set @@session.time_zone='+00:00'; select ifnull(max(trx_id), 0) into @start_trx_id from information_schema.innodb_vtq; create procedure if not exists verify_vtq() begin set @i= 0; select @i:= @i + 1 as No, trx_id > 0 as A, commit_id >= trx_id as B, begin_ts > '1-1-1 0:0:0' as C, commit_ts > begin_ts as D from information_schema.innodb_vtq where trx_id > @start_trx_id; select ifnull(max(trx_id), 0) into @start_trx_id from information_schema.innodb_vtq; end~~ create procedure test_01( sys_type varchar(255), engine varchar(255), fields varchar(255)) begin set @str= concat(' create table t1( x int unsigned, y int unsigned, sys_start ', sys_type, ' generated always as row start, sys_end ', sys_type, ' generated always as row end, period for system_time (sys_start, sys_end)) with system versioning engine ', engine); prepare stmt from @str; execute stmt; drop prepare stmt; insert into t1 (x, y) values (0, 100), (1, 101), (2, 102), (3, 103), (4, 104), (5, 105), (6, 106), (7, 107), (8, 108), (9, 109); set @t0= now(6); if engine = 'innodb' then select sys_start from t1 limit 1 into @x0; end if; delete from t1 where x = 3; delete from t1 where x > 7; insert into t1(x, y) values(3, 33); select sys_start from t1 where x = 3 and y = 33 into @t1; if engine = 'innodb' then set @x1= @t1; select vtq_commit_ts(@x1) into @t1; end if; select x, y from t1; select x as ASOF_x, y from t1 for system_time as of timestamp @t0; select x as FROMTO_x, y from t1 for system_time from timestamp '0-0-0 0:0:0' to timestamp @t1; select x as BETWAND_x, y from t1 for system_time between timestamp '0-0-0 0:0:0' and timestamp @t1; select x as FROMTO_ext_x, y from t1 for system_time from timestamp '0-0-0 0:0:0' to timestamp @t1; select x as BETWAND_ext_x, y from t1 for system_time between timestamp '0-0-0 0:0:0' and timestamp @t1; select x as ALL_x, y from t1 for system_time all; if engine = 'innodb' then select x as ASOF2_x, y from t1 for system_time as of transaction @x0; select x as FROMTO2_x, y from t1 for system_time from transaction 0 to transaction @x1; select x as BETWAND2_x, y from t1 for system_time between transaction 0 and transaction @x1; select x as FROMTO2_ext_x, y from t1 for system_time transaction from 0 to @x1; select x as BETWAND2_ext_x, y from t1 for system_time transaction between 0 and @x1; end if; drop table t1; end~~ create or replace procedure test_02( sys_type varchar(255), engine varchar(255), fields varchar(255)) begin set @str0= concat('( x int, y int, sys_start ', sys_type, ' generated always as row start, sys_end ', sys_type, ' generated always as row end, period for system_time (sys_start, sys_end)) with system versioning engine ', engine); set @str= concat('create or replace table t1', @str0); prepare stmt from @str; execute stmt; drop prepare stmt; set @str= concat('create or replace table t2', @str0); prepare stmt from @str; execute stmt; drop prepare stmt; insert into t1 values (1, 1), (1, 2), (1, 3), (4, 4), (5, 5); insert into t2 values (1, 2), (2, 1), (3, 1); set @t0= now(6); select t1.x as IJ1_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 inner join t2 on t1.x = t2.x; select t1.x as LJ1_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 left join t2 on t1.x = t2.x; select t1.x as RJ1_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 right join t2 on t1.x = t2.x; delete from t1; delete from t2; select t1.x as IJ2_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 inner join t2 on t1.x = t2.x query for system_time as of timestamp @t0; select t1.x as LJ2_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 left join t2 on t1.x = t2.x query for system_time as of timestamp @t0; select t1.x as RJ2_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 right join t2 on t1.x = t2.x query for system_time as of timestamp @t0; drop table t1; drop table t2; end~~ call test_01('timestamp(6)', 'myisam', 'sys_start'); x y 0 100 1 101 2 102 4 104 5 105 6 106 7 107 3 33 ASOF_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 FROMTO_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 BETWAND_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 3 33 FROMTO_ext_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 BETWAND_ext_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 3 33 ALL_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 3 33 call test_01('bigint unsigned', 'innodb', 'vtq_commit_ts(sys_start)'); x y 0 100 1 101 2 102 4 104 5 105 6 106 7 107 3 33 ASOF_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 FROMTO_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 BETWAND_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 3 33 FROMTO_ext_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 BETWAND_ext_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 3 33 ALL_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 3 33 ASOF2_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 FROMTO2_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 BETWAND2_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 3 33 FROMTO2_ext_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 BETWAND2_ext_x y 0 100 1 101 2 102 3 103 4 104 5 105 6 106 7 107 8 108 9 109 3 33 call test_02('timestamp(6)', 'myisam', 'sys_start'); IJ1_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 LJ1_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 4 4 NULL NULL 5 5 NULL NULL RJ1_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 NULL NULL 2 1 NULL NULL 3 1 IJ2_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 LJ2_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 4 4 NULL NULL 5 5 NULL NULL RJ2_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 NULL NULL 2 1 NULL NULL 3 1 call test_02('bigint unsigned', 'innodb', 'vtq_commit_ts(sys_start)'); IJ1_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 LJ1_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 4 4 NULL NULL 5 5 NULL NULL RJ1_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 NULL NULL 2 1 NULL NULL 3 1 IJ2_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 LJ2_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 4 4 NULL NULL 5 5 NULL NULL RJ2_x1 y1 x2 y2 1 1 1 2 1 2 1 2 1 3 1 2 NULL NULL 2 1 NULL NULL 3 1 create table t1( A int ) with system versioning engine=myisam; insert into t1 values(1); select * from t1; A 1 create or replace table t1( A int ) with system versioning engine=innodb; insert into t1 values(1); select * from t1; A 1 create or replace table t1 (x int); insert into t1 values (1); select * from t1 for system_time all; ERROR HY000: System Versioning required: `FOR SYSTEM_TIME` query create or replace table t1 (x int) with system versioning; insert into t1 values (1); select * from t1 for system_time all for update; ERROR HY000: Wrong parameters for `FOR SYSTEM_TIME query`: write-locking of historic rows drop table t1; call verify_vtq; No A B C D 1 1 1 1 1 2 1 1 1 1 3 1 1 1 1 4 1 1 1 1 5 1 1 1 1 6 1 1 1 1 7 1 1 1 1 8 1 1 1 1 9 1 1 1 1 drop procedure test_01; drop procedure test_02; drop procedure verify_vtq;