Merge pull request #8946 from taosdata/hotfix/TS-816

[TS-816]<fix>: query cannot stop in windows

src/query/src/qExecutor.c

@@ -137,7 +137,7 @@ do {                                       \
 uint64_t queryHandleId = 0;
 
 int32_t getMaximumIdleDurationSec() {
-  return tsShellActivityTimer * 2;
+  return tsShellActivityTimer * 10;
 }
 int64_t genQueryId(void) {
   int64_t uid = 0;

src/query/src/queryMain.c

@@ -279,6 +279,7 @@ bool qTableQuery(qinfo_t qinfo, uint64_t *qId) {
 
   if (isQueryKilled(pQInfo)) {
     qDebug("QInfo:0x%"PRIx64" it is already killed, abort", pQInfo->qId);
+    pQInfo->runtimeEnv.outputBuf = NULL;
     return doBuildResCheck(pQInfo);
   }