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 function if not exists default_engine() returns varchar(255) deterministic begin declare e varchar(255); select lower(engine) from information_schema.engines where support='DEFAULT' into e; return e; end~~ create function if not exists sys_datatype() returns varchar(255) deterministic begin if default_engine() = 'innodb' then return 'bigint unsigned'; elseif default_engine() = 'myisam' then return 'timestamp(6)'; end if; return NULL; end~~ create function if not exists sys_commit_ts(sys_field varchar(255)) returns varchar(255) deterministic begin if default_engine() = 'innodb' then return concat('vtq_commit_ts(', sys_field, ')'); elseif default_engine() = 'myisam' then return sys_field; end if; return NULL; end~~ create procedure if not exists innodb_verify_vtq(recs int) begin declare i int default 1; if default_engine() = 'innodb' then call verify_vtq; elseif default_engine() = 'myisam' then create temporary table tmp (No int, A bool, B bool, C bool, D bool); while i <= recs do insert into tmp values (i, 1, 1, 1, 1); set i= i + 1; end while; select * from tmp; drop table tmp; end if; end~~ drop table if exists t1; create function if not exists non_default_engine() returns varchar(255) deterministic begin if default_engine() = 'innodb' then return 'myisam'; end if; return 'innodb'; end~~ create table t1 ( x1 int unsigned, Sys_start SYS_TRX_TYPE generated always as row start comment 'start', Sys_end SYS_TRX_TYPE generated always as row end comment 'end', period for system_time (Sys_start, Sys_end) ) with system versioning; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `x1` int(10) unsigned DEFAULT NULL, `Sys_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START COMMENT 'start', `Sys_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END COMMENT 'end', PERIOD FOR SYSTEM_TIME (`Sys_start`, `Sys_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING # Implicit fields test create or replace table t1 ( x2 int unsigned ) with system versioning; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `x2` int(10) unsigned DEFAULT NULL, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING create or replace table t1 ( x3 int unsigned, Sys_start SYS_TRX_TYPE generated always as row start, Sys_start2 SYS_TRX_TYPE generated always as row start, Sys_end SYS_TRX_TYPE generated always as row end, period for system_time (Sys_start, Sys_end) ) with system versioning; ERROR HY000: Wrong parameters for `t1`: multiple 'AS ROW START' (`Sys_start2`, `Sys_start`) create or replace table t1 ( x4 int unsigned, Sys_start SYS_TRX_TYPE generated always as row start, Sys_end2 SYS_TRX_TYPE generated always as row end, period for system_time (Sys_start, Sys_end) ) with system versioning; ERROR HY000: Wrong parameters for `t1`: mismatch 'PERIOD FOR SYSTEM_TIME' and 'AS ROW END' create or replace table t1 ( x5 int unsigned, Sys_start SYS_TRX_TYPE generated always as row start, Sys_end SYS_TRX_TYPE generated always as row end, Sys_end2 SYS_TRX_TYPE generated always as row end, period for system_time (Sys_start, Sys_end) ) with system versioning; ERROR HY000: Wrong parameters for `t1`: multiple 'AS ROW END' (`Sys_end2`, `Sys_end`) create or replace table t1 ( x6 int unsigned, period for system_time (Sys_start, Sys_end) ) with system versioning; ERROR HY000: Wrong parameters for `t1`: missing 'AS ROW START' create or replace table t1 ( x7 int unsigned, Sys_start SYS_TRX_TYPE generated always as row start, Sys_end SYS_TRX_TYPE generated always as row end, Sys_end2 SYS_TRX_TYPE generated always as row end, period for system_time (Sys_start, Sys_end) ); ERROR HY000: Wrong parameters for `t1`: multiple 'AS ROW END' (`Sys_end2`, `Sys_end`) create or replace table t1 ( x8 int unsigned, Sys_start SYS_TRX_TYPE generated always as row start, Sys_end SYS_TRX_TYPE generated always as row end, period for system_time (sys_insert, sys_remove) ) with system versioning; ERROR HY000: Wrong parameters for `t1`: mismatch 'PERIOD FOR SYSTEM_TIME' and 'AS ROW START' create or replace table t1 ( x9 int unsigned, Sys_start SYS_TRX_TYPE generated always as row start, Sys_end SYS_TRX_TYPE generated always as row end, period for system_time (Sys_start, Sys_end) ); ERROR HY000: Wrong parameters for `t1`: missing 'WITH SYSTEM VERSIONING' create or replace table t1 ( x10 int unsigned, Sys_start SYS_TRX_TYPE generated always as row start, Sys_end SYS_TRX_TYPE generated always as row end, period for system_time (Sys_start, Sys_start) ); ERROR HY000: Wrong parameters for `t1`: multiple `Sys_start` for 'PERIOD FOR SYSTEM_TIME' create or replace table t1 ( x11 int unsigned, Sys_start bigint unsigned generated always as row start, Sys_end timestamp(6) generated always as row end, period for system_time (Sys_start, Sys_end) ) with system versioning; Got one of the listed errors create or replace table t1 ( x12 int unsigned, Sys_start timestamp(6) generated always as row start, Sys_end bigint unsigned generated always as row end, period for system_time (Sys_start, Sys_end) ) with system versioning; Got one of the listed errors create or replace table t1 ( x13 int unsigned, Sys_start bigint generated always as row start, Sys_end bigint unsigned generated always as row end, period for system_time (Sys_start, Sys_end) ) with system versioning engine innodb; ERROR HY000: `Sys_start` must be of type `BIGINT(20) UNSIGNED` for versioned table `t1` create or replace table t1 ( x14 int unsigned, Sys_start bigint unsigned generated always as row start, Sys_end bigint generated always as row end, period for system_time (Sys_start, Sys_end) ) with system versioning engine innodb; ERROR HY000: `Sys_end` must be of type `BIGINT(20) UNSIGNED` for versioned table `t1` create or replace table t1 ( A1 int with system versioning, B int ); show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `A1` int(11) DEFAULT NULL, `B` int(11) DEFAULT NULL WITHOUT SYSTEM VERSIONING, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING create or replace table t1 ( A2 int with system versioning, B int ) with system versioning; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `A2` int(11) DEFAULT NULL, `B` int(11) DEFAULT NULL, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING create or replace table t1 ( A3 int, B int without system versioning ); ERROR HY000: Wrong parameters for `t1`: missing 'WITH SYSTEM VERSIONING' create or replace table t1 ( A4 int, B int without system versioning ) with system versioning; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `A4` int(11) DEFAULT NULL, `B` int(11) DEFAULT NULL WITHOUT SYSTEM VERSIONING, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING create or replace table t1 ( A5 int with system versioning, B int without system versioning ); show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `A5` int(11) DEFAULT NULL, `B` int(11) DEFAULT NULL WITHOUT SYSTEM VERSIONING, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING create or replace table t1 ( A6 int with system versioning, B int without system versioning ) with system versioning; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `A6` int(11) DEFAULT NULL, `B` int(11) DEFAULT NULL WITHOUT SYSTEM VERSIONING, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING create or replace table t1 ( A7 int without system versioning ); ERROR HY000: Wrong parameters for `t1`: missing 'WITH SYSTEM VERSIONING' create or replace table t1 ( A8 int without system versioning ) with system versioning; ERROR HY000: Wrong parameters for `t1`: no columns defined 'WITH SYSTEM VERSIONING' create or replace table t1 ( A9 int without system versioning with system versioning ); ERROR HY000: Wrong parameters for `t1`: multiple 'WITH/WITHOUT SYSTEM VERSIONING' for `A9` create or replace table t1 ( A10 int with system versioning without system versioning ); ERROR HY000: Wrong parameters for `t1`: multiple 'WITH/WITHOUT SYSTEM VERSIONING' for `A10` create table t( a11 int ) without system versioning; ERROR HY000: Wrong parameters for `t`: not allowed 'WITHOUT SYSTEM VERSIONING' create or replace table t1 ( A12 int ) without system versioning with system versioning; ERROR HY000: Wrong parameters for `t1`: multiple 'WITH/WITHOUT SYSTEM VERSIONING' create or replace table t1 ( A13 int ) with system versioning without system versioning; ERROR HY000: Wrong parameters for `t1`: multiple 'WITH/WITHOUT SYSTEM VERSIONING' create or replace table t1 ( A14 int ) with system versioning with system versioning; ERROR HY000: Wrong parameters for `t1`: multiple 'WITH/WITHOUT SYSTEM VERSIONING' create or replace table t1 ( A15 int ) without system versioning without system versioning; ERROR HY000: Wrong parameters for `t1`: multiple 'WITH/WITHOUT SYSTEM VERSIONING' create or replace table t1 (a int) with system versioning; create temporary table tmp with system versioning select * from t1; create or replace table t1 (a int) with system versioning; create table tt1 like t1; show create table tt1; Table Create Table tt1 CREATE TABLE `tt1` ( `a` int(11) DEFAULT NULL, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING drop table tt1; create or replace table t1 (x int) with system versioning; create or replace table t0( y int, st SYS_TRX_TYPE generated always as row start, en SYS_TRX_TYPE generated always as row end, period for system_time (st, en) ) with system versioning; create or replace table t2 as select * from t1; show create table t2; Table Create Table t2 CREATE TABLE `t2` ( `x` int(11) DEFAULT NULL ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 create or replace table t3 as select * from t0; show create table t3; Table Create Table t3 CREATE TABLE `t3` ( `y` int(11) DEFAULT NULL ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 insert into t1 values (1); insert into t0 values (2); create or replace table t2 with system versioning as select * from t1; show create table t2; Table Create Table t2 CREATE TABLE `t2` ( `x` int(11) DEFAULT NULL, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING select * from t2; x 1 create or replace table t3 with system versioning as select * from t0; show create table t3; Table Create Table t3 CREATE TABLE `t3` ( `y` int(11) DEFAULT NULL, `st` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `en` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, PERIOD FOR SYSTEM_TIME (`st`, `en`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING select * from t3 where y > 2; y st en delete from t0; create or replace table t1 (x int) with system versioning; create or replace table t2 (y int); create or replace table t3 with system versioning select * from t1 for system_time all, t2; show create table t3; Table Create Table t3 CREATE TABLE `t3` ( `x` int(11) DEFAULT NULL, `sys_trx_start` SYS_TRX_TYPE GENERATED ALWAYS AS ROW START, `sys_trx_end` SYS_TRX_TYPE GENERATED ALWAYS AS ROW END, `y` int(11) DEFAULT NULL, PERIOD FOR SYSTEM_TIME (`sys_trx_start`, `sys_trx_end`) ) ENGINE=INNODB_OR_MYISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING create or replace table t2 with system versioning as select * from t0; create or replace table t3 with system versioning select x, y, t1.sys_trx_start, t2.en from t1, t2; ERROR HY000: Wrong parameters for `t3`: system fields selected from different tables insert into t2 values (1), (2); delete from t2 where y = 2; create or replace table t3 select * from t2 for system_time all; select st, en from t2 where y = 1 into @st, @en; select y from t2 for system_time all where st = @st and en = @en; y 1 select st, en from t2 for system_time all where y = 2 into @st, @en; select y from t2 for system_time all where st = @st and en = @en; y 2 create or replace table t1 (a int) with system versioning engine INNODB_OR_MYISAM; create or replace table t2 as select a, sys_trx_start, sys_trx_end from t1 for system_time all; create or replace table t2 with system versioning engine INNODB_OR_MYISAM as select a, sys_trx_start, sys_trx_end from t1 for system_time all; ERROR HY000: `sys_trx_start` must be of type `SYS_TRX_TYPE` for versioned table `t2` create or replace table t1 (a int, id int) with system versioning engine INNODB_OR_MYISAM; create or replace table t2 (b int, id int); create or replace table t3 as select t2.b, t1.a, t1.sys_trx_start, t1.sys_trx_end from t2 inner join t1 on t2.id=t1.id; drop database test; create database test;