sql connect
sleep 3000

sql show databases
sql drop database $data00 -x e1
e1:
sql show databases
sql drop database $data00 -x e2
e2:

$i = 0
$dbPrefix = lm_do_db
$tbPrefix = lm_do_tb
$db = $dbPrefix . $i
$tb = $tbPrefix . $i

print =============== step1
sql create database $db
sql use $db
sql create table $tb (ts timestamp, speed double) 
#sql insert into $tb values (now, -1.79E+308) -x step1
#	return -1
#step1:

print =============== step2
#sql insert into $tb values (now+1a, 1.79E+308) -x step2
#	return -1
#step2:

sql select * from $tb order by ts desc
if $rows != 0 then 
  return -1
endi

print =============== step3
sql insert into $tb values (now+2a, 2.85)
sql select * from $tb order by ts desc
if $rows != 1 then 
  return -1
endi
if $data01 != 2.850000000 then 
  return -1
endi

print =============== step4
sql insert into $tb values (now+3a, 3.4)
sql select * from $tb order by ts desc
if $rows != 2 then 
  return -1
endi
if $data01 != 3.400000000 then 
  return -1
endi

print =============== step5
sql insert into $tb values (now+4a, a2) -x step51
  return -1
step51:
sql insert into $tb values (now+4a, 0)
sql select * from $tb order by ts desc
if $rows != 3 then 
  return -1
endi
if $data01 != 0.000000000 then 
  return -1
endi

print =============== step6
sql insert into $tb values (now+5a, 2a) -x step6
  return -1
step6:
sql insert into $tb values(now+5a, 2)
sql select * from $tb order by ts desc
if $rows != 4 then 
  return -1
endi
if $data01 != 2.000000000 then 
  return -1
endi

print =============== step7
sql insert into $tb values (now+6a, 2a'1) -x step7
  return -1
step7:
sql insert into $tb values(now+6a, 2)
sql select * from $tb order by ts desc
if $rows != 5 then 
  return -1
endi
if $data01 != 2.000000000 then 
  return -1
endi

sql drop database $db
sql show databases
if $rows != 0 then 
  return -1
endi
