diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 08f0e9e19e..486ff49f09 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -192,8 +192,10 @@ static void tsdbMayTakeMemSnapshot(STsdbQueryHandle* pQueryHandle, SArray* psTab
 
   SMemRef* pMemRef = pQueryHandle->pMemRef;
   if (pQueryHandle->pMemRef->ref++ == 0) {
-    tsdbTakeMemSnapshot(pQueryHandle->pTsdb, (SMemTable**)&(pMemRef->mem), (SMemTable**)&(pMemRef->imem), NULL);
+    tsdbTakeMemSnapshot(pQueryHandle->pTsdb, (SMemTable**)&(pMemRef->mem), (SMemTable**)&(pMemRef->imem), psTable);
   }
+
+  taosArrayDestroy(psTable);
 }
 
 static void tsdbMayUnTakeMemSnapshot(STsdbQueryHandle* pQueryHandle) {
@@ -3385,4 +3387,3 @@ void getTableListfromSkipList(tExprNode *pExpr, SSkipList *pSkipList, SArray *re
   //apply the hierarchical filter expression to every node in skiplist to find the qualified nodes
   applyFilterToSkipListNode(pSkipList, pExpr, result, param);
 }
-   
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