diff --git a/executor/sort.go b/executor/sort.go
index cfc274582f00c..63aa249825563 100644
--- a/executor/sort.go
+++ b/executor/sort.go
@@ -289,7 +289,6 @@ func (e *SortExec) fetchRowChunks(ctx context.Context) error {
 		}
 		e.rowChunks.Add(chk)
 		if atomic.LoadUint32(&e.exceeded) == 1 {
-			fmt.Println(e.rowChunks.Len())
 			err := e.generatePartition()
 			if err != nil {
 				return err
diff --git a/executor/sort_test.go b/executor/sort_test.go
index 259bf7a48fe98..3f6ad5794bb5e 100644
--- a/executor/sort_test.go
+++ b/executor/sort_test.go
@@ -51,10 +51,4 @@ func (s *testSuite) TestSortInDisk(c *C) {
 	for i := 0; i < 1024; i++ {
 		c.Assert(result.Rows()[i][0].(string), Equals, fmt.Sprint(i))
 	}
-
-	tk.MustExec("set @@tidb_mem_quota_query=500;")
-	result = tk.MustQuery("select * from t order by c1")
-	for i := 0; i < 1024; i++ {
-		c.Assert(result.Rows()[i][0].(string), Equals, fmt.Sprint(i))
-	}
 }
diff --git a/util/chunk/disk.go b/util/chunk/disk.go
index ae33f065c4835..b1a8c707f0ee2 100644
--- a/util/chunk/disk.go
+++ b/util/chunk/disk.go
@@ -143,11 +143,6 @@ func (l *ListInDisk) NumChunks() int {
 	return len(l.offsets)
 }
 
-// GetOffsetOfRow returns the offset of a row in the ListInDisk.
-func (l *ListInDisk) GetOffsetOfRow(ptr RowPtr) int64 {
-	return l.offsets[ptr.ChkIdx][ptr.RowIdx]
-}
-
 // Close releases the disk resource.
 func (l *ListInDisk) Close() error {
 	if l.disk != nil {