diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index aca0078592..5689b70824 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -139,7 +139,7 @@ static bool overlapWithTimeWindow(SInterval* pInterval, SDataBlockInfo* pBlockIn
       }
 
       assert(w.ekey > pBlockInfo->window.ekey);
-      if (w.skey <= pBlockInfo->window.ekey && w.skey > pBlockInfo->window.skey) {
+      if (TMAX(w.skey, pBlockInfo->window.skey) <= pBlockInfo->window.ekey) {
         return true;
       }
     }
@@ -147,7 +147,7 @@ static bool overlapWithTimeWindow(SInterval* pInterval, SDataBlockInfo* pBlockIn
     w = getAlignQueryTimeWindow(pInterval, pInterval->precision, pBlockInfo->window.ekey);
     assert(w.skey <= pBlockInfo->window.ekey);
 
-    if (w.skey > pBlockInfo->window.skey) {
+    if (TMAX(w.skey, pBlockInfo->window.skey) <= TMIN(w.ekey, pBlockInfo->window.ekey)) {
       return true;
     }
 
@@ -158,7 +158,7 @@ static bool overlapWithTimeWindow(SInterval* pInterval, SDataBlockInfo* pBlockIn
       }
 
       assert(w.skey < pBlockInfo->window.skey);
-      if (w.ekey < pBlockInfo->window.ekey && w.ekey >= pBlockInfo->window.skey) {
+      if (pBlockInfo->window.skey <= TMIN(w.ekey, pBlockInfo->window.ekey)) {
         return true;
       }
     }
@@ -2038,10 +2038,34 @@ static SSDataBlock* sysTableScanUserTags(SOperatorInfo* pOperator) {
     metaReaderClear(&smr);
 
     if (numOfRows >= pOperator->resultInfo.capacity) {
-      break;
+      p->info.rows = numOfRows;
+      pInfo->pRes->info.rows = numOfRows;
+
+      relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock, false);
+      doFilterResult(pInfo);
+
+      blockDataCleanup(p);
+      numOfRows = 0;
+
+      if (pInfo->pRes->info.rows > 0) {
+        break;
+      }
     }
   }
 
+  if (numOfRows > 0) {
+    p->info.rows = numOfRows;
+    pInfo->pRes->info.rows = numOfRows;
+
+    relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock, false);
+    doFilterResult(pInfo);
+
+    blockDataCleanup(p);
+    numOfRows = 0;
+  }
+
+  blockDataDestroy(p);
+
   // todo temporarily free the cursor here, the true reason why the free is not valid needs to be found
   if (ret != 0) {
     metaCloseTbCursor(pInfo->pCur);
@@ -2049,14 +2073,6 @@ static SSDataBlock* sysTableScanUserTags(SOperatorInfo* pOperator) {
     doSetOperatorCompleted(pOperator);
   }
 
-  p->info.rows = numOfRows;
-  pInfo->pRes->info.rows = numOfRows;
-
-  relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock, false);
-  doFilterResult(pInfo);
-
-  blockDataDestroy(p);
-
   pInfo->loadInfo.totalRows += pInfo->pRes->info.rows;
   return (pInfo->pRes->info.rows == 0) ? NULL : pInfo->pRes;
 }
@@ -2213,10 +2229,34 @@ static SSDataBlock* sysTableScanUserTables(SOperatorInfo* pOperator) {
       colDataAppend(pColInfoData, numOfRows, n, false);
 
       if (++numOfRows >= pOperator->resultInfo.capacity) {
-        break;
+        p->info.rows = numOfRows;
+        pInfo->pRes->info.rows = numOfRows;
+
+        relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock, false);
+        doFilterResult(pInfo);
+
+        blockDataCleanup(p);
+        numOfRows = 0;
+
+        if (pInfo->pRes->info.rows > 0) {
+          break;
+        }
       }
     }
 
+    if (numOfRows > 0) {
+      p->info.rows = numOfRows;
+      pInfo->pRes->info.rows = numOfRows;
+
+      relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock, false);
+      doFilterResult(pInfo);
+
+      blockDataCleanup(p);
+      numOfRows = 0;
+    }
+
+    blockDataDestroy(p);
+
     // todo temporarily free the cursor here, the true reason why the free is not valid needs to be found
     if (ret != 0) {
       metaCloseTbCursor(pInfo->pCur);
@@ -2224,14 +2264,6 @@ static SSDataBlock* sysTableScanUserTables(SOperatorInfo* pOperator) {
       doSetOperatorCompleted(pOperator);
     }
 
-    p->info.rows = numOfRows;
-    pInfo->pRes->info.rows = numOfRows;
-
-    relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock, false);
-    doFilterResult(pInfo);
-
-    blockDataDestroy(p);
-
     pInfo->loadInfo.totalRows += pInfo->pRes->info.rows;
     return (pInfo->pRes->info.rows == 0) ? NULL : pInfo->pRes;
   }