diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index c82f54f32b..b5d09d6fd5 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -402,7 +402,7 @@ static int32_t smlModifyDBSchemas(SSmlHandle* info) {
     code = catalogGetSTableMeta(info->pCatalog, info->taos->pAppInfo->pTransporter, &ep, &pName, &pTableMeta);
 
     if (code == TSDB_CODE_PAR_TABLE_NOT_EXIST || code == TSDB_CODE_MND_INVALID_STB) {
-      SSchemaAction schemaAction = {.action = SCHEMA_ACTION_CREATE_STABLE};
+      SSchemaAction schemaAction = { SCHEMA_ACTION_CREATE_STABLE, 0};
       memcpy(schemaAction.createSTable.sTableName, superTable, superTableLen);
       schemaAction.createSTable.tags = sTableData->tags;
       schemaAction.createSTable.fields = sTableData->cols;
@@ -1505,8 +1505,8 @@ static int32_t smlParseLine(SSmlHandle* info, const char* sql) {
 
     tinfo->sTableName = elements.measure;
     tinfo->sTableNameLen = elements.measureLen;
-    RandTableName rName = {.tags=tinfo->tags, .sTableName=tinfo->sTableName, .sTableNameLen=tinfo->sTableNameLen,
-                            .childTableName=tinfo->childTableName};
+    RandTableName rName = { tinfo->tags, tinfo->sTableName, tinfo->sTableNameLen,
+                            tinfo->childTableName, 0 };
     buildChildTableName(&rName);
     tinfo->uid = rName.uid;
 
diff --git a/source/dnode/vnode/src/tsdb/tsdbMemTable2.c b/source/dnode/vnode/src/tsdb/tsdbMemTable2.c
index 3168ff53f6..2acca738fb 100644
--- a/source/dnode/vnode/src/tsdb/tsdbMemTable2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbMemTable2.c
@@ -38,7 +38,7 @@ struct SMemTable {
 
 struct SMemSkipListNode {
   int8_t            level;
-  SMemSkipListNode *forwards[];
+  SMemSkipListNode *forwards[1]; // Windows does not allow 0 
 };
 
 struct SMemSkipList {
@@ -46,7 +46,7 @@ struct SMemSkipList {
   int8_t           maxLevel;
   int8_t           level;
   int32_t          size;
-  SMemSkipListNode pHead[];
+  SMemSkipListNode pHead[1]; // Windows does not allow 0 
 };
 
 struct SMemData {
diff --git a/source/os/src/osMemory.c b/source/os/src/osMemory.c
index 3400f8c516..7c877b463a 100644
--- a/source/os/src/osMemory.c
+++ b/source/os/src/osMemory.c
@@ -103,7 +103,8 @@ Dwarf_Debug tDbg;
 static TdThreadOnce traceThreadInit = PTHREAD_ONCE_INIT;
 
 void endTrace() {
-  if (traceThreadInit != PTHREAD_ONCE_INIT) {
+  TdThreadOnce tmp = PTHREAD_ONCE_INIT;
+  if (memcmp(&traceThreadInit, &tmp, sizeof(TdThreadOnce)) != 0) {
     delete_lookup_table(&lookup_table);
     dwarf_finish(tDbg);
   }
diff --git a/source/util/src/tcache.c b/source/util/src/tcache.c
index 9dcbafca7a..10a5475555 100644
--- a/source/util/src/tcache.c
+++ b/source/util/src/tcache.c
@@ -911,7 +911,8 @@ void taosCacheRefresh(SCacheObj *pCacheObj, __cache_trav_fn_t fp, void *param1)
 
 void taosStopCacheRefreshWorker(void) {
   stopRefreshWorker = true;
-  if(cacheThreadInit != PTHREAD_ONCE_INIT) taosThreadJoin(cacheRefreshWorker, NULL);
+  TdThreadOnce tmp = PTHREAD_ONCE_INIT;
+  if (memcmp(&cacheRefreshWorker, &tmp, sizeof(TdThreadOnce)) != 0) taosThreadJoin(cacheRefreshWorker, NULL);
   taosArrayDestroy(pCacheArrayList);
 }