PartitionUnion 400.00 root  ",
-		"    ├─Projection 200.00 root  test.t.d",
-		"    │ └─HashAgg 200.00 root  group by:test.t.d, funcs:firstrow(partial2,test.t.d)->test.t.d, funcs:count(final,Column#12)->Column#9",
-		"    │   └─TableReader 200.00 root  MppVersion: 2, data:ExchangeSender",
-		"    │     └─ExchangeSender 200.00 mpp[tiflash]  ExchangeType: PassThrough",
-		"    │       └─HashAgg 200.00 mpp[tiflash]  group by:test.t.d, funcs:count(partial1,1)->Column#12",
-		"    │         └─TableRangeScan 250.00 mpp[tiflash] table:t, partition:p1 range:[2023-07-01,2023-07-03], keep order:false, stats:pseudo",
-		"    └─Projection 200.00 root  test.t.d",
-		"      └─HashAgg 200.00 root  group by:test.t.d, funcs:firstrow(partial2,test.t.d)->test.t.d, funcs:count(final,Column#14)->Column#10",
-		"        └─TableReader 200.00 root  MppVersion: 2, data:ExchangeSender",
-		"          └─ExchangeSender 200.00 mpp[tiflash]  ExchangeType: PassThrough",
-		"            └─HashAgg 200.00 mpp[tiflash]  group by:test.t.d, funcs:count(partial1,1)->Column#14",
-		"              └─TableRangeScan 250.00 mpp[tiflash] table:t, partition:p2 range:[2023-07-01,2023-07-03], keep order:false, stats:pseudo"))
-
-	err = failpoint.Disable("github.com/pingcap/tidb/pkg/expression/aggregation/show-agg-mode")
-	require.Nil(t, err)
-}
 func TestRowSizeInMPP(t *testing.T) {
 	store := testkit.CreateMockStore(t)
 	tk := testkit.NewTestKit(t, store)