diff --git a/include/util/tarray.h b/include/util/tarray.h
index beebd70dea..0e78397ecb 100644
--- a/include/util/tarray.h
+++ b/include/util/tarray.h
@@ -220,15 +220,10 @@ void taosArrayClear(SArray* pArray);
  */
 void taosArrayClearEx(SArray* pArray, void (*fp)(void*));
 
-/**
- * clear the array (remove all element)
- * @param pArray
- * @param fp
- */
-void taosArrayClearP(SArray* pArray, FDelete fp);
-
 void* taosArrayDestroy(SArray* pArray);
+
 void  taosArrayDestroyP(SArray* pArray, FDelete fp);
+
 void  taosArrayDestroyEx(SArray* pArray, FDelete fp);
 
 /**
@@ -238,12 +233,6 @@ void  taosArrayDestroyEx(SArray* pArray, FDelete fp);
  */
 void taosArraySort(SArray* pArray, __compar_fn_t comparFn);
 
-/**
- * sort string array
- * @param pArray
- */
-void taosArraySortString(SArray* pArray, __compar_fn_t comparFn);
-
 /**
  * search the array
  * @param pArray
diff --git a/source/dnode/mnode/impl/src/mndConsumer.c b/source/dnode/mnode/impl/src/mndConsumer.c
index 58f8172282..4397ea0751 100644
--- a/source/dnode/mnode/impl/src/mndConsumer.c
+++ b/source/dnode/mnode/impl/src/mndConsumer.c
@@ -538,7 +538,7 @@ static int32_t mndProcessSubscribeReq(SRpcMsg *pMsg) {
 
   int32_t code = -1;
   SArray *newSub = subscribe.topicNames;
-  taosArraySortString(newSub, taosArrayCompareString);
+  taosArraySort(newSub, taosArrayCompareString);
   taosArrayRemoveDuplicateP(newSub, taosArrayCompareString, taosMemoryFree);
 
   int32_t newTopicNum = taosArrayGetSize(newSub);
@@ -850,7 +850,8 @@ static int32_t mndConsumerActionUpdate(SSdb *pSdb, SMqConsumerObj *pOldConsumer,
 
     // add to current topic
     taosArrayPush(pOldConsumer->currentTopics, &addedTopic);
-    taosArraySortString(pOldConsumer->currentTopics, taosArrayCompareString);
+    taosArraySort(pOldConsumer->currentTopics, taosArrayCompareString);
+
     // set status
     if (taosArrayGetSize(pOldConsumer->rebNewTopics) == 0 && taosArrayGetSize(pOldConsumer->rebRemovedTopics) == 0) {
       if (pOldConsumer->status == MQ_CONSUMER_STATUS__MODIFY ||
diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index 26c9ce6810..83532c2a20 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -2543,6 +2543,7 @@ int32_t initDelSkylineIterator(STableBlockScanInfo* pBlockScanInfo, STsdbReader*
       goto _err;
     }
 
+    // TODO: opt the perf of read del index
     code = tsdbReadDelIdx(pDelFReader, aDelIdx);
     if (code != TSDB_CODE_SUCCESS) {
       taosArrayDestroy(aDelIdx);
diff --git a/source/libs/stream/src/streamUpdate.c b/source/libs/stream/src/streamUpdate.c
index 1589fddda4..1ce4a35dff 100644
--- a/source/libs/stream/src/streamUpdate.c
+++ b/source/libs/stream/src/streamUpdate.c
@@ -44,6 +44,11 @@ static void windowSBfAdd(SUpdateInfo *pInfo, uint64_t count) {
   }
 }
 
+static void clearItemHelper(void* p) {
+  SScalableBf** pBf = p;
+  tScalableBfDestroy(*pBf);
+}
+
 static void windowSBfDelete(SUpdateInfo *pInfo, uint64_t count) {
   if (count < pInfo->numSBFs) {
     for (uint64_t i = 0; i < count; ++i) {
@@ -52,7 +57,7 @@ static void windowSBfDelete(SUpdateInfo *pInfo, uint64_t count) {
       taosArrayRemove(pInfo->pTsSBFs, 0);
     }
   } else {
-    taosArrayClearP(pInfo->pTsSBFs, (FDelete)tScalableBfDestroy);
+    taosArrayClearEx(pInfo->pTsSBFs, clearItemHelper);
   }
   pInfo->minTS += pInfo->interval * count;
 }
diff --git a/source/util/src/tarray.c b/source/util/src/tarray.c
index f53b1cfd7f..ae25786375 100644
--- a/source/util/src/tarray.c
+++ b/source/util/src/tarray.c
@@ -399,9 +399,7 @@ void taosArrayDestroyEx(SArray* pArray, FDelete fp) {
 }
 
 void taosArraySort(SArray* pArray, __compar_fn_t compar) {
-  assert(pArray != NULL);
-  assert(compar != NULL);
-
+  ASSERT(pArray != NULL && compar != NULL);
   taosSort(pArray->pData, pArray->size, pArray->elemSize, compar);
 }
 
@@ -417,11 +415,6 @@ int32_t taosArraySearchIdx(const SArray* pArray, const void* key, __compar_fn_t
   return item == NULL ? -1 : (int32_t)((char*)item - (char*)pArray->pData) / pArray->elemSize;
 }
 
-void taosArraySortString(SArray* pArray, __compar_fn_t comparFn) {
-  assert(pArray != NULL);
-  taosSort(pArray->pData, pArray->size, pArray->elemSize, comparFn);
-}
-
 static int32_t taosArrayPartition(SArray* pArray, int32_t i, int32_t j, __ext_compar_fn_t fn, const void* userData) {
   void* key = taosArrayGetP(pArray, i);
   while (i < j) {