diff --git a/source/dnode/vnode/src/tsdb/tsdbRead2.c b/source/dnode/vnode/src/tsdb/tsdbRead2.c
index 590a2fd11b..d951f48d50 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead2.c
@@ -507,7 +507,7 @@ static void clearBlockScanInfo(STableBlockScanInfo* p) {
 
   p->delSkyline = taosArrayDestroy(p->delSkyline);
   p->pBlockList = taosArrayDestroy(p->pBlockList);
-  tMapDataClear(&p->mapData);
+  p->pDelData = taosArrayDestroy(p->pDelData);
 }
 
 static void destroyAllBlockScanInfo(SSHashObj* pTableMap) {