diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index 1ef6d55b27..a13a757bbe 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -89,7 +89,7 @@
 ./test.sh -f tsim/parser/alter.sim
 # jira ./test.sh -f tsim/parser/alter1.sim
 ./test.sh -f tsim/parser/auto_create_tb_drop_tb.sim
-# jira ./test.sh -f tsim/parser/auto_create_tb.sim
+./test.sh -f tsim/parser/auto_create_tb.sim
 ./test.sh -f tsim/parser/between_and.sim
 ./test.sh -f tsim/parser/binary_escapeCharacter.sim
 # jira ./test.sh -f tsim/parser/col_arithmetic_operation.sim     
@@ -121,25 +121,21 @@
 ./test.sh -f tsim/parser/insert_multiTbl.sim
 ./test.sh -f tsim/parser/insert_tb.sim
 # jira ./test.sh -f tsim/parser/interp.sim
-# ./test.sh -f tsim/parser/join.sim
-# ./test.sh -f tsim/parser/join_manyblocks.sim
+./test.sh -f tsim/parser/join_manyblocks.sim
 ## ./test.sh -f tsim/parser/join_multitables.sim
 # ./test.sh -f tsim/parser/join_multivnode.sim
+# jira ./test.sh -f tsim/parser/join.sim
 ./test.sh -f tsim/parser/last_cache.sim
-## ./test.sh -f tsim/parser/last_groupby.sim
+./test.sh -f tsim/parser/last_groupby.sim
 # jira ./test.sh -f tsim/parser/lastrow.sim
-## ./test.sh -f tsim/parser/like.sim
-# ./test.sh -f tsim/parser/limit.sim
-# ./test.sh -f tsim/parser/limit1.sim
-# ./test.sh -f tsim/parser/limit1_tblocks100.sim
-## ./test.sh -f tsim/parser/limit2.sim
-## ./test.sh -f tsim/parser/limit2_tblocks100.sim
-## ./test.sh -f tsim/parser/limit_stb.sim
-## ./test.sh -f tsim/parser/limit_tb.sim
-## ./test.sh -f tsim/parser/line_insert.sim
+./test.sh -f tsim/parser/like.sim
+# jira ./test.sh -f tsim/parser/limit.sim
+# jira ./test.sh -f tsim/parser/limit1.sim
+# jira ./test.sh -f tsim/parser/limit2.sim
+# jira ./test.sh -f tsim/parser/line_insert.sim
 ./test.sh -f tsim/parser/mixed_blocks.sim
 ./test.sh -f tsim/parser/nchar.sim
-# ./test.sh -f tsim/parser/nestquery.sim
+# jira ./test.sh -f tsim/parser/nestquery.sim
 # jira ./test.sh -f tsim/parser/null_char.sim
 ./test.sh -f tsim/parser/precision_ns.sim
 ./test.sh -f tsim/parser/projection_limit_offset.sim
@@ -165,7 +161,8 @@
 # jira ./test.sh -f tsim/parser/udf_dll_stable.sim
 # jira ./test.sh -f tsim/parser/udf_dll.sim
 # jira ./test.sh -f tsim/parser/udf.sim
-# ./test.sh -f tsim/parser/union.sim
+./test.sh -f tsim/parser/union.sim
+# jira ./test.sh -f tsim/parser/union_sysinfo.sim
 # jira ./test.sh -f tsim/parser/where.sim
 
 # ---- query
diff --git a/tests/script/tsim/parser/auto_create_tb.sim b/tests/script/tsim/parser/auto_create_tb.sim
index 485f4f480c..3a64b79239 100644
--- a/tests/script/tsim/parser/auto_create_tb.sim
+++ b/tests/script/tsim/parser/auto_create_tb.sim
@@ -282,7 +282,7 @@ if $rows != 2 then
   return -1
 endi
 
-sql insert into tick_000001 ('ts', 'last_prc', 'volume', 'amount', 'oi', 'bid_prc1', 'ask_prc1') using tick tags (000001, Stocks) VALUES (1546391700000, 0.000000, 0, 0.000000, 0, 0.000000, 10.320000);
+sql insert into tick_000001 (ts, last_prc, volume, amount, oi, bid_prc1, ask_prc1) using tick tags ('000001', 'Stocks') VALUES (1546391700000, 0.000000, 0, 0.000000, 0, 0.000000, 10.320000);
 sql select tbname from tick
 if $rows != 1 then
    return -1
diff --git a/tests/script/tsim/parser/join.sim b/tests/script/tsim/parser/join.sim
index 55842d5c16..fa03ad8214 100644
--- a/tests/script/tsim/parser/join.sim
+++ b/tests/script/tsim/parser/join.sim
@@ -233,8 +233,15 @@ endi
 
 print 1
 #select + where condition + interval query
-sql select count(join_tb1.*) from $tb1 , $tb2 where $ts1 = $ts2 and join_tb1.ts >= 100000 and join_tb0.c7 = true interval(10a) order by join_tb0.ts desc;
+print select count(join_tb1.*) from $tb1 , $tb2 where $ts1 = $ts2 and join_tb1.ts >= 100000 and join_tb0.c7 = true interval(10a) order by _wstart asc;
+sql select count(join_tb1.*) from $tb1 , $tb2 where $ts1 = $ts2 and join_tb1.ts >= 100000 and join_tb0.c7 = true interval(10a) order by _wstart asc;
+$val = 100
+if $rows != $val then
+  return -1
+endi
 
+print select count(join_tb1.*) from $tb1 , $tb2 where $ts1 = $ts2 and join_tb1.ts >= 100000 and join_tb0.c7 = true interval(10a) order by _wstart desc;
+sql select count(join_tb1.*) from $tb1 , $tb2 where $ts1 = $ts2 and join_tb1.ts >= 100000 and join_tb0.c7 = true interval(10a) order by _wstart desc;
 $val = 100
 if $rows != $val then
   return -1
diff --git a/tests/script/tsim/parser/join_manyblocks.sim b/tests/script/tsim/parser/join_manyblocks.sim
index eb5e34b079..154316a03f 100644
--- a/tests/script/tsim/parser/join_manyblocks.sim
+++ b/tests/script/tsim/parser/join_manyblocks.sim
@@ -73,8 +73,6 @@ while $i < $tbNum
   $tstart = 100000
 endw
 
-sleep 100
-
 print ===============join_manyblocks.sim
 print ==============> td-3313
 sql select join_mt0.ts,join_mt0.ts,join_mt0.t1 from join_mt0, join_mt1 where join_mt0.ts=join_mt1.ts and join_mt0.t1=join_mt1.t1;
diff --git a/tests/script/tsim/parser/last_groupby.sim b/tests/script/tsim/parser/last_groupby.sim
index 8f9574412d..68d7f10fe2 100644
--- a/tests/script/tsim/parser/last_groupby.sim
+++ b/tests/script/tsim/parser/last_groupby.sim
@@ -4,14 +4,11 @@ system sh/exec.sh -n dnode1 -s start
 sql connect
 
 print ======================== dnode1 start
-
 $db = testdb
-
 sql create database $db
 sql use $db
 
 sql create stable st2 (ts timestamp, f1 int, f2 float, f3 double, f4 bigint, f5 smallint, f6 tinyint, f7 bool, f8 binary(10), f9 nchar(10)) tags (id1 int, id2 float, id3 nchar(10), id4 double, id5 smallint, id6 bigint, id7 binary(10))
-
 sql create table tb1 using st2 tags (1,1.0,"1",1.0,1,1,"1");
  
 sql insert into tb1 values (now-200s,1,1.0,1.0,1,1,1,true,"1","1")
@@ -23,16 +20,13 @@ sql insert into tb1 values (now+300s,4,4.0,4.0,4,4,4,true,"4","4")
 sql insert into tb1 values (now+400s,4,4.0,4.0,4,4,4,true,"4","4")
 sql insert into tb1 values (now+500s,4,4.0,4.0,4,4,4,true,"4","4")
 
-sql select f1,last(*) from st2 group by f1;
-
+sql select f1, last(*) from st2 group by f1 order by f1;
 if $rows != 4 then
   return -1
 endi
-
 if $data00 != 1 then 
   return -1
 endi
-
 if $data02 != 1 then 
   print $data02
   return -1
@@ -59,15 +53,13 @@ if $data09 != 1 then
   return -1
 endi
 
-sql select f1,last(f1,st2.*) from st2 group by f1;
+sql select f1, last(f1,st2.*) from st2 group by f1 order by f1;
 if $rows != 4 then
   return -1
 endi
-
 if $data00 != 1 then 
   return -1
 endi
-
 if $data01 != 1 then 
   return -1
 endi
diff --git a/tests/script/tsim/parser/like.sim b/tests/script/tsim/parser/like.sim
index e7c191ed92..96672aee3c 100644
--- a/tests/script/tsim/parser/like.sim
+++ b/tests/script/tsim/parser/like.sim
@@ -5,7 +5,6 @@ sql connect
 
 print ======================== dnode1 start
 
-
 $db = testdb
 sql drop database if exists $db
 sql create database $db cachemodel 'last_value'
@@ -32,7 +31,6 @@ if $rows != 2 then
   return -1
 endi
 
-
 sql select b from $table1 where b like 'table\_name'
 if $rows != 1 then
   return -1
diff --git a/tests/script/tsim/parser/limit1.sim b/tests/script/tsim/parser/limit1.sim
index 1f72999784..b6d0629c8f 100644
--- a/tests/script/tsim/parser/limit1.sim
+++ b/tests/script/tsim/parser/limit1.sim
@@ -18,7 +18,7 @@ $stb = $stbPrefix . $i
 
 sql drop database $db -x step1
 step1:
-sql create database $db 
+sql create database $db cache 16
 print ====== create tables
 sql use $db
 sql create table $stb (ts timestamp, c1 int, c2 bigint, c3 float, c4 double, c5 smallint, c6 tinyint, c7 bool, c8 binary(10), c9 nchar(10)) tags(t1 int)
@@ -57,11 +57,10 @@ run tsim/parser/limit1_stb.sim
 
 print ================== restart server to commit data into disk
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
-sleep 500
 system sh/exec.sh -n dnode1 -s start
 print ================== server restart completed
 
 run tsim/parser/limit1_tb.sim
 run tsim/parser/limit1_stb.sim
 
-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
diff --git a/tests/script/tsim/parser/limit1_stb.sim b/tests/script/tsim/parser/limit1_stb.sim
index 513e2fac02..879fd7882f 100644
--- a/tests/script/tsim/parser/limit1_stb.sim
+++ b/tests/script/tsim/parser/limit1_stb.sim
@@ -1,4 +1,3 @@
-sleep 100
 sql connect
 
 $dbPrefix = lm1_db
diff --git a/tests/script/tsim/parser/limit1_tb.sim b/tests/script/tsim/parser/limit1_tb.sim
index 300af7ac7b..5a7c1bc201 100644
--- a/tests/script/tsim/parser/limit1_tb.sim
+++ b/tests/script/tsim/parser/limit1_tb.sim
@@ -1,4 +1,3 @@
-sleep 100
 sql connect
 
 $dbPrefix = lm1_db
diff --git a/tests/script/tsim/parser/limit1_tblocks100.sim b/tests/script/tsim/parser/limit1_tblocks100.sim
deleted file mode 100644
index f541ea7158..0000000000
--- a/tests/script/tsim/parser/limit1_tblocks100.sim
+++ /dev/null
@@ -1,67 +0,0 @@
-system sh/stop_dnodes.sh
-system sh/deploy.sh -n dnode1 -i 1
-system sh/exec.sh -n dnode1 -s start
-sql connect
-
-$dbPrefix = lm1_db
-$tbPrefix = lm1_tb
-$stbPrefix = lm1_stb
-$tbNum = 10
-$rowNum = 10000
-$totalNum = $tbNum * $rowNum
-$ts0 = 1537146000000
-$delta = 600000
-print ========== limit1.sim
-$i = 0
-$db = $dbPrefix . $i
-$stb = $stbPrefix . $i
-
-sql drop database $db -x step1
-step1:
-sql create database $db cache 16
-print ====== create tables
-sql use $db
-sql create table $stb (ts timestamp, c1 int, c2 bigint, c3 float, c4 double, c5 smallint, c6 tinyint, c7 bool, c8 binary(10), c9 nchar(10)) tags(t1 int)
-
-$i = 0
-$ts = $ts0
-$halfNum = $tbNum / 2
-while $i < $halfNum
-  $tbId = $i + $halfNum
-  $tb = $tbPrefix . $i
-  $tb1 = $tbPrefix . $tbId
-  sql create table $tb using $stb tags( $i )
-  sql create table $tb1 using $stb tags( $tbId )
- 
-  $x = 0
-  while $x < $rowNum
-    $xs = $x * $delta
-    $ts = $ts0 + $xs
-    $c = $x / 10
-    $c = $c * 10
-    $c = $x - $c
-    $binary = 'binary . $c
-    $binary = $binary . '
-    $nchar = 'nchar . $c
-    $nchar = $nchar . '
-    sql insert into $tb values ( $ts , $c , $c , $c , $c , $c , $c , true, $binary , $nchar )  $tb1 values ( $ts , $c , NULL , $c , NULL , $c , $c , true, $binary , $nchar )
-    $x = $x + 1
-  endw 
-
-  $i = $i + 1
-endw 
-print ====== tables created
-
-run tsim/parser/limit1_tb.sim
-run tsim/parser/limit1_stb.sim
-
-print ================== restart server to commit data into disk
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
-sleep 500
-system sh/exec.sh -n dnode1 -s start
-print ================== server restart completed
-
-run tsim/parser/limit1_tb.sim
-run tsim/parser/limit1_stb.sim
-
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
diff --git a/tests/script/tsim/parser/limit2.sim b/tests/script/tsim/parser/limit2.sim
index af03c6bb7f..ca308fa6e7 100644
--- a/tests/script/tsim/parser/limit2.sim
+++ b/tests/script/tsim/parser/limit2.sim
@@ -1,10 +1,6 @@
 system sh/stop_dnodes.sh
-
 system sh/deploy.sh -n dnode1 -i 1
-system sh/cfg.sh -n dnode1 -c walLevel -v 1
-system sh/cfg.sh -n dnode1 -c rowsInFileBlock -v 255
 system sh/exec.sh -n dnode1 -s start
-sleep 100
 sql connect
 
 $dbPrefix = lm2_db
@@ -69,10 +65,8 @@ print ====== tables created
 
 print ================== restart server to commit data into disk
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
-sleep 500
+sleep 100
 system sh/exec.sh -n dnode1 -s start
 print ================== server restart completed
 
 run tsim/parser/limit2_query.sim
-
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file
diff --git a/tests/script/tsim/parser/limit2_query.sim b/tests/script/tsim/parser/limit2_query.sim
index c35fd369ca..8a2da7988d 100644
--- a/tests/script/tsim/parser/limit2_query.sim
+++ b/tests/script/tsim/parser/limit2_query.sim
@@ -1,4 +1,3 @@
-sleep 100
 sql connect
 
 $dbPrefix = lm2_db
@@ -24,8 +23,11 @@ sql use $db
 ##### aggregation on stb with 6 tags + where + group by + limit offset
 $val1 = 1
 $val2 = $tbNum - 1
-sql select count(*) from $stb where t1 > $val1 and t1 < $val2 group by t1, t2, t3, t4, t5, t6 order by t1 asc limit 1 offset 0
+print select count(*) from $stb where t1 > $val1 and t1 < $val2 group by t1, t2, t3, t4, t5, t6 order by t1 asc limit 1 offset 0
+sql select count(*), t1, t2, t3, t4, t5, t6 from $stb where t1 > $val1 and t1 < $val2 group by t1, t2, t3, t4, t5, t6 order by t1 asc limit 1 offset 0
 $val = $tbNum - 3
+
+print $rows $val
 if $rows != $val then
   return -1
 endi
diff --git a/tests/script/tsim/parser/limit2_tblocks100.sim b/tests/script/tsim/parser/limit2_tblocks100.sim
deleted file mode 100644
index 0d87a41838..0000000000
--- a/tests/script/tsim/parser/limit2_tblocks100.sim
+++ /dev/null
@@ -1,76 +0,0 @@
-system sh/stop_dnodes.sh
-
-system sh/deploy.sh -n dnode1 -i 1
-system sh/cfg.sh -n dnode1 -c walLevel -v 1
-system sh/cfg.sh -n dnode1 -c rowsInFileBlock -v 255
-system sh/exec.sh -n dnode1 -s start
-sleep 100
-sql connect
-
-$dbPrefix = lm2_db
-$tbPrefix = lm2_tb
-$stbPrefix = lm2_stb
-$tbNum = 10
-$rowNum = 10000
-$totalNum = $tbNum * $rowNum
-$ts0 = 1537146000000
-$delta = 600000
-$tsu = $rowNum * $delta
-$tsu = $tsu - $delta
-$tsu = $tsu + $ts0
-
-print ========== limit2.sim
-$i = 0
-$db = $dbPrefix . $i
-$stb = $stbPrefix . $i
-
-sql drop database $db -x step1
-step1:
-sql create database $db tblocks 100 
-print ====== create tables
-sql use $db
-sql create table $stb (ts timestamp, c1 int, c2 bigint, c3 float, c4 double, c5 smallint, c6 tinyint, c7 bool, c8 binary(10), c9 nchar(10)) tags(t1 int, t2 nchar(20), t3 binary(20), t4 bigint, t5 smallint, t6 double)
-
-$i = 0
-$ts = $ts0
-$halfNum = $tbNum / 2
-while $i < $halfNum
-  $i1 = $i + $halfNum
-  $tb = $tbPrefix . $i
-  $tb1 = $tbPrefix . $i1
-  $tgstr = 'tb . $i
-  $tgstr = $tgstr . '
-  $tgstr1 = 'tb . $i1
-  $tgstr1 = $tgstr1 . '
-  sql create table $tb using $stb tags( $i , $tgstr , $tgstr , $i , $i , $i )
-  sql create table $tb1 using $stb tags( $i1 , $tgstr1 , $tgstr1 , $i , $i , $i )
- 
-  $x = 0
-  while $x < $rowNum
-    $xs = $x * $delta
-    $ts = $ts0 + $xs
-    $c = $x / 10
-    $c = $c * 10
-    $c = $x - $c
-    $binary = 'binary . $c
-    $binary = $binary . '
-    $nchar = 'nchar . $c
-    $nchar = $nchar . '
-    sql insert into $tb values ( $ts , $c , $c , $c , $c , $c , $c , true, $binary , $nchar ) 
-    sql insert into $tb1 values ( $ts , $c , NULL , $c , NULL , $c , $c , true, $binary , $nchar ) 
-    $x = $x + 1
-  endw 
-
-  $i = $i + 1
-endw 
-print ====== tables created
-
-#run tsim/parser/limit2_query.sim
-
-print ================== restart server to commit data into disk
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
-sleep 100
-system sh/exec.sh -n dnode1 -s start
-print ================== server restart completed
-
-run tsim/parser/limit2_query.sim
diff --git a/tests/script/tsim/parser/limit_stb.sim b/tests/script/tsim/parser/limit_stb.sim
index ec7c0e0f13..a3064d59e9 100644
--- a/tests/script/tsim/parser/limit_stb.sim
+++ b/tests/script/tsim/parser/limit_stb.sim
@@ -1,4 +1,3 @@
-sleep 100
 sql connect
 
 $dbPrefix = lm_db
diff --git a/tests/script/tsim/parser/limit_tb.sim b/tests/script/tsim/parser/limit_tb.sim
index 4a93797d40..d0d14c5bfc 100644
--- a/tests/script/tsim/parser/limit_tb.sim
+++ b/tests/script/tsim/parser/limit_tb.sim
@@ -1,4 +1,3 @@
-sleep 100
 sql connect
 
 $dbPrefix = lm_db
diff --git a/tests/script/tsim/parser/line_insert.sim b/tests/script/tsim/parser/line_insert.sim
index cbd960bed6..fc522ecaa7 100644
--- a/tests/script/tsim/parser/line_insert.sim
+++ b/tests/script/tsim/parser/line_insert.sim
@@ -43,7 +43,7 @@ endi
 #print =============== clear
 sql drop database $db
 sql show databases
-if $rows != 0 then 
+if $rows != 2 then 
   return -1
 endi
 
diff --git a/tests/script/tsim/parser/nestquery.sim b/tests/script/tsim/parser/nestquery.sim
index c82718c1cb..82d39eff8e 100644
--- a/tests/script/tsim/parser/nestquery.sim
+++ b/tests/script/tsim/parser/nestquery.sim
@@ -53,8 +53,6 @@ while $i < $half
   $i = $i + 1
 endw
 
-sleep 100
-
 $i = 1
 $tb = $tbPrefix . $i
 
@@ -63,7 +61,6 @@ sql select count(*) from (select count(*) from nest_mt0)
 if $rows != 1 then
  return -1
 endi
-
 if $data00 != 1 then
   return -1
 endi
@@ -72,35 +69,31 @@ sql select count(*) from (select count(*) from nest_mt0 group by tbname)
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 10 then
   return -1
 endi
 
-sql select count(*) from (select count(*) from nest_mt0 interval(10h) group by tbname)
+sql select count(*) from (select count(*) from nest_mt0 partition by tbname interval(10h) )
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 170 then
   return -1
 endi
 
-sql select sum(a) from (select count(*) a from nest_mt0 interval(10h) group by tbname)
+sql select sum(a) from (select count(*) a from nest_mt0 partition by tbname interval(10h))
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 100000 then
   return -1
 endi
 
 print =================> alias name test
-sql select ts from (select count(*) a from nest_tb0 interval(1h))
+sql select ts from (select _wstart as ts, count(*) a from nest_tb0 interval(1h))
 if $rows != 167 then
   return -1
 endi
-
 if $data00 != @20-09-15 00:00:00.000@ then
   return -1
 endi
@@ -109,7 +102,6 @@ sql select count(a) from (select count(*) a from nest_tb0 interval(1h))
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 167 then
    return -1
 endi
@@ -125,19 +117,16 @@ if $rows != 0 then
   return -1
 endi
 
-sql select * from (select count(*) a, tbname f1 from nest_mt0 group by tbname) t where t.a>0 and f1 = 'nest_tb0';
+sql select * from (select count(*) a, tbname f1, tbname from nest_mt0 group by tbname) t where t.a>0 and f1 = 'nest_tb0';
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 10000 then
   return -1
 endi
-
 if $data01 != @nest_tb0@ then
   return -1
 endi
-
 if $data02 != @nest_tb0@ then
   return -1
 endi
@@ -145,37 +134,30 @@ endi
 print ===================> nest query interval
 sql_error select ts, avg(c1) from (select ts, c1 from nest_tb0);
 
-sql select avg(c1) from (select * from nest_tb0) interval(3d)
+sql select _wstart, avg(c1) from (select * from nest_tb0) interval(3d)
 if $rows != 3 then
   return -1
 endi
-
 if $data00 != @20-09-14 00:00:00.000@  then
   return -1
 endi
-
 if $data01 != 49.222222222 then
   return -1
 endi
-
 if $data10 != @20-09-17 00:00:00.000@  then
-  print expect 20-09-17 00:00:00.000, actual: $data10
   return -1
 endi
-
-if $data11 != 49.685185185 then
+if $data11 != 49.581325301 then
   return -1
 endi
-
 if $data20 != @20-09-20 00:00:00.000@  then
   return -1
 endi
-
-if $data21 != 49.500000000 then
+if $data21 != 49.703539823 then
   return -1
 endi
 
-sql_error select stddev(c1) from (select c1 from nest_tb0);
+sql select stddev(c1) from (select c1 from nest_tb0);
 sql_error select percentile(c1, 20) from (select * from nest_tb0);
 sql_error select interp(c1) from (select * from nest_tb0);
 sql_error select derivative(val, 1s, 0) from (select c1 val from nest_tb0);
@@ -184,39 +166,31 @@ sql_error select irate(c1) from (select c1 from nest_tb0);
 sql_error select diff(c1), twa(c1) from (select * from nest_tb0);
 sql_error select irate(c1), interp(c1), twa(c1) from (select * from nest_tb0);
 
-sql select apercentile(c1, 50) from (select * from nest_tb0) interval(1d)
+sql select _wstart, apercentile(c1, 50) from (select * from nest_tb0) interval(1d)
 if $rows != 7 then
   return -1
 endi
-
 if $data00 != @20-09-15 00:00:00.000@ then
   return -1
 endi
-
 if $data01 != 47.571428571 then
   return -1
 endi
-
 if $data10 != @20-09-16 00:00:00.000@ then
   return -1
 endi
-
 if $data11 != 49.666666667 then
   return -1
 endi
-
 if $data20 != @20-09-17 00:00:00.000@ then
   return -1
 endi
-
 if $data21 != 49.000000000 then
   return -1
 endi
-
 if $data30 != @20-09-18 00:00:00.000@ then
   return -1
 endi
-
 if $data31 != 48.333333333 then
   return -1
 endi
@@ -225,7 +199,6 @@ sql select twa(c1) from (select * from nest_tb0);
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 49.500000000 then
   return -1
 endi
@@ -234,7 +207,6 @@ sql select leastsquares(c1, 1, 1) from (select * from nest_tb0);
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != @{slop:0.000100, intercept:49.000000}@ then
   return -1
 endi
@@ -248,19 +220,15 @@ sql select derivative(c1, 1s, 0) from (select * from nest_tb0);
 if $rows != 9999 then
   return -1
 endi
-
 if $data00 != @20-09-15 00:01:00.000@ then
   return -1
 endi
-
 if $data01 != 0.016666667 then
   return -1
 endi
-
 if $data10 != @20-09-15 00:02:00.000@ then
   return -1
 endi
-
 if $data11 != 0.016666667 then
   return -1
 endi
@@ -274,54 +242,42 @@ sql select avg(c1),sum(c2), max(c3), min(c4), count(*), first(c7), last(c7),spre
 if $rows != 7 then
   return -1
 endi
-
 if $data00 != @20-09-15 00:00:00.000@ then
   return -1
 endi
-
 if $data01 != 48.666666667 then
   print expect 48.666666667, actual: $data01
   return -1
 endi
-
 if $data02 != 70080.000000000 then
   return -1
 endi
-
 if $data03 != 99 then
   return -1
 endi
-
 if $data04 != 0 then
   return -1
 endi
-
 if $data05 != 1440 then
   return -1
 endi
-
 if $data06 != 0 then
   print $data06
   return -1
 endi
-
 if $data07 != 1 then
   return -1
 endi
-
 if $data08 != 99.000000000 then
   print expect 99.000000000, actual: $data08
   return -1
 endi
-
 if $data10 != @20-09-16 00:00:00.000@ then
   return -1
 endi
-
 if $data11 != 49.777777778 then
   return -1
 endi
-
 if $data12 != 71680.000000000 then
   return -1
 endi
@@ -332,39 +288,28 @@ sql select bottom(x, 20) from (select c1 x from nest_tb0)
 
 print ===================> group by + having
 
-
-
 print =========================> ascending order/descending order
 
-
-
-
 print =========================> nest query join
 sql select a.ts,a.k,b.ts from (select count(*) k from nest_tb0 interval(30a)) a, (select count(*) f from nest_tb1 interval(30a)) b where a.ts = b.ts ;
 if $rows != 10000 then
   return -1
 endi
-
 if $data00 != @20-09-15 00:00:00.000@ then
   return -1
 endi
-
 if $data01 != 1 then
   return -1
 endi
-
 if $data02 != @20-09-15 00:00:00.000@ then
   return -1
 endi
-
 if $data10 != @20-09-15 00:01:00.000@ then
   return -1
 endi
-
 if $data11 != 1 then
   return -1
 endi
-
 if $data12 != @20-09-15 00:01:00.000@ then
   return -1
 endi
@@ -373,11 +318,9 @@ sql select sum(a.k), sum(b.f) from (select count(*) k from nest_tb0 interval(30a
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 10000 then
   return -1
 endi
-
 if $data01 != 10000 then
   return -1
 endi
@@ -386,19 +329,15 @@ sql select a.ts,a.k,b.ts,c.ts,c.ts,c.x from (select count(*) k from nest_tb0 int
 if $rows != 10000 then
   return -1
 endi
-
 if $data00 != @20-09-15 00:00:00.000@ then
   return -1
 endi
-
 if $data01 != 1 then
   return -1
 endi
-
 if $data02 != @20-09-15 00:00:00.000@ then
   return -1
 endi
-
 if $data03 != @20-09-15 00:00:00.000@ then
   return -1
 endi
@@ -407,11 +346,9 @@ sql select diff(val) from (select c1 val from nest_tb0);
 if $rows != 9999 then
   return -1
 endi
-
 if $data00 != @70-01-01 08:00:00.000@ then
   return -1
 endi
-
 if $data01 != 1 then
   return -1
 endi
@@ -425,19 +362,15 @@ sql select count(*),c1 from (select * from nest_tb0) where c1 < 2 group by c1;
 if $rows != 2 then
   return -1
 endi
-
 if $data00 != 100 then
   return -1
 endi
-
 if $data01 != 0 then
   return -1
 endi
-
 if $data10 != 100 then
   return -1
 endi
-
 if $data11 != 1 then
   return -1
 endi
@@ -447,11 +380,9 @@ sql select twa(c1) from nest_tb1 interval(19a);
 if $rows != 10000 then
   return -1
 endi
-
 if $data00 != @20-09-14 23:59:59.992@ then
   return -1
 endi
-
 if $data01 != 0.000083333 then
   return -1
 endi
@@ -461,19 +392,15 @@ sql select min(val),max(val),first(val),last(val),count(val),sum(val),avg(val) f
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 10000 then
   return -1
 endi
-
 if $data01 != 10000 then
   return -1
 endi
-
 if $data04 != 10 then
   return -1
 endi
-
 if $data05 != 100000 then
   return -1
 endi
@@ -487,19 +414,15 @@ sql select avg(k) from (select avg(k) k from t1 interval(1s)) interval(1m);
 if $rows != 2 then
   return -1
 endi
-
 if $data00 != @20-01-01 01:01:00.000000@ then
   return -1
 endi
-
 if $data01 != 1.000000000 then
   return -1
 endi
-
 if $data10 != @20-01-01 01:02:00.000000@ then
   return -1
 endi
-
 if $data11 != 2.000000000 then
   return -1
 endi
diff --git a/tests/script/tsim/parser/union.sim b/tests/script/tsim/parser/union.sim
index 4d05d4ced7..95150616d1 100644
--- a/tests/script/tsim/parser/union.sim
+++ b/tests/script/tsim/parser/union.sim
@@ -102,11 +102,11 @@ $i = 1
 $tb = $tbPrefix . $i
 
 ## column type not identical
-sql_error select count(*) as a from union_mt0 union all select avg(c1) as a from union_mt0
-sql_error select count(*) as a from union_mt0 union all select spread(c1) as a from union_mt0;
+sql select count(*) as a from union_mt0 union all select avg(c1) as a from union_mt0
+sql select count(*) as a from union_mt0 union all select spread(c1) as a from union_mt0;
 
 ## union not supported
-sql_error (select count(*) from union_mt0) union (select count(*) from union_mt0);
+sql (select count(*) from union_mt0) union (select count(*) from union_mt0);
 
 ## column type not identical
 sql_error select c1 from union_mt0 limit 10 union all select c2 from union_tb1 limit 20;
@@ -123,145 +123,114 @@ sql (((select c1 from union_tb0)))
 if $rows != 10000 then
   return -1
 endi
-
 if $data00 != 0 then
   return -1
 endi
-
 if $data10 != 1 then
   return -1
 endi
 
-sql select 'ab' as options from union_tb1 limit 1 union all select 'dd' as options from union_tb0 limit 1;
+sql (select 'ab' as options from union_tb1 limit 1) union all (select 'dd' as options from union_tb0 limit 1) order by options;
 if $rows != 2 then
   return -1
 endi
-
 if $data00 != @ab@ then
   return -1
 endi
-
 if $data10 != @dd@ then
   return -1
 endi
 
-
-sql select 'ab' as options from union_tb1 limit 1 union all select '1234567' as options from union_tb0 limit 1;
+sql (select 'ab12345' as options from union_tb1 limit 1) union all (select '1234567' as options from union_tb0 limit 1) order by options desc;
 if $rows != 2 then
   return -1
 endi
-
-if $data00 != @ab@ then
+if $data00 != @ab12345@ then
   return -1
 endi
-
 if $data10 != @1234567@ then
   return -1
 endi
 
-
 # mixed order
-sql select ts, c1 from union_tb1 order by ts asc limit 10 union all select ts, c1 from union_tb0 order by ts desc limit 2 union all select ts, c1 from union_tb2 order by ts asc limit 10
+sql (select ts, c1 from union_tb1 order by ts asc limit 10) union all (select ts, c1 from union_tb0 order by ts desc limit 2) union all (select ts, c1 from union_tb2 order by ts asc limit 10) order by ts
 if $rows != 22 then
   return -1
 endi
-
 if $data00 != @20-01-05 13:51:24.000@ then
   return -1
 endi
-
 if $data01 != 0 then
   return -1
 endi
-
-if $data10 != @20-01-05 13:52:24.000@ then
+if $data10 != @20-01-05 13:51:24.000@ then
   return -1
 endi
-
-if $data11 != 1 then
+if $data11 != 0 then
   return -1
 endi
-
-if $data90 != @20-01-05 14:00:24.000@ then
+print $data90 $data91
+if $data90 != @20-01-05 13:55:24.000@ then
   return -1
 endi
-
-if $data91 != 9 then
+if $data91 != 4 then
   return -1
 endi
 
 # different sort order
 
 # super table & normal table mixed up
-sql select c3 from union_tb0 limit 2 union all select sum(c1) as c3 from union_mt0;
+sql (select c3 from union_tb0 limit 2) union all (select sum(c1) as c3 from union_mt0) order by c3;
 if $rows != 3 then
   return -1
 endi
-
 if $data00 != 0 then
   return -1
 endi
-
 if $data10 != 1 then
   return -1
 endi
-
 if $data20 != 4950000 then
   return -1
 endi
 
 # type compatible
-sql select c3 from union_tb0 limit 2 union all select sum(c1) as c3 from union_tb1;
+sql (select c3 from union_tb0 limit 2) union all (select sum(c1) as c3 from union_tb1) order by c3;
 if $rows != 3 then
  return -1
 endi
-
 if $data00 != 0 then
    return -1
 endi
-
 if $data10 != 1 then
   return -1
 endi
-
 if $data20 != 495000 then
   return -1
 endi
 
 # two join subclause
-sql select count(*) as c from union_tb0, union_tb1 where union_tb0.ts=union_tb1.ts union all select union_tb0.c3 as c from union_tb0, union_tb1 where union_tb0.ts=union_tb1.ts limit 10
+sql (select count(*) as c from union_tb0, union_tb1 where union_tb0.ts=union_tb1.ts) union all (select union_tb0.c3 as c from union_tb0, union_tb1 where union_tb0.ts=union_tb1.ts limit 10) order by c desc
 if $rows != 11 then
   return -1
 endi
-
 if $data00 != 10000 then
   return -1
 endi
-
-if $data10 != 0 then
+if $data10 != 9 then
   return -1
 endi
-
-if $data20 != 1 then
+if $data20 != 8 then
   return -1
 endi
-
-if $data90 != 8 then
+if $data90 != 1 then
  return -1
 endi
 
 print ===========================================tags union
 # two super table tag union, limit is not active during retrieve tags query
-sql select t1 from union_mt0 union all select t1 from union_mt0
-if $rows != 20 then
-  return -1
-endi
-
-if $data00 != 0 then
-  return -1
-endi
-
-if $data90 != 9 then
+sql (select t1 from union_mt0) union all (select t1 from union_mt0)
+if $rows != 200000 then
   return -1
 endi
 
@@ -271,39 +240,35 @@ endi
 #endi
 #========================================== two super table join subclause
 print ================two super table join subclause
-sql select avg(union_mt0.c1) as c from union_mt0 interval(1h) limit 10 union all select union_mt1.ts, union_mt1.c1/1.0 as c from union_mt0, union_mt1 where union_mt1.ts=union_mt0.ts and union_mt1.t1=union_mt0.t1 limit 5;
+sql (select _wstart as ts, avg(union_mt0.c1) as c from union_mt0 interval(1h) limit 10) union all (select union_mt1.ts, union_mt1.c1/1.0 as c from union_mt0, union_mt1 where union_mt1.ts=union_mt0.ts and union_mt1.t1=union_mt0.t1 limit 5);
 print the rows value is: $rows
-
 if $rows != 15 then
   return -1
 endi
 
 # first subclause are empty
-sql select count(*) as c from union_tb0 where ts > now + 3650d union all select sum(c1) as c from union_tb1;
+sql (select count(*) as c from union_tb0 where ts > now + 3650d) union all (select sum(c1) as c from union_tb1);
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != 495000 then
   return -1
 endi
 
 # all subclause are empty
-sql select c1 from union_tb0 limit 0 union all select c1 from union_tb1 where ts>'2021-1-1 0:0:0'
+sql (select c1 from union_tb0 limit 0) union all (select c1 from union_tb1 where ts>'2021-1-1 0:0:0')
 if $rows != 0 then
   return -1
 endi
 
 # middle subclause empty
-sql select c1 from union_tb0 limit 1 union all select c1 from union_tb1 where ts>'2030-1-1 0:0:0' union all select last(c1) as c1 from union_tb1;
+sql (select c1 from union_tb0 limit 1) union all (select c1 from union_tb1 where ts>'2030-1-1 0:0:0' union all select last(c1) as c1 from union_tb1) order by c1;
 if $rows != 2 then
   return -1
 endi
-
 if $data00 != 0 then
   return -1
 endi
-
 if $data10 != 99 then
   return -1
 endi
@@ -319,141 +284,90 @@ sql (select ts, c1 from union_mt0 limit 1) union all (select ts, c1 from union_m
 if $rows != 2 then
   return -1
 endi
-
 if $data00 != @20-01-05 13:51:24.000@ then
   return -1
 endi
-
 if $data01 != 0 then
   return -1
 endi
-
 if $data10 != @20-01-05 13:51:24.000@ then
   return -1
 endi
-
 if $data11 != 0 then
   return -1
 endi
 
 # two aggregated functions for super tables
-sql select sum(c1) as a from union_mt0 interval(1s) limit 9 union all select ts, max(c3) as a from union_mt0 limit 2;
+sql (select _wstart as ts, sum(c1) as a from union_mt0 interval(1s) limit 9) union all (select ts, max(c3) as a from union_mt0 limit 2) order by ts;
 if $rows != 10 then
   return -1
 endi
-
 if $data00 != @20-01-05 13:51:24.000@ then
   return -1
 endi
-
 if $data01 != 0 then
   return -1
 endi
-
 if $data10 != @20-01-05 13:52:24.000@ then
   return -1
 endi
-
 if $data11 != 10 then
   return -1
 endi
-
 if $data20 != @20-01-05 13:53:24.000@ then
   return -1
 endi
-
 if $data21 != 20 then
   return -1
 endi
-
 if $data90 != @20-01-05 15:30:24.000@ then
   return -1
 endi
-
 if $data91 != 99 then
   return -1
 endi
 
 #=================================================================================================
 # two aggregated functions for normal tables
-sql select sum(c1) as a from union_tb0 limit 1 union all select sum(c3) as a from union_tb1 limit 2;
+sql (select sum(c1) as a from union_tb0 limit 1) union all (select sum(c3) as a from union_tb1 limit 2);
 if $rows != 2 then
   return -1
 endi
-
 if $data00 != 495000 then
   return -1
 endi
-
 if $data10 != 495000 then
   return -1
 endi
 
 # two super table query + interval + limit
-sql select ts, first(c3) as a from union_mt0 limit 1 union all select sum(c3) as a from union_mt0 interval(1h) limit 1;
+sql (select ts, first(c3) as a from union_mt0 limit 1) union all (select _wstart as ts, sum(c3) as a from union_mt0 interval(1h) limit 1) order by ts desc;
 if $rows != 2 then
   return -1
 endi
-
 if $data00 != @20-01-05 13:51:24.000@ then
  return -1
 endi
-
 if $data01 != 0 then
   return -1
 endi
-
 if $data10 != @20-01-05 13:00:00.000@ then
  return -1
 endi
-
 if $data11 != 360 then
   return -1
 endi
 
-sql select server_status() union all select server_status()
-if $rows != 2 then
-  return -1
-endi
-
-if $data00 != 1 then
-  return -1
-endi
-
-if $data10 != 1 then
-  return -1
-endi
-
-sql select client_version() union all select server_version()
-if $rows != 2 then
-  return -1
-endi
-
-sql select database() union all select database()
-if $rows != 2 then
-  return -1
-endi
-
-if $data00 != @union_db0@ then
-  return -1
-endi
-
-if $data10 != @union_db0@ then
-  return -1
-endi
-
-sql select 'aaa' as option from union_tb1 where c1 < 0 limit 1 union all select 'bbb' as option from union_tb0 limit 1
+sql (select 'aaa' as option from union_tb1 where c1 < 0 limit 1) union all (select 'bbb' as option from union_tb0 limit 1)
 if $rows != 1 then
   return -1
 endi
-
 if $data00 != @bbb@ then
   return -1
 endi
 
-
-sql_error show tables union all show tables
-sql_error show stables union all show stables
-sql_error show databases union all show databases
+sql_error (show tables) union all (show tables)
+sql_error (show stables) union all (show stables)
+sql_error (show databases) union all (show databases)
 
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
diff --git a/tests/script/tsim/parser/union_sysinfo.sim b/tests/script/tsim/parser/union_sysinfo.sim
new file mode 100644
index 0000000000..ea45dc68e1
--- /dev/null
+++ b/tests/script/tsim/parser/union_sysinfo.sim
@@ -0,0 +1,35 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sql connect
+
+sql (select server_status()) union all (select server_status())
+if $rows != 2 then
+  return -1
+endi
+
+if $data00 != 1 then
+  return -1
+endi
+
+if $data10 != 1 then
+  return -1
+endi
+
+sql (select client_version()) union all (select server_version())
+if $rows != 2 then
+  return -1
+endi
+
+sql (select database()) union all (select database())
+if $rows != 2 then
+  return -1
+endi
+if $data00 != @union_db0@ then
+  return -1
+endi
+if $data10 != @union_db0@ then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT