diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 2444283435efeefdccdae2da5a047f23b7330ad5..90f673eaeea992c9c2b054d162ef46b12a3bbffc 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -1388,8 +1388,8 @@ static void doMergeTwoLevelData(STsdbQueryHandle* pQueryHandle, STableCheckInfo*
         break;
       }
 
-      if (((tsArray[pos] > pQueryHandle->window.ekey || pos > endPos) && ASCENDING_TRAVERSE(pQueryHandle->order)) ||
-          ((tsArray[pos] < pQueryHandle->window.ekey || pos < endPos) && !ASCENDING_TRAVERSE(pQueryHandle->order))) {
+      if (((pos > endPos || tsArray[pos] > pQueryHandle->window.ekey) && ASCENDING_TRAVERSE(pQueryHandle->order)) ||
+          ((pos < endPos || tsArray[pos] < pQueryHandle->window.ekey) && !ASCENDING_TRAVERSE(pQueryHandle->order))) {
         break;
       }