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 != 6 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 system sh/exec.sh -n dnode1 -s start sql connect 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 system sh/exec.sh -n dnode1 -s stop -x SIGINT