fix: fix case issues

source/dnode/mnode/impl/src/mndShow.c

@@ -238,7 +238,7 @@ static int32_t mndProcessRetrieveSysTableReq(SRpcMsg *pReq) {
   } else {
     memcpy(pReq->info.conn.user, TSDB_DEFAULT_USER, strlen(TSDB_DEFAULT_USER) + 1);
   }
-  if (mndCheckShowPrivilege(pMnode, pReq->info.conn.user, pShow->type, retrieveReq.db) != 0) {
+  if (retrieveReq.db[0] && mndCheckShowPrivilege(pMnode, pReq->info.conn.user, pShow->type, retrieveReq.db) != 0) {
     return -1;
   }
 

tests/script/tsim/user/privilege_sysinfo.sim

@@ -45,19 +45,19 @@ sql_error drop database db
 sql_error use db
 sql_error alter database db replica 1;
 sql_error show db.vgroups
-sql_error select * from information_schema.ins_stables where db_name = 'db'
-sql_error select * from information_schema.ins_tables where db_name = 'db'
+sql select * from information_schema.ins_stables where db_name = 'db'
+sql select * from information_schema.ins_tables where db_name = 'db'
 
 print =============== check show
-sql_error select * from information_schema.ins_users
+sql select * from information_schema.ins_users
 sql_error show cluster
-sql_error select * from information_schema.ins_dnodes
-sql_error select * from information_schema.ins_mnodes
+sql select * from information_schema.ins_dnodes
+sql select * from information_schema.ins_mnodes
 sql_error show snodes
-sql_error select * from information_schema.ins_qnodes
+sql select * from information_schema.ins_qnodes
 sql_error show bnodes
 sql_error show grants
 sql_error show dnode 1 variables;
 sql show variables;
 
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file
+system sh/exec.sh -n dnode1 -s stop -x SIGINT