diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index 6cc25d7284970a50ffd83248a835759ad835b915..6ecc8164428477e1e4954d6d09cf4d9c991f3fcd 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -92,6 +92,8 @@
 #./test.sh -f tsim/stable/show.sim
 ./test.sh -f tsim/stable/values.sim
 ./test.sh -f tsim/stable/vnode3.sim
+./test.sh -f tsim/stable/column_add.sim
+./test.sh -f tsim/stable/column_drop.sim
 
 
 # --- for multi process mode
diff --git a/tests/script/tsim/stable/add_column.sim b/tests/script/tsim/stable/add_column.sim
deleted file mode 100644
index 0a96a7a7d15155c83ac3086db84d47cca0e008bc..0000000000000000000000000000000000000000
--- a/tests/script/tsim/stable/add_column.sim
+++ /dev/null
@@ -1,141 +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
-
-print ========== prepare stb and ctb
-sql create database db vgroups 1
-sql create table db.stb (ts timestamp, c1 int, c2 binary(4)) tags(t1 int, t2 float, t3 binary(16)) comment "abd"
-sql create table db.ctb using db.stb tags(101, 102, "103")
-sql insert into db.ctb values(now, 1, "2")
-
-sql show db.stables
-if $rows != 1 then
-  return -1
-endi
-if $data[0][0] != stb then
-  return -1
-endi
-if $data[0][1] != db then
-  return -1
-endi
-if $data[0][3] != 3 then
-  return -1
-endi
-if $data[0][4] != 3 then
-  return -1
-endi
-if $data[0][6] != abd then
-  return -1
-endi
-
-sql show db.tables
-if $rows != 1 then
-  return -1
-endi
-if $data[0][0] != ctb then
-  return -1
-endi
-if $data[0][1] != db then
-  return -1
-endi
-if $data[0][3] != 3 then
-  return -1
-endi
-if $data[0][4] != stb then
-  return -1
-endi
-if $data[0][6] != 2 then
-  return -1
-endi
-if $data[0][9] != CHILD_TABLE then
-  return -1
-endi
-
-sql select * from db.stb
-if $rows != 1 then
-  return -1
-endi
-if $data[0][1] != 1 then
-  return -1
-endi
-if $data[0][2] != 2 then
-  return -1
-endi
-if $data[0][3] != 101 then
-  return -1
-endi
-
-print ========== add column c3
-sql alter table db.stb add column c3 int
-sql show db.stables
-if $data[0][3] != 4 then
-  return -1
-endi
-
-sql show db.tables
-if $data[0][3] != 4 then
-  return -1
-endi
-
-sql select * from db.stb
-sql select * from db.stb
-print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
-if $rows != 1 then
-  return -1
-endi
-if $data[0][1] != 1 then
-  return -1
-endi
-if $data[0][2] != 2 then
-  return -1
-endi
-if $data[0][3] != NULL then
-  return -1
-endi
-if $data[0][4] != 101 then
-  return -1
-endi
-
-sql insert into db.ctb values(now+1s, 1, 2, 3)
-sql select * from db.stb
-print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
-print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
-
-if $rows != 2 then
-  return -1
-endi
-if $data[0][1] != 1 then
-  return -1
-endi
-if $data[0][2] != 2 then
-  return -1
-endi  
-if $data[0][3] != NULL then
-  return -1
-endi
-if $data[0][4] != 101 then
-  return -1
-endi
-if $data[1][1] != 1 then
-  return -1
-endi
-if $data[1][2] != 2 then
-  return -1
-endi
-if $data[1][3] != 3 then
-  return -1
-endi
-if $data[1][4] != 101 then
-  return -1
-endi
-
-print ========== add column c4
-sql alter table db.stb add column c4 bigint
-sql insert into db.ctb values(now+2s, 1, 2, 3, 4)
-sql select * from db.stb
-sql select * from db.stb
-print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
-print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
-print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
-
diff --git a/tests/script/tsim/stable/column_add.sim b/tests/script/tsim/stable/column_add.sim
new file mode 100644
index 0000000000000000000000000000000000000000..a5d9b48508baa78e7266a9af7d1473b192643041
--- /dev/null
+++ b/tests/script/tsim/stable/column_add.sim
@@ -0,0 +1,303 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sql connect
+
+print ========== prepare stb and ctb
+sql create database db vgroups 1
+sql create table db.stb (ts timestamp, c1 int, c2 binary(4)) tags(t1 int, t2 float, t3 binary(16)) comment "abd"
+sql create table db.ctb using db.stb tags(101, 102, "103")
+sql insert into db.ctb values(now, 1, "2")
+
+sql show db.stables
+if $rows != 1 then
+  return -1
+endi
+if $data[0][0] != stb then
+  return -1
+endi
+if $data[0][1] != db then
+  return -1
+endi
+if $data[0][3] != 3 then
+  return -1
+endi
+if $data[0][4] != 3 then
+  return -1
+endi
+if $data[0][6] != abd then
+  return -1
+endi
+
+sql show db.tables
+if $rows != 1 then
+  return -1
+endi
+if $data[0][0] != ctb then
+  return -1
+endi
+if $data[0][1] != db then
+  return -1
+endi
+if $data[0][3] != 3 then
+  return -1
+endi
+if $data[0][4] != stb then
+  return -1
+endi
+if $data[0][6] != 2 then
+  return -1
+endi
+if $data[0][9] != CHILD_TABLE then
+  return -1
+endi
+
+sql select * from db.stb
+if $rows != 1 then
+  return -1
+endi
+if $data[0][1] != 1 then
+  return -1
+endi
+if $data[0][2] != 2 then
+  return -1
+endi
+if $data[0][3] != 101 then
+  return -1
+endi
+
+sql_error alter table db.stb add column ts int
+sql_error alter table db.stb add column t1 int
+sql_error alter table db.stb add column t2 int
+sql_error alter table db.stb add column t3 int
+sql_error alter table db.stb add column c1 int
+
+print ========== step1 add column c3
+sql alter table db.stb add column c3 int
+sql show db.stables
+if $data[0][3] != 4 then
+  return -1
+endi
+
+sql show db.tables
+if $data[0][3] != 4 then
+  return -1
+endi
+
+sql select * from db.stb
+sql select * from db.stb
+print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
+if $rows != 1 then
+  return -1
+endi
+if $data[0][1] != 1 then
+  return -1
+endi
+if $data[0][2] != 2 then
+  return -1
+endi
+if $data[0][3] != NULL then
+  return -1
+endi
+if $data[0][4] != 101 then
+  return -1
+endi
+
+sql insert into db.ctb values(now+1s, 1, 2, 3)
+sql select * from db.stb
+print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
+print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
+
+if $rows != 2 then
+  return -1
+endi
+if $data[0][1] != 1 then
+  return -1
+endi
+if $data[0][2] != 2 then
+  return -1
+endi  
+if $data[0][3] != NULL then
+  return -1
+endi
+if $data[0][4] != 101 then
+  return -1
+endi
+if $data[1][1] != 1 then
+  return -1
+endi
+if $data[1][2] != 2 then
+  return -1
+endi
+if $data[1][3] != 3 then
+  return -1
+endi
+if $data[1][4] != 101 then
+  return -1
+endi
+
+print ========== step2 add column c4
+sql alter table db.stb add column c4 bigint
+sql select * from db.stb
+sql insert into db.ctb values(now+2s, 1, 2, 3, 4)
+sql select * from db.stb
+print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
+print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
+print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
+
+if $rows != 3 then
+  return -1
+endi
+if $data[0][1] != 1 then
+  return -1
+endi
+if $data[0][2] != 2 then
+  return -1
+endi  
+if $data[0][3] != NULL then
+  return -1
+endi
+if $data[0][4] != NULL then
+  return -1
+endi
+if $data[0][5] != 101 then
+  return -1
+endi
+if $data[1][1] != 1 then
+  return -1
+endi
+if $data[1][2] != 2 then
+  return -1
+endi
+if $data[1][3] != 3 then
+  return -1
+endi
+if $data[1][4] != NULL then
+  return -1
+endi
+if $data[1][5] != 101 then
+  return -1
+endi
+if $data[2][1] != 1 then
+  return -1
+endi
+if $data[2][2] != 2 then
+  return -1
+endi
+if $data[2][3] != 3 then
+  return -1
+endi
+if $data[2][4] != 4 then
+  return -1
+endi
+if $data[2][5] != 101 then
+  return -1
+endi
+
+print ========== step3 add column c5
+sql alter table db.stb add column c5 int
+sql insert into db.ctb values(now+3s, 1, 2, 3, 4, 5)
+sql select * from db.stb
+print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
+print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
+print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
+print $data[2][0] $data[2][1] $data[2][2] $data[2][3] $data[2][4] $data[2][5] $data[2][6]
+
+if $rows != 4 then
+  return -1
+endi
+if $data[2][1] != 1 then
+  return -1
+endi
+if $data[2][2] != 2 then
+  return -1
+endi
+if $data[2][3] != 3 then
+  return -1
+endi
+if $data[2][4] != 4 then
+  return -1
+endi
+if $data[2][5] != NULL then
+  return -1
+endi
+if $data[2][6] != 101 then
+  return -1
+endi
+if $data[3][1] != 1 then
+  return -1
+endi
+if $data[3][2] != 2 then
+  return -1
+endi
+if $data[3][3] != 3 then
+  return -1
+endi
+if $data[3][4] != 4 then
+  return -1
+endi
+if $data[3][5] != 5 then
+  return -1
+endi
+if $data[3][6] != 101 then
+  return -1
+endi
+
+print ========== step4 add column c6
+sql alter table db.stb add column c6 int
+sql insert into db.ctb values(now+4s, 1, 2, 3, 4, 5, 6)
+sql select * from db.stb
+
+if $rows != 5 then
+  return -1
+endi
+if $data[3][1] != 1 then
+  return -1
+endi
+if $data[3][2] != 2 then
+  return -1
+endi
+if $data[3][3] != 3 then
+  return -1
+endi
+if $data[3][4] != 4 then
+  return -1
+endi
+if $data[3][5] != 5 then
+  return -1
+endi
+if $data[3][6] != NULL then
+  return -1
+endi
+if $data[3][7] != 101 then
+  return -1
+endi
+if $data[4][1] != 1 then
+  return -1
+endi
+if $data[4][2] != 2 then
+  return -1
+endi
+if $data[4][3] != 3 then
+  return -1
+endi
+if $data[4][4] != 4 then
+  return -1
+endi
+if $data[4][5] != 5 then
+  return -1
+endi
+if $data[4][6] != 6 then
+  return -1
+endi
+if $data[4][7] != 101 then
+  return -1
+endi
+
+print ========== step5 describe
+sql describe db.ctb
+if $rows != 10 then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file
diff --git a/tests/script/tsim/stable/column_drop.sim b/tests/script/tsim/stable/column_drop.sim
new file mode 100644
index 0000000000000000000000000000000000000000..af84a3ecac28da9f6dbf41d08af707d1aa6226a4
--- /dev/null
+++ b/tests/script/tsim/stable/column_drop.sim
@@ -0,0 +1,209 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sql connect
+
+print ========== prepare stb and ctb
+sql create database db vgroups 1
+sql create table db.stb (ts timestamp, c1 int, c2 binary(4), c3 int, c4 bigint, c5 int, c6 int) tags(t1 int, t2 float, t3 binary(16)) comment "abd"
+sql create table db.ctb using db.stb tags(101, 102, "103")
+sql insert into db.ctb values(now, 1, "2", 3, 4, 5, 6)
+
+sql show db.stables
+if $rows != 1 then
+  return -1
+endi
+if $data[0][0] != stb then
+  return -1
+endi
+if $data[0][1] != db then
+  return -1
+endi
+if $data[0][3] != 7 then
+  return -1
+endi
+if $data[0][4] != 3 then
+  return -1
+endi
+if $data[0][6] != abd then
+  return -1
+endi
+
+sql show db.tables
+if $rows != 1 then
+  return -1
+endi
+if $data[0][0] != ctb then
+  return -1
+endi
+if $data[0][1] != db then
+  return -1
+endi
+if $data[0][3] != 7 then
+  return -1
+endi
+if $data[0][4] != stb then
+  return -1
+endi
+if $data[0][6] != 2 then
+  return -1
+endi
+if $data[0][9] != CHILD_TABLE then
+  return -1
+endi
+
+sql select * from db.stb
+if $rows != 1 then
+  return -1
+endi
+if $data[0][1] != 1 then
+  return -1
+endi
+if $data[0][2] != 2 then
+  return -1
+endi
+if $data[0][3] != 3 then
+  return -1
+endi
+if $data[0][4] != 4 then
+  return -1
+endi
+if $data[0][5] != 5 then
+  return -1
+endi
+if $data[0][6] != 6 then
+  return -1
+endi
+if $data[0][7] != 101 then
+  return -1
+endi
+
+sql_error alter table db.stb drop column ts
+sql_error alter table db.stb drop column t1
+sql_error alter table db.stb drop column t2
+sql_error alter table db.stb drop column t3
+sql_error alter table db.stb drop column c9
+
+print ========== step1 drop column c6
+sql alter table db.stb drop column c6
+sql show db.stables
+if $data[0][3] != 6 then
+  return -1
+endi
+
+sql show db.tables
+if $data[0][3] != 6 then
+  return -1
+endi
+
+sql select * from db.stb
+sql select * from db.stb
+print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
+if $rows != 1 then
+  return -1
+endi
+if $data[0][1] != 1 then
+  return -1
+endi
+if $data[0][2] != 2 then
+  return -1
+endi
+if $data[0][3] != 3 then
+  return -1
+endi
+if $data[0][4] != 4 then
+  return -1
+endi
+if $data[0][5] != 5 then
+  return -1
+endi
+if $data[0][6] != 101 then
+  return -1
+endi
+
+sql insert into db.ctb values(now+1s, 1, 2, 3, 4, 5)
+sql select * from db.stb
+if $rows != 2 then
+  return -1
+endi
+
+print ========== step2 drop column c5
+sql alter table db.stb drop column c5
+sql insert into db.ctb values(now+2s, 1, 2, 3, 4, 5)
+sql insert into db.ctb values(now+3s, 1, 2, 3, 4)
+sql_error insert into db.ctb values(now+2s, 1, 2, 3, 4, 5)
+
+sql select * from db.stb
+if $rows != 4 then
+  return -1
+endi
+
+print ========== step3 drop column c4
+sql alter table db.stb drop column c4
+sql select * from db.stb
+sql_error insert into db.ctb values(now+2s, 1, 2, 3, 4, 5)
+sql_error insert into db.ctb values(now+2s, 1, 2, 3, 4)
+sql insert into db.ctb values(now+3s, 1, 2, 3)
+
+sql select * from db.stb
+if $rows != 5 then
+  return -1
+endi
+
+print ========== step4 add column c4
+sql alter table db.stb add column c4 binary(13)
+sql insert into db.ctb values(now+4s, 1, 2, 3, '4')
+sql select * from db.stb
+if $rows != 6 then
+  return -1
+endi
+if $data[1][4] != NULL then
+  return -1
+endi
+if $data[2][4] != NULL then
+  return -1
+endi
+if $data[3][4] != NULL then
+  return -1
+endi
+if $data[5][4] != 4 then
+  return -1
+endi
+
+print ========== step5 describe
+sql describe db.ctb
+if $rows != 8 then
+  return -1
+endi
+if $data[0][0] != ts then
+  return -1
+endi
+if $data[1][0] != c1 then
+  return -1
+endi
+if $data[2][0] != c2 then
+  return -1
+endi
+if $data[3][0] != c3 then
+  return -1
+endi
+if $data[4][0] != c4 then
+  return -1
+endi
+if $data[4][1] != VARCHAR then
+  return -1
+endi
+if $data[4][2] != 13 then
+  return -1
+endi
+if $data[5][0] != t1 then
+  return -1
+endi
+if $data[6][0] != t2 then
+  return -1
+endi
+if $data[7][0] != t3 then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file
diff --git a/tests/script/tsim/stable/column_modify.sim b/tests/script/tsim/stable/column_modify.sim
new file mode 100644
index 0000000000000000000000000000000000000000..732e449c4aea74f5df310a9af71411e99eeb9f25
--- /dev/null
+++ b/tests/script/tsim/stable/column_modify.sim
@@ -0,0 +1,78 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sql connect
+
+print ========== prepare stb and ctb
+sql create database db vgroups 1
+sql create table db.stb (ts timestamp, c1 int, c2 binary(4)) tags(t1 int, t2 float, t3 binary(16)) comment "abd"
+sql create table db.ctb using db.stb tags(101, 102, "103")
+sql insert into db.ctb values(now, 1, "1234")
+
+sql_error alter table db.stb MODIFY column c2 binary(3)
+sql_error alter table db.stb MODIFY column c2 int
+sql_error alter table db.stb MODIFY column c1 int
+sql_error alter table db.stb MODIFY column ts int
+sql_error insert into db.ctb values(now, 1, "12345")
+
+print ========== step1 modify column
+sql alter table db.stb MODIFY column c2 binary(5)
+sql insert into db.ctb values(now, 1, "12345")
+
+sql select * from db.stb
+print $data[0][0] $data[0][1] $data[0][2] $data[0][3] $data[0][4] $data[0][5] $data[0][6]
+print $data[1][0] $data[1][1] $data[1][2] $data[1][3] $data[1][4] $data[1][5] $data[1][6]
+
+if $rows != 2 then
+  return -1
+endi
+if $data[0][1] != 1 then
+  return -1
+endi
+if $data[0][2] != 1234 then
+  return -1
+endi  
+if $data[0][3] != 101 then
+  return -1
+endi
+if $data[1][1] != 1 then
+  return -1
+endi
+if $data[1][2] != 12345 then
+  return -1
+endi
+if $data[1][3] != 101 then
+  return -1
+endi
+
+print ========== step2 describe
+sql describe db.ctb
+if $rows != 7 then
+  return -1
+endi
+if $data[0][0] != ts then
+  return -1
+endi
+if $data[1][0] != c1 then
+  return -1
+endi
+if $data[2][0] != c2 then
+  return -1
+endi
+if $data[2][1] != VARCHAR then
+  return -1
+endi
+if $data[2][2] != 5 then
+  return -1
+endi
+if $data[3][0] != t1 then
+  return -1
+endi
+if $data[4][0] != t2 then
+  return -1
+endi
+if $data[5][0] != t3 then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file