diff --git a/source/dnode/mnode/impl/src/mndSubscribe.c b/source/dnode/mnode/impl/src/mndSubscribe.c
index 21539a63138a0214eb9fcf4ee3ff36843090e287..4d19110f31ffa9e01a38c4bd60ab375e608a65d4 100644
--- a/source/dnode/mnode/impl/src/mndSubscribe.c
+++ b/source/dnode/mnode/impl/src/mndSubscribe.c
@@ -772,7 +772,7 @@ static SSdbRow *mndSubActionDecode(SSdbRaw *pRaw) {
   if (pSub->unassignedVgs != NULL) {
     int32_t size = (int32_t)taosArrayGetSize(pSub->unassignedVgs);
     for (int32_t i = 0; i < size; ++i) {
-      SMqVgEp *pMqVgEp = taosArrayGet(pSub->unassignedVgs, i);
+      SMqVgEp *pMqVgEp = (SMqVgEp *)taosArrayGetP(pSub->unassignedVgs, i);
       tmsgUpdateDnodeEpSet(&pMqVgEp->epSet);
     }
   }
@@ -782,7 +782,7 @@ static SSdbRow *mndSubActionDecode(SSdbRaw *pRaw) {
       SMqConsumerEp *pConsumerEp = pIter;
       int32_t        size = (int32_t)taosArrayGetSize(pConsumerEp->vgs);
       for (int32_t i = 0; i < size; ++i) {
-        SMqVgEp *pMqVgEp = taosArrayGet(pConsumerEp->vgs, i);
+        SMqVgEp *pMqVgEp = (SMqVgEp *)taosArrayGetP(pConsumerEp->vgs, i);
         tmsgUpdateDnodeEpSet(&pMqVgEp->epSet);
       }
       pIter = taosHashIterate(pSub->consumerHash, pIter);
diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index da8dace3622a7b190694b472e975c436f356022e..8ccd0c78fc7379df991d1f4b6d0a5662401223ff 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -1920,7 +1920,9 @@ FETCH_NEXT_BLOCK:
         doFilter(pInfo->pRes, pOperator->exprSupp.pFilterInfo, NULL);
         pInfo->pRes->info.dataLoad = 1;
         blockDataUpdateTsWindow(pInfo->pRes, pInfo->primaryTsIndex);
-        return pInfo->pRes;
+        if (pInfo->pRes->info.rows > 0) {
+          return pInfo->pRes;
+        }
       } break;
       case STREAM_SCAN_FROM_DELETE_DATA: {
         generateScanRange(pInfo, pInfo->pUpdateDataRes, pInfo->pUpdateRes);
diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index 9631aa76bb313b56a63cb4c6fc29e9316ecfab8f..6e3c8f111c1594279aa9ffc05d61ab342bfe4482 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -1940,6 +1940,7 @@ int32_t apercentileFunctionMerge(SqlFunctionCtx* pCtx) {
   }
 
   if (pInfo->algo != APERCT_ALGO_TDIGEST) {
+    buildHistogramInfo(pInfo);
     qDebug("%s after merge, total:%" PRId64 ", numOfEntry:%d, %p", __FUNCTION__, pInfo->pHisto->numOfElems,
            pInfo->pHisto->numOfEntries, pInfo->pHisto);
   }