diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index f716bb01baf0df6c016d660eee947aea50cc0093..8c7680c3d48a0cccdb304de1885979aa3d4c2c03 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -1342,12 +1342,12 @@ bool tsdbNextDataBlock(TsdbQueryHandleT* pqHandle) {
     pQueryHandle->checkFiles  = false;
   }
   
-  if (ASCENDING_ORDER_TRAVERSE(pQueryHandle->order)) {
+//  if (ASCENDING_ORDER_TRAVERSE(pQueryHandle->order)) {
     return doHasDataInBuffer(pQueryHandle);
-  } else {
+//  } else {
 //    assert(0);
-    return false;
-  }
+//    return false;
+//  }
   
 //  if (ASCENDING_ORDER_TRAVERSE(pQueryHandle->order)) {
 //    if (pQueryHandle->checkFiles) {