set @old_innodb_limit_optimistic_insert_debug = @@innodb_limit_optimistic_insert_debug;
CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB STATS_PERSISTENT=0;
set global innodb_limit_optimistic_insert_debug = 2;
insert into t1 values (1);
begin;
insert into t1 values (5);
begin;
insert into t1 values (4);
insert into t1 values (3);
begin;
insert into t1 values (2);
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
select CLUST_INDEX_SIZE from information_schema.INNODB_SYS_TABLESTATS where NAME = 'test/t1';
CLUST_INDEX_SIZE
10
rollback;
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
select CLUST_INDEX_SIZE from information_schema.INNODB_SYS_TABLESTATS where NAME = 'test/t1';
CLUST_INDEX_SIZE
8
rollback;
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
select CLUST_INDEX_SIZE from information_schema.INNODB_SYS_TABLESTATS where NAME = 'test/t1';
CLUST_INDEX_SIZE
5
set global innodb_limit_optimistic_insert_debug = 10000;
rollback;
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
select CLUST_INDEX_SIZE from information_schema.INNODB_SYS_TABLESTATS where NAME = 'test/t1';
CLUST_INDEX_SIZE
3
begin;
insert into t1 values (2);
rollback;
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
select CLUST_INDEX_SIZE from information_schema.INNODB_SYS_TABLESTATS where NAME = 'test/t1';
CLUST_INDEX_SIZE
2
begin;
insert into t1 values (2);
rollback;
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
select CLUST_INDEX_SIZE from information_schema.INNODB_SYS_TABLESTATS where NAME = 'test/t1';
CLUST_INDEX_SIZE
1
drop table t1;
set global innodb_limit_optimistic_insert_debug = @old_innodb_limit_optimistic_insert_debug;