config root man

drop table if exists t1, t2;
drop database if exists mysqltest;
create database mysqltest;
use mysqltest;
drop database mysqltest;
use test;
reset master;
create table t1 (a int primary key) engine=ndb;
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
select @max_epoch:=max(epoch)-1 from mysql.ndb_binlog_index;
@max_epoch:=max(epoch)-1
#
delete from t1;
alter table t1 add (b int);
Warnings:
Warning	1478	Converted FIXED field 'b' to DYNAMIC to enable on-line ADD COLUMN
insert into t1 values (3,3),(4,4);
alter table t1 rename t2;
begin;
insert into t2 values (1,1),(2,2);
update t2 set b=1 where a=3;
delete from t2 where a=4;
commit;
drop table t2;
select inserts from mysql.ndb_binlog_index where epoch > @max_epoch and inserts > 5;
inserts
10
select deletes from mysql.ndb_binlog_index where epoch > @max_epoch and deletes > 5;
deletes
10
select inserts,updates,deletes from 
mysql.ndb_binlog_index where epoch > @max_epoch and updates > 0;
inserts	updates	deletes
2	1	1
flush logs;
purge master logs before now();
Warnings:
Warning	1868	file ./mysqld-bin.000002 was not purged because it is the active log file.
create table t1 (a int primary key, b int) engine=ndb;
create database mysqltest;
use mysqltest;
create table t1 (c int, d int primary key) engine=ndb;
use test;
insert into mysqltest.t1 values (2,1),(2,2);
select @max_epoch:=max(epoch)-1 from mysql.ndb_binlog_index;
@max_epoch:=max(epoch)-1
#
drop table t1;
drop database mysqltest;
select inserts,updates,deletes from 
mysql.ndb_binlog_index where epoch > @max_epoch and inserts > 0;
inserts	updates	deletes
2	0	0
create table t1 (c1 int not null primary key, c2 blob default null) engine=ndbcluster default charset=latin1;
insert into t1 values (1, null), (2, null), (3, null), (4, null);
insert into t1 select c1+4,c2 from t1;
insert into t1 select c1+8,c2 from t1;
insert into t1 select c1+16,c2 from t1;
insert into t1 select c1+32,c2 from t1;
insert into t1 select c1+64,c2 from t1;
insert into t1 select c1+128,c2 from t1;
insert into t1 select c1+256,c2 from t1;
insert into t1 select c1+512,c2 from t1;
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
drop table t1;
SET GLOBAL ndb_log_empty_epochs=ON;
SHOW VARIABLES LIKE 'ndb_log_empty_epochs';
Variable_name	Value
ndb_log_empty_epochs	ON
create table t1 (c1 int not null primary key, c2 blob default null) engine=ndbcluster default charset=latin1;
insert into t1 values (1, null);
show binlog events;
update t1 set c2=null;
select * from t1;
c1	c2
1	NULL
show binlog events;
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
select * from t1;
c1	c2
1	NULL
drop table t1;
create table t1 (c1 int not null primary key, c2 varchar(1024) default null) engine=ndbcluster default charset=latin1;
insert into t1 values (3, null);
select * from t1;
c1	c2
3	NULL
show binlog events;
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
select * from t1;
c1	c2
3	NULL
drop table t1;
SET GLOBAL ndb_log_empty_epochs=OFF;
show binlog events;
SHOW VARIABLES LIKE 'ndb_log_empty_epochs';
Variable_name	Value
ndb_log_empty_epochs	OFF
create table t1 (c1 int not null primary key, c2 blob default null) engine=ndbcluster default charset=latin1;
insert into t1 values (1, null);
show binlog events;
update t1 set c2=null;
select * from t1;
c1	c2
1	NULL
show binlog events;
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
select * from t1;
c1	c2
1	NULL
drop table t1;
create table t1 (c1 int not null primary key, c2 varchar(1024) default null) engine=ndbcluster default charset=latin1;
insert into t1 values (3, null);
select * from t1;
c1	c2
3	NULL
show binlog events;
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
select * from t1;
c1	c2
3	NULL
drop table t1;
SET GLOBAL ndb_log_empty_epochs=OFF;
show binlog events;