server: fix memory leak after cursor running fetch finished (#13623) (#13629) (#13673)

c6839b84 · lysu · Jack Yu · c1bb143e · c6839b84
Commit c6839b84 authored 5 years ago by lysu Committed by Jack Yu 5 years ago
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with 4 additions and 1 deletion
+4 -1
--- a/server/driver_tidb.go
+++ b/server/driver_tidb.go
@@ -380,7 +380,10 @@ func (trs *tidbResultSet) Close() error {
 	if !atomic.CompareAndSwapInt32(&trs.closed, 0, 1) {
 		return nil
 	}
-	return trs.recordSet.Close()
+	err := trs.recordSet.Close()
+	trs.recordSet = nil
+	trs.rows = nil
+	return err
 }

 // OnFetchReturned implements fetchNotifier#OnFetchReturned