diff --git a/src/common/src/tdataformat.c b/src/common/src/tdataformat.c
index 7e551759f92faa3574c6ef842ef86154bca699d9..12ea4ad78d18a5f2b09daabb71093c153d30aca7 100644
--- a/src/common/src/tdataformat.c
+++ b/src/common/src/tdataformat.c
@@ -384,9 +384,11 @@ SDataCols *tdDupDataCols(SDataCols *pDataCols, bool keepData) {
 }
 
 void tdResetDataCols(SDataCols *pCols) {
-  pCols->numOfRows = 0;
-  for (int i = 0; i < pCols->maxCols; i++) {
-    dataColReset(pCols->cols + i);
+  if (pCols != NULL) {
+    pCols->numOfRows = 0;
+    for (int i = 0; i < pCols->maxCols; i++) {
+      dataColReset(pCols->cols + i);
+    }
   }
 }
 
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index f94c65834dd0c4154f5f2274163df7c878f9a7ac..831f0f3485cbca671a392a9bd087c6d731cd214e 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -2202,7 +2202,13 @@ static int64_t doScanAllDataBlocks(SQueryRuntimeEnv *pRuntimeEnv) {
   int32_t step = GET_FORWARD_DIRECTION_FACTOR(pQuery->order.order);
 
   SDataBlockInfo blockInfo = SDATA_BLOCK_INITIALIZER;
-  while (tsdbNextDataBlock(pQueryHandle)) {
+  while (true) {
+    if (!tsdbNextDataBlock(pQueryHandle)) {
+      if (terrno != TSDB_CODE_SUCCESS) {
+        longjmp(pRuntimeEnv->env, terrno);
+      }
+      break;
+    }
     summary->totalBlocks += 1;
 
     if (IS_QUERY_KILLED(GET_QINFO_ADDR(pRuntimeEnv))) {
@@ -3188,6 +3194,9 @@ static void setEnvBeforeReverseScan(SQueryRuntimeEnv *pRuntimeEnv, SQueryStatusI
 
   // add ref for table
   pRuntimeEnv->pSecQueryHandle = tsdbQueryTables(pQInfo->tsdb, &cond, &pQInfo->tableGroupInfo, pQInfo);
+  if (pRuntimeEnv->pSecQueryHandle == NULL) {
+    longjmp(pRuntimeEnv->env, terrno);
+  }
 
   setQueryStatus(pQuery, QUERY_NOT_COMPLETED);
   switchCtxOrder(pRuntimeEnv);
@@ -3260,6 +3269,9 @@ void scanOneTableDataBlocks(SQueryRuntimeEnv *pRuntimeEnv, TSKEY start) {
     }
 
     pRuntimeEnv->pSecQueryHandle = tsdbQueryTables(pQInfo->tsdb, &cond, &pQInfo->tableGroupInfo, pQInfo);
+    if (pRuntimeEnv->pSecQueryHandle == NULL) {
+      longjmp(pRuntimeEnv->env, terrno);
+    }
     pRuntimeEnv->windowResInfo.curIndex = qstatus.windowIndex;
 
     setQueryStatus(pQuery, QUERY_NOT_COMPLETED);
@@ -3916,7 +3928,14 @@ void skipBlocks(SQueryRuntimeEnv *pRuntimeEnv) {
   TsdbQueryHandleT pQueryHandle = pRuntimeEnv->pQueryHandle;
 
   SDataBlockInfo blockInfo = SDATA_BLOCK_INITIALIZER;
-  while (tsdbNextDataBlock(pQueryHandle)) {
+  while (true) {
+    if (!tsdbNextDataBlock(pQueryHandle)) {
+      if (terrno != TSDB_CODE_SUCCESS) {
+        longjmp(pRuntimeEnv->env, terrno);
+      }
+      break;
+    }
+
     if (IS_QUERY_KILLED(GET_QINFO_ADDR(pRuntimeEnv))) {
       finalizeQueryResult(pRuntimeEnv); // clean up allocated resource during query
       longjmp(pRuntimeEnv->env, TSDB_CODE_TSC_QUERY_CANCELLED);
@@ -3960,7 +3979,14 @@ static bool skipTimeInterval(SQueryRuntimeEnv *pRuntimeEnv, TSKEY* start) {
   STableQueryInfo *pTableQueryInfo = pQuery->current;
 
   SDataBlockInfo blockInfo = SDATA_BLOCK_INITIALIZER;
-  while (tsdbNextDataBlock(pRuntimeEnv->pQueryHandle)) {
+  while (true) {
+    if (!tsdbNextDataBlock(pRuntimeEnv->pQueryHandle)) {
+      if (terrno != TSDB_CODE_SUCCESS) {
+        longjmp(pRuntimeEnv->env, terrno);
+      }
+      break;
+    }
+
     tsdbRetrieveDataBlockInfo(pRuntimeEnv->pQueryHandle, &blockInfo);
 
     if (QUERY_IS_ASC_QUERY(pQuery)) {
@@ -4059,16 +4085,16 @@ static bool skipTimeInterval(SQueryRuntimeEnv *pRuntimeEnv, TSKEY* start) {
   return true;
 }
 
-static void setupQueryHandle(void* tsdb, SQInfo* pQInfo, bool isSTableQuery) {
+static int32_t setupQueryHandle(void* tsdb, SQInfo* pQInfo, bool isSTableQuery) {
   SQueryRuntimeEnv *pRuntimeEnv = &pQInfo->runtimeEnv;
   SQuery *pQuery = pQInfo->runtimeEnv.pQuery;
 
   if (onlyQueryTags(pQuery)) {
-    return;
+    return TSDB_CODE_SUCCESS;
   }
 
   if (isSTableQuery && (!QUERY_IS_INTERVAL_QUERY(pQuery)) && (!isFixedOutputQuery(pRuntimeEnv))) {
-    return;
+    return TSDB_CODE_SUCCESS;
   }
 
   STsdbQueryCond cond = {
@@ -4090,6 +4116,7 @@ static void setupQueryHandle(void* tsdb, SQInfo* pQInfo, bool isSTableQuery) {
     cond.twindow = pCheckInfo->win;
   }
 
+  terrno = TSDB_CODE_SUCCESS;
   if (isFirstLastRowQuery(pQuery)) {
     pRuntimeEnv->pQueryHandle = tsdbQueryLastRow(tsdb, &cond, &pQInfo->tableGroupInfo, pQInfo);
   } else if (isPointInterpoQuery(pQuery)) {
@@ -4097,6 +4124,7 @@ static void setupQueryHandle(void* tsdb, SQInfo* pQInfo, bool isSTableQuery) {
   } else {
     pRuntimeEnv->pQueryHandle = tsdbQueryTables(tsdb, &cond, &pQInfo->tableGroupInfo, pQInfo);
   }
+  return terrno;
 }
 
 static SFillColInfo* taosCreateFillColInfo(SQuery* pQuery) {
@@ -4133,7 +4161,10 @@ int32_t doInitQInfo(SQInfo *pQInfo, STSBuf *pTsBuf, void *tsdb, int32_t vgId, bo
 
   setScanLimitationByResultBuffer(pQuery);
   changeExecuteScanOrder(pQInfo, false);
-  setupQueryHandle(tsdb, pQInfo, isSTableQuery);
+  code = setupQueryHandle(tsdb, pQInfo, isSTableQuery);
+  if (code != TSDB_CODE_SUCCESS) {
+    return code;
+  }
   
   pQInfo->tsdb = tsdb;
   pQInfo->vgId = vgId;
@@ -4257,7 +4288,14 @@ static int64_t scanMultiTableDataBlocks(SQInfo *pQInfo) {
 
   int32_t step = GET_FORWARD_DIRECTION_FACTOR(pQuery->order.order);
 
-  while (tsdbNextDataBlock(pQueryHandle)) {
+  while (true) {
+    if (!tsdbNextDataBlock(pQueryHandle)) {
+      if (terrno != TSDB_CODE_SUCCESS) {
+        longjmp(pRuntimeEnv->env, terrno);
+      }
+      break;
+    }
+
     summary->totalBlocks += 1;
     
     if (IS_QUERY_KILLED(pQInfo)) {
@@ -4338,6 +4376,9 @@ static bool multiTableMultioutputHelper(SQInfo *pQInfo, int32_t index) {
   pRuntimeEnv->pQueryHandle = tsdbQueryTables(pQInfo->tsdb, &cond, &gp, pQInfo);
   taosArrayDestroy(tx);
   taosArrayDestroy(g1);
+  if (pRuntimeEnv->pQueryHandle == NULL) {
+    longjmp(pRuntimeEnv->env, terrno);
+  }
 
   if (pRuntimeEnv->pTSBuf != NULL) {
     if (pRuntimeEnv->cur.vgroupIndex == -1) {
@@ -4405,6 +4446,12 @@ static void sequentialTableProcess(SQInfo *pQInfo) {
       } else {
         pRuntimeEnv->pQueryHandle = tsdbQueryRowsInExternalWindow(pQInfo->tsdb, &cond, &gp, pQInfo);
       }
+
+      taosArrayDestroy(tx);
+      taosArrayDestroy(g1);
+      if (pRuntimeEnv->pQueryHandle == NULL) {
+        longjmp(pRuntimeEnv->env, terrno);
+      }
       
       initCtxOutputBuf(pRuntimeEnv);
       
@@ -4469,6 +4516,9 @@ static void sequentialTableProcess(SQInfo *pQInfo) {
       pRuntimeEnv->pQueryHandle = tsdbQueryTables(pQInfo->tsdb, &cond, &gp, pQInfo);
       taosArrayDestroy(g1);
       taosArrayDestroy(tx);
+      if (pRuntimeEnv->pQueryHandle == NULL) {
+        longjmp(pRuntimeEnv->env, terrno);
+      }
 
       SArray* s = tsdbGetQueriedTableList(pRuntimeEnv->pQueryHandle);
       assert(taosArrayGetSize(s) >= 1);
@@ -4664,6 +4714,9 @@ static void doSaveContext(SQInfo *pQInfo) {
 
   pRuntimeEnv->prevGroupId = INT32_MIN;
   pRuntimeEnv->pSecQueryHandle = tsdbQueryTables(pQInfo->tsdb, &cond, &pQInfo->tableGroupInfo, pQInfo);
+  if (pRuntimeEnv->pSecQueryHandle == NULL) {
+    longjmp(pRuntimeEnv->env, terrno);
+  }
   
   setQueryStatus(pQuery, QUERY_NOT_COMPLETED);
   switchCtxOrder(pRuntimeEnv);
diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 070e6e7ac55aad27b34512c37f1395bdf0a97437..0697e14b69da5615f4c2b1df814aad2cd8997bcc 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -179,7 +179,10 @@ TsdbQueryHandleT* tsdbQueryTables(TSDB_REPO_T* tsdb, STsdbQueryCond* pCond, STab
   pQueryHandle->outputCapacity = ((STsdbRepo*)tsdb)->config.maxRowsPerFileBlock;
   pQueryHandle->allocSize   = 0;
 
-  tsdbInitReadHelper(&pQueryHandle->rhelper, (STsdbRepo*) tsdb);
+  if (tsdbInitReadHelper(&pQueryHandle->rhelper, (STsdbRepo*) tsdb) != 0) {
+    free(pQueryHandle);
+    return NULL;
+  }
   tsdbTakeMemSnapshot(pQueryHandle->pTsdb, &pQueryHandle->mem, &pQueryHandle->imem);
 
   size_t sizeOfGroup = taosArrayGetSize(groupList->pGroupList);
@@ -238,11 +241,11 @@ TsdbQueryHandleT* tsdbQueryTables(TSDB_REPO_T* tsdb, STsdbQueryCond* pCond, STab
 
 TsdbQueryHandleT tsdbQueryLastRow(TSDB_REPO_T *tsdb, STsdbQueryCond *pCond, STableGroupInfo *groupList, void* qinfo) {
   STsdbQueryHandle *pQueryHandle = (STsdbQueryHandle*) tsdbQueryTables(tsdb, pCond, groupList, qinfo);
-  
-  pQueryHandle->type = TSDB_QUERY_TYPE_LAST;
-  pQueryHandle->order = TSDB_ORDER_DESC;
-  
-  changeQueryHandleForLastrowQuery(pQueryHandle);
+  if (pQueryHandle != NULL) {
+    pQueryHandle->type = TSDB_QUERY_TYPE_LAST;
+    pQueryHandle->order = TSDB_ORDER_DESC;
+    changeQueryHandleForLastrowQuery(pQueryHandle);
+  }
   return pQueryHandle;
 }
 
@@ -264,9 +267,10 @@ SArray* tsdbGetQueriedTableList(TsdbQueryHandleT *pHandle) {
 
 TsdbQueryHandleT tsdbQueryRowsInExternalWindow(TSDB_REPO_T *tsdb, STsdbQueryCond* pCond, STableGroupInfo *groupList, void* qinfo) {
   STsdbQueryHandle *pQueryHandle = (STsdbQueryHandle*) tsdbQueryTables(tsdb, pCond, groupList, qinfo);
-  
-  pQueryHandle->type = TSDB_QUERY_TYPE_EXTERNAL;
-  changeQueryHandleForInterpQuery(pQueryHandle);
+  if (pQueryHandle != NULL) {
+    pQueryHandle->type = TSDB_QUERY_TYPE_EXTERNAL;
+    changeQueryHandleForInterpQuery(pQueryHandle);
+  }
   return pQueryHandle;
 }
 
@@ -1522,7 +1526,10 @@ bool tsdbNextDataBlock(TsdbQueryHandleT* pHandle) {
       pSecQueryHandle->activeIndex = 0;
       pSecQueryHandle->outputCapacity = ((STsdbRepo*)pSecQueryHandle->pTsdb)->config.maxRowsPerFileBlock;
   
-      tsdbInitReadHelper(&pSecQueryHandle->rhelper, (STsdbRepo*) pSecQueryHandle->pTsdb);
+      if (tsdbInitReadHelper(&pSecQueryHandle->rhelper, (STsdbRepo*) pSecQueryHandle->pTsdb) != 0) {
+        free(pSecQueryHandle);
+        return false;
+      }
       tsdbTakeMemSnapshot(pSecQueryHandle->pTsdb, &pSecQueryHandle->mem, &pSecQueryHandle->imem);
 
       // allocate buffer in order to load data blocks from file
@@ -1606,7 +1613,9 @@ bool tsdbNextDataBlock(TsdbQueryHandleT* pHandle) {
   }
   
   // TODO: opt by consider the scan order
-  return doHasDataInBuffer(pQueryHandle);
+  bool ret = doHasDataInBuffer(pQueryHandle);
+  terrno = TSDB_CODE_SUCCESS;
+  return ret;
 }
 
 void changeQueryHandleForLastrowQuery(TsdbQueryHandleT pqHandle) {