system sh/stop_dnodes.sh
system sh/deploy.sh -n dnode1 -i 1
system sh/cfg.sh -n dnode1 -c debugflag -v 131
system sh/exec.sh -n dnode1 -s start -v
sql connect

print =============== step1: create drop show dnodes
$x = 0
step1:
	$x = $x + 1
	sleep 1000
	if $x == 10 then
	  print ---> dnode not ready!
		return -1
	endi
sql show dnodes
print ---> $data00 $data01 $data02 $data03 $data04 $data05
if $rows != 1 then
  return -1
endi
if $data(1)[4] != ready then
  goto step1
endi

print =============== step2: create db
sql create database db
sql use db
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.c1 using db.stb tags(101, 102, "103")

print =============== step3: alter stb
sql_error alter table db.stb add column ts int
sql alter table db.stb add column c3 int
sql alter table db.stb add column c4 bigint
sql alter table db.stb add column c5 binary(12)
sql alter table db.stb drop column c1
sql alter table db.stb drop column c4
sql alter table db.stb MODIFY column c2 binary(32)
sql alter table db.stb add tag t4 bigint
sql alter table db.stb add tag c1 int  
sql alter table db.stb add tag t5 binary(12)
sql alter table db.stb drop tag c1
sql alter table db.stb drop tag t5
sql alter table db.stb MODIFY tag t3 binary(32)
sql alter table db.stb rename tag t1 tx
sql alter table db.stb comment 'abcde' ;
sql drop table db.stb

print =============== step4: alter tb
sql create table tb (ts timestamp, a int)
sql insert into tb values(now-28d, -28)
sql select count(a) from tb
sql alter table tb add column b smallint
sql insert into tb values(now-25d, -25, 0)
sql select count(b) from tb
sql alter table tb add column c tinyint
sql insert into tb values(now-22d, -22, 3, 0)
sql select count(c) from tb
sql alter table tb add column d int
sql insert into tb values(now-19d, -19, 6, 0, 0)
sql select count(d) from tb
sql alter table tb add column e bigint
sql alter table tb add column f float
sql alter table tb add column g double
sql alter table tb add column h binary(10)
sql select count(a), count(b), count(c), count(d), count(e), count(f), count(g), count(h) from tb
sql select * from tb order by ts desc

print =============== step5: alter stb and insert data
sql create table stb (ts timestamp, c1 int, c2 binary(4)) tags(t1 int, t2 float, t3 binary(16)) comment "abd"
sql show db.stables
sql describe stb
sql_error alter table stb add column ts int

sql create table db.ctb using db.stb tags(101, 102, "103")
sql insert into db.ctb values(now, 1, "2")
sql show db.tables
sql select * from db.stb
sql select * from tb

sql alter table stb add column c3 int
sql describe stb
sql select * from db.stb
sql select * from tb
sql insert into db.ctb values(now+1s, 1, 2, 3)
sql select * from db.stb

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 alter table db.stb drop column c1
sql reset query cache
sql select * from tb
sql insert into db.ctb values(now+3s, 2, 3, 4)
sql select * from db.stb

sql alter table db.stb add tag t4 bigint
sql select * from db.stb
sql select * from db.stb
sql_error create table db.ctb2 using db.stb tags(101, "102")
sql create table db.ctb2 using db.stb tags(101, 102, "103", 104)
sql insert into db.ctb2 values(now, 1, 2, 3)

print =============== step6: query data
sql select * from db.stb where tbname = 'ctb2';

_OVER:
system sh/exec.sh -n dnode1 -s stop -x SIGINT
print =============== check
$null=

system_content sh/checkValgrind.sh -n dnode1 
print cmd return result ----> [ $system_content ]
if $system_content > 0 then
  return -1
endi 

if $system_content == $null then
  return -1
endi