set session tidb_opt_write_row_id = ON;
drop table if exists t;
create table t (a int, b int);
insert t values (1, 7), (1, 8), (1, 9);
select *, _tidb_rowid from t;
a	b	_tidb_rowid
1	7	1
1	8	2
1	9	3
update t set a = 2 where _tidb_rowid = 2;
select *, _tidb_rowid from t;
a	b	_tidb_rowid
1	7	1
2	8	2
1	9	3
delete from t where _tidb_rowid = 2;
select *, _tidb_rowid from t;
a	b	_tidb_rowid
1	7	1
1	9	3
insert t (a, b, _tidb_rowid) values (2, 2, 2), (5, 5, 5);
select *, _tidb_rowid from t;
a	b	_tidb_rowid
1	7	1
2	2	2
1	9	3
5	5	5
create table s (a int primary key);
insert s values (1);
insert s (a, _tidb_rowid) values (1, 2);
Error 1054 (42S22): Unknown column '_tidb_rowid' in 'field list'
select _tidb_rowid from s;
Error 1054 (42S22): Unknown column '_tidb_rowid' in 'field list'
update s set a = 2 where _tidb_rowid = 1;
Error 1054 (42S22): Unknown column '_tidb_rowid' in 'where clause'
delete from s where _tidb_rowid = 1;
Error 1054 (42S22): Unknown column '_tidb_rowid' in 'where clause'
insert into t (a, _tidb_rowid) values(10, 1);
Error 1105 (HY000): insert, update and replace statements for _tidb_rowid are not supported
set session tidb_opt_write_row_id = default;
set tidb_enable_clustered_index = INT_ONLY;
drop table if exists tt;
create table tt(id binary(10), c int, primary key(id));
insert tt values (1, 10);
select hex(id), c, _tidb_rowid from tt;
hex(id)	c	_tidb_rowid
31000000000000000000	10	1
insert into tt (id, c, _tidb_rowid) values(30000,10,1);
Error 1105 (HY000): insert, update and replace statements for _tidb_rowid are not supported
replace into tt (id, c, _tidb_rowid) values(30000,10,1);
Error 1105 (HY000): insert, update and replace statements for _tidb_rowid are not supported
update tt set id = 2, _tidb_rowid = 1 where _tidb_rowid = 1;
Error 1105 (HY000): insert, update and replace statements for _tidb_rowid are not supported
update tt set id = 2 where _tidb_rowid = 1;
admin check table tt;
drop table tt;
set tidb_enable_clustered_index = default;
drop table if exists t;
create table t (a int);
set @@tidb_opt_write_row_id = true;
insert into t (_tidb_rowid, a) values (1, 1), (2, 2);
select *, _tidb_rowid from t;
a	_tidb_rowid
1	1
2	2
drop table if exists t;
create table t(id varchar(10), c int);
insert t values('one', 101), ('two', 102);
select *, _tidb_rowid from t;
id	c	_tidb_rowid
one	101	1
two	102	2
insert t (id, c, _tidb_rowid) values ('three', 103, 9), ('four', 104, 16), ('five', 105, 5);
select *, _tidb_rowid from t where c > 102;
id	c	_tidb_rowid
five	105	5
four	104	16
three	103	9
insert t values ('six', 106), ('seven', 107);
select *, _tidb_rowid from t where c > 105;
id	c	_tidb_rowid
seven	107	18
six	106	17
drop table if exists t;
create table t (a int) shard_row_id_bits = 5;
insert into t values (1);
select *, ((1 << (64-5-1)) - 1) & _tidb_rowid from t order by a;
a	((1 << (64-5-1)) - 1) & _tidb_rowid
1	1
insert into t (a, _tidb_rowid) values (2, (1<<62)+5);
insert into t values (3);
select *, ((1 << (64-5-1)) - 1) & _tidb_rowid from t order by a;
a	((1 << (64-5-1)) - 1) & _tidb_rowid
1	1
2	5
3	6
insert into t (a, _tidb_rowid) values (4, null);
select *, ((1 << (64-5-1)) - 1) & _tidb_rowid from t order by a;
a	((1 << (64-5-1)) - 1) & _tidb_rowid
1	1
2	5
3	6
4	7
delete from t;
SET sql_mode=(SELECT CONCAT(@@sql_mode,',NO_AUTO_VALUE_ON_ZERO'));
insert into t (a, _tidb_rowid) values (5, 0);
select *, ((1 << (64-5-1)) - 1) & _tidb_rowid from t order by a;
a	((1 << (64-5-1)) - 1) & _tidb_rowid
5	0
SET sql_mode=(SELECT REPLACE(@@sql_mode,'NO_AUTO_VALUE_ON_ZERO',''));
insert into t (a, _tidb_rowid) values (6, 0);
select *, ((1 << (64-5-1)) - 1) & _tidb_rowid from t order by a;
a	((1 << (64-5-1)) - 1) & _tidb_rowid
5	0
6	8
insert into t (_tidb_rowid, a) values (0, 7);
select *, ((1 << (64-5-1)) - 1) & _tidb_rowid from t order by a;
a	((1 << (64-5-1)) - 1) & _tidb_rowid
5	0
6	8
7	9
set @@tidb_opt_write_row_id = default;