Merge pull request #5820 from taosdata/hotfix/TD-3768

[TD-3768]crash issue by query cancelled

src/query/src/qExecutor.c

@@ -1879,14 +1879,16 @@ static void doFreeQueryHandle(SQueryRuntimeEnv* pRuntimeEnv) {
 }
 
 static void destroyTsComp(SQueryRuntimeEnv *pRuntimeEnv, SQuery *pQuery) {
-  if (isTsCompQuery(pQuery)) {
+  if (isTsCompQuery(pQuery) && pRuntimeEnv->outputBuf && pRuntimeEnv->outputBuf->pDataBlock && taosArrayGetSize(pRuntimeEnv->outputBuf->pDataBlock) > 0) {
     SColumnInfoData* pColInfoData = taosArrayGet(pRuntimeEnv->outputBuf->pDataBlock, 0);
+    if (pColInfoData) {
       FILE *f = *(FILE **)pColInfoData->pData;  // TODO refactor
       if (f) {
         fclose(f);
         *(FILE **)pColInfoData->pData = NULL;
       }
     }
+  }
 }
 
 static void teardownQueryRuntimeEnv(SQueryRuntimeEnv *pRuntimeEnv) {