remove some warnings

src/client/src/tscSql.c

@@ -28,6 +28,7 @@
 #include "tsocket.h"
 #include "ttimer.h"
 #include "tutil.h"
+#include "ihash.h"
 
 TAOS *taos_connect_imp(const char *ip, const char *user, const char *pass, const char *db, uint16_t port,
                        void (*fp)(void *, TAOS_RES *, int), void *param, void **taos) {

src/system/detail/src/mgmtShell.c

@@ -721,7 +721,7 @@ int mgmtProcessAlterUserMsg(char *pMsg, int msgLen, SConnObj *pConn) {
 
     if (hasRight) {
       memset(pUser->pass, 0, sizeof(pUser->pass));
-      taosEncryptPass(pAlter->pass, strlen(pAlter->pass), pUser->pass);
+      taosEncryptPass((uint8_t*)pAlter->pass, strlen(pAlter->pass), pUser->pass);
       code = mgmtUpdateUser(pUser);
       mLPrint("user:%s password is altered by %s, code:%d", pAlter->user, pConn->pUser->user, code);
     } else {

src/util/src/tsched.c

@@ -145,6 +145,8 @@ void *taosProcessSchedQueue(void *param) {
     else if (msg.tfp)
       (*(msg.tfp))(msg.ahandle, msg.thandle);
   }
+
+  return NULL;
 }
 
 int taosScheduleTask(void *qhandle, SSchedMsg *pMsg) {