diff --git a/source/libs/function/src/tpercentile.c b/source/libs/function/src/tpercentile.c
index e6da187a35..dbe0b6bb3a 100644
--- a/source/libs/function/src/tpercentile.c
+++ b/source/libs/function/src/tpercentile.c
@@ -33,13 +33,13 @@ static SFilePage *loadDataFromFilePage(tMemBucket *pMemBucket, int32_t slotIdx)
   SFilePage *buffer = (SFilePage *)taosMemoryCalloc(1, pMemBucket->bytes * pMemBucket->pSlots[slotIdx].info.size + sizeof(SFilePage));
 
   int32_t groupId = getGroupId(pMemBucket->numOfSlots, slotIdx, pMemBucket->times);
-  SIDList list = taosHashGet(pMemBucket->groupPagesMap, &groupId, sizeof(groupId));
+  SArray* pIdList = *(SArray**)taosHashGet(pMemBucket->groupPagesMap, &groupId, sizeof(groupId));
 
   int32_t offset = 0;
-  for(int32_t i = 0; i < list->size; ++i) {
-    struct SPageInfo* pgInfo = *(struct SPageInfo**) taosArrayGet(list, i);
+  for(int32_t i = 0; i < taosArrayGetSize(pIdList); ++i) {
+    int32_t* pageId = taosArrayGet(pIdList, i);
 
-    SFilePage* pg = getBufPage(pMemBucket->pBuffer, getPageId(pgInfo));
+    SFilePage* pg = getBufPage(pMemBucket->pBuffer, *pageId);
     memcpy(buffer->data + offset, pg->data, (size_t)(pg->num * pMemBucket->bytes));
 
     offset += (int32_t)(pg->num * pMemBucket->bytes);
diff --git a/source/util/src/tpagedbuf.c b/source/util/src/tpagedbuf.c
index 4d5532b9a6..a48199f4b2 100644
--- a/source/util/src/tpagedbuf.c
+++ b/source/util/src/tpagedbuf.c
@@ -639,6 +639,7 @@ void clearDiskbasedBuf(SDiskbasedBuf* pBuf) {
   }
 
   taosArrayClear(pBuf->pIdList);
+  pBuf->pIdList = NULL;
 
   tdListEmpty(pBuf->lruList);
   tdListEmpty(pBuf->freePgList);