[TS-1029]<fix>(query): added some memory allocation checks

src/client/src/tscServer.c

@@ -1861,6 +1861,13 @@ int tscProcessRetrieveGlobalMergeRsp(SSqlObj *pSql) {
 
     tscDebug("0x%"PRIx64" create QInfo 0x%"PRIx64" to execute query processing", pSql->self, pSql->self);
     pQueryInfo->pQInfo = createQInfoFromQueryNode(pQueryInfo, &tableGroupInfo, NULL, NULL, pRes->pMerger, MERGE_STAGE, pSql->self);
+    if (pQueryInfo->pQInfo == NULL) {
+      taosHashCleanup(tableGroupInfo.map);
+      taosArrayDestroy(&group);
+      tscAsyncResultOnError(pSql);
+      pRes->code = TSDB_CODE_QRY_OUT_OF_MEMORY;
+      return pRes->code;
+    }
   }
 
   uint64_t localQueryId = pSql->self;

src/client/src/tscSubquery.c

@@ -3902,8 +3902,11 @@ void* createQInfoFromQueryNode(SQueryInfo* pQueryInfo, STableGroupInfo* pTableGr
 
   STsBufInfo bufInfo = {0};
   SQueryParam param = {.pOperator = pa};
-  /*int32_t code = */initQInfo(&bufInfo, NULL, pSourceOperator, pQInfo, &param, NULL, 0, merger);
+  int32_t code = initQInfo(&bufInfo, NULL, pSourceOperator, pQInfo, &param, NULL, 0, merger);
   taosArrayDestroy(&pa);
+  if (code != TSDB_CODE_SUCCESS) {
+    goto _cleanup;
+  }
 
   return pQInfo;
 

src/query/src/qFill.c

@@ -354,6 +354,10 @@ SFillInfo* taosCreateFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int3
   }
 
   SFillInfo* pFillInfo = calloc(1, sizeof(SFillInfo));
+  if (pFillInfo == NULL) {
+    return NULL;
+  }
+
   taosResetFillInfo(pFillInfo, skey);
 
   pFillInfo->order     = order;
@@ -371,6 +375,10 @@ SFillInfo* taosCreateFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int3
   pFillInfo->interval.slidingUnit  = slidingUnit;
 
   pFillInfo->pData = malloc(POINTER_BYTES * numOfCols);
+  if (pFillInfo->pData == NULL) {
+    tfree(pFillInfo);
+    return NULL;
+  }
 
 //  if (numOfTags > 0) {
     pFillInfo->pTags = calloc(numOfCols, sizeof(SFillTagColInfo));