fix crash issue

src/client/inc/tsclient.h

@@ -262,6 +262,7 @@ typedef struct {
   uint8_t msgType;
   char    reserve1[3];        // fix bus error on arm32
   bool    autoCreated;        // create table if it is not existed during retrieve table meta in mnode
+  bool    subCmd;
   
   union {
     int32_t count;

src/client/src/tscUtil.c

@@ -497,7 +497,11 @@ void tscResetSqlCmd(SSqlCmd* pCmd, bool removeMeta) {
 
   pCmd->pTableBlockHashList = tscDestroyBlockHashTable(pCmd->pTableBlockHashList, removeMeta);
   pCmd->pDataBlocks = tscDestroyBlockArrayList(pCmd->pDataBlocks);
+  if (pCmd->subCmd) {
+    pCmd->pUdfInfo = taosArrayDestroy(pCmd->pUdfInfo);
+  } else {
     pCmd->pUdfInfo = tscDestroyUdfArrayList(pCmd->pUdfInfo);
+  }
   tscFreeQueryInfo(pCmd, removeMeta);
 }
 
@@ -2282,6 +2286,8 @@ SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, __async_cb_func_t
   SSqlCmd* pnCmd  = &pNew->cmd;
   memcpy(pnCmd, pCmd, sizeof(SSqlCmd));
 
+  pnCmd->subCmd    = true;
+  
   pnCmd->command = cmd;
   pnCmd->payload = NULL;
   pnCmd->allocSize = 0;

src/query/inc/qUdf.h

@@ -51,6 +51,8 @@ typedef struct SUdfInfo {
   SUdfInit init;
   char *content;
   char *path;
+
+  bool cloned;
 } SUdfInfo;
 
 //script