diff --git a/tests/script/tsim/valgrind/basic1.sim b/tests/script/tsim/valgrind/basic1.sim
index a259dd9219..2d70284c8b 100644
--- a/tests/script/tsim/valgrind/basic1.sim
+++ b/tests/script/tsim/valgrind/basic1.sim
@@ -45,17 +45,7 @@ while $i < $tbNum
 endw 
 
 print =============== step3: tb
-sql explain analyze select ts from stb where -2;
-sql explain analyze select ts from tb1;
-sql explain analyze select ts from stb order by ts;
-sql explain analyze select * from information_schema.user_stables;
-sql explain analyze select count(*),sum(tbcol) from tb1;
-sql explain analyze select count(*),sum(tbcol) from stb;
-sql explain analyze select count(*),sum(tbcol) from stb group by tbcol;
-sql explain analyze select * from information_schema.user_stables;
-sql explain analyze verbose true select * from information_schema.user_stables where db_name='db2';
-sql explain analyze verbose true select count(tbcol), avg(tbcol), max(tbcol), min(tbcol), count(tbcol) from stb where ts <= 1601481840000 and ts >= 1601481800000 partition by tgcol interval(1m) fill(value, 0)
-sql explain select count(tbcol), avg(tbcol), max(tbcol), min(tbcol), count(tbcol) from stb where ts <= 1601481840000 and ts >= 1601481800000 partition by tgcol interval(1m) fill(value, 0)
+sql select _wstart, count(*) from tb1 session(ts,1m)
 
 _OVER:
 system sh/exec.sh -n dnode1 -s stop -x SIGINT