diff --git a/src/query/src/qAggMain.c b/src/query/src/qAggMain.c
index c82b36e1f04f308b0c75743e0dc752ffae5a0d56..f0f46b4badf51f86716896ef47ba0719051eeb60 100644
--- a/src/query/src/qAggMain.c
+++ b/src/query/src/qAggMain.c
@@ -362,7 +362,7 @@ int32_t getResultDataInfo(int32_t dataType, int32_t dataBytes, int32_t functionI
 // TODO use hash table
 int32_t isValidFunction(const char* name, int32_t len) {
   for(int32_t i = 0; i <= TSDB_FUNC_BLKINFO; ++i) {
-    int32_t nameLen = strlen(aAggs[i].name);
+    int32_t nameLen = (int32_t) strlen(aAggs[i].name);
     if (len != nameLen) {
       continue;
     }
@@ -4282,7 +4282,7 @@ static void interp_function_impl(SQLFunctionCtx *pCtx) {
       if (type == TSDB_FILL_PREV) {
         assignVal(pCtx->pOutput, pCtx->pInput, pCtx->outputBytes, pCtx->inputType);
       } else if (type == TSDB_FILL_NEXT) {
-        char* val = pCtx->pInput + pCtx->inputBytes;
+        char* val = ((char*)pCtx->pInput) + pCtx->inputBytes;
         assignVal(pCtx->pOutput, val, pCtx->outputBytes, pCtx->inputType);
       } else if (type == TSDB_FILL_LINEAR) {
         char *start = GET_INPUT_DATA(pCtx, 0);
@@ -4747,8 +4747,8 @@ void blockInfo_func(SQLFunctionCtx* pCtx) {
   STableBlockDist* pDist = (STableBlockDist*) GET_ROWCELL_INTERBUF(pResInfo);
 
   int32_t len = *(int32_t*) pCtx->pInput;
-  blockDistInfoFromBinary(pCtx->pInput + sizeof(int32_t), len, pDist);
-  pDist->rowSize = pCtx->param[0].i64;
+  blockDistInfoFromBinary((char*)pCtx->pInput + sizeof(int32_t), len, pDist);
+  pDist->rowSize = (int16_t) pCtx->param[0].i64;
 
   memcpy(pCtx->pOutput, pCtx->pInput, sizeof(int32_t) + len);
 
@@ -4767,7 +4767,7 @@ static void mergeTableBlockDist(STableBlockDist* pDist, const STableBlockDist* p
     pDist->dataBlockInfos = taosArrayInit(4, sizeof(SFileBlockInfo));
   }
 
-  taosArrayPushBatch(pDist->dataBlockInfos, pSrc->dataBlockInfos->pData, taosArrayGetSize(pSrc->dataBlockInfos));
+  taosArrayPushBatch(pDist->dataBlockInfos, pSrc->dataBlockInfos->pData, (int32_t) taosArrayGetSize(pSrc->dataBlockInfos));
 }
 
 void block_func_merge(SQLFunctionCtx* pCtx) {
@@ -4777,7 +4777,7 @@ void block_func_merge(SQLFunctionCtx* pCtx) {
   STableBlockDist info = {0};
 
   int32_t len = *(int32_t*) pCtx->pInput;
-  blockDistInfoFromBinary(pCtx->pInput + sizeof(int32_t), len, &info);
+  blockDistInfoFromBinary(((char*)pCtx->pInput) + sizeof(int32_t), len, &info);
 
   mergeTableBlockDist(pDist, &info);
 }
@@ -4851,7 +4851,7 @@ void blockinfo_func_finalizer(SQLFunctionCtx* pCtx) {
   SResultRowCellInfo *pResInfo = GET_RES_INFO(pCtx);
   STableBlockDist* pDist = (STableBlockDist*) GET_ROWCELL_INTERBUF(pResInfo);
 
-  pDist->rowSize = pCtx->param[0].i64;
+  pDist->rowSize = (int16_t)pCtx->param[0].i64;
   generateBlockDistResult(pDist, pCtx->pOutput);
 
   // cannot set the numOfIteratedElems again since it is set during previous iteration
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 2a8f55a81d695802a9b884ab3b36b5c674925543..1b74f673ee97a465b7e11102092acd18a650dee7 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -560,7 +560,7 @@ static int32_t addNewWindowResultBuf(SResultRow *pWindowRes, SDiskbasedResultBuf
   // set the number of rows in current disk page
   if (pWindowRes->pageId == -1) {  // not allocated yet, allocate new buffer
     pWindowRes->pageId = pageId;
-    pWindowRes->offset = pData->num;
+    pWindowRes->offset = (int32_t)pData->num;
 
     pData->num += size;
     assert(pWindowRes->pageId >= 0);
@@ -941,7 +941,7 @@ static void doSetInputDataBlockInfo(SOperatorInfo* pOperator, SQLFunctionCtx* pC
   for (int32_t i = 0; i < pOperator->numOfOutput; ++i) {
     pCtx[i].order = order;
     pCtx[i].size  = pBlock->info.rows;
-    pCtx[i].currentStage = pOperator->pRuntimeEnv->scanFlag;
+    pCtx[i].currentStage = (uint8_t)pOperator->pRuntimeEnv->scanFlag;
 
     setBlockStatisInfo(&pCtx[i], pBlock, &pOperator->pExpr[i].base.colInfo);
   }
@@ -968,7 +968,7 @@ static void doSetInputDataBlock(SOperatorInfo* pOperator, SQLFunctionCtx* pCtx,
   for (int32_t i = 0; i < pOperator->numOfOutput; ++i) {
     pCtx[i].order = order;
     pCtx[i].size  = pBlock->info.rows;
-    pCtx[i].currentStage = pOperator->pRuntimeEnv->scanFlag;
+    pCtx[i].currentStage = (uint8_t)pOperator->pRuntimeEnv->scanFlag;
 
     setBlockStatisInfo(&pCtx[i], pBlock, &pOperator->pExpr[i].base.colInfo);
 
@@ -1296,7 +1296,7 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SGroupbyOperatorInfo *pIn
   }
 
   for (int32_t j = 0; j < pSDataBlock->info.rows; ++j) {
-    char* val = pColInfoData->pData + bytes * j;
+    char* val = ((char*)pColInfoData->pData) + bytes * j;
     if (isNull(val, type)) {
       continue;
     }
@@ -2351,7 +2351,7 @@ void filterRowsInDataBlock(SQueryRuntimeEnv* pRuntimeEnv, SSingleColumnFilterInf
             SColumnInfoData *pColumnInfoData = taosArrayGet(pBlock->pDataBlock, i);
 
             int16_t bytes = pColumnInfoData->info.bytes;
-            memmove(pColumnInfoData->pData + start * bytes, pColumnInfoData->pData + cstart * bytes, len * bytes);
+            memmove(((char*)pColumnInfoData->pData) + start * bytes, pColumnInfoData->pData + cstart * bytes, len * bytes);
           }
 
           start += len;
@@ -3446,7 +3446,7 @@ static void toSSDataBlock(SGroupResInfo *pGroupResInfo, SQueryRuntimeEnv* pRunti
   if (pInfoData->info.type == TSDB_DATA_TYPE_TIMESTAMP) {
     STimeWindow* w = &pBlock->info.window;
     w->skey = *(int64_t*)pInfoData->pData;
-    w->ekey = *(int64_t*)(pInfoData->pData + TSDB_KEYSIZE * (pBlock->info.rows - 1));
+    w->ekey = *(int64_t*)(((char*)pInfoData->pData) + TSDB_KEYSIZE * (pBlock->info.rows - 1));
   }
 }
 
diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 94b4584b4fdb0fa4f5d2b5598eb4780972b7e0e5..064ca0c38de22fc07dfbf236cffdd6606c9f3a71 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -2644,7 +2644,7 @@ bool tsdbGetExternalRow(TsdbQueryHandleT pHandle) {
     return false;
   }
 
-  int32_t numOfCols = QH_GET_NUM_OF_COLS(pQueryHandle);
+  int32_t numOfCols = (int32_t) QH_GET_NUM_OF_COLS(pQueryHandle);
   for (int32_t i = 0; i < numOfCols; ++i) {
     SColumnInfoData* pColInfoData = taosArrayGet(pQueryHandle->pColumns, i);
     SColumnInfoData* first = taosArrayGet(pQueryHandle->prev, i);
@@ -2652,11 +2652,11 @@ bool tsdbGetExternalRow(TsdbQueryHandleT pHandle) {
     memcpy(pColInfoData->pData, first->pData, pColInfoData->info.bytes);
 
     SColumnInfoData* sec = taosArrayGet(pQueryHandle->next, i);
-    memcpy(pColInfoData->pData + pColInfoData->info.bytes, sec->pData, pColInfoData->info.bytes);
+    memcpy(((char*)pColInfoData->pData) + pColInfoData->info.bytes, sec->pData, pColInfoData->info.bytes);
 
     if (i == 0 && pColInfoData->info.type == TSDB_DATA_TYPE_TIMESTAMP) {
       cur->win.skey = *(TSKEY*)pColInfoData->pData;
-      cur->win.ekey = *(TSKEY*)(pColInfoData->pData + TSDB_KEYSIZE);
+      cur->win.ekey = *(TSKEY*)(((char*)pColInfoData->pData) + TSDB_KEYSIZE);
     }
   }