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MDEV-18727 improve DML operation of System Versioning

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MDEV-18957 UPDATE with LIMIT clause is wrong for versioned partitioned tables

UPDATE, DELETE: replace linear search of current/historical records
with vers_setup_conds().

Additional DML cases in view.test
This commit is contained in:
Aleksey Midenkov
2019-11-22 14:29:03 +03:00
parent a14544260c
commit 0076dce2c8
19 changed files with 271 additions and 87 deletions
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78
mysql-test/suite/versioning/r/view.result
View File

@ -64,13 +64,13 @@ select * from vt1;
x
1
2
# VIEW with parameters [#151]
# VIEW with parameters [tempesta-tech/mariadb#151]
create or replace table t1 (x int) with system versioning;
create or replace view vt1(c) as select x from t1;
show create view vt1;
View Create View character_set_client collation_connection
vt1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `vt1` AS select `t1`.`x` AS `c` from `t1` latin1 latin1_swedish_ci
# VIEW over JOIN of versioned tables [#153]
# VIEW over JOIN of versioned tables [tempesta-tech/mariadb#153]
create or replace table t1 (a int) with system versioning;
create or replace table t2 (b int) with system versioning;
insert into t1 values (1);
@ -82,7 +82,7 @@ a b
create or replace view vt12 as select * from t1 for system_time as of timestamp ('0-0-0') cross join t2;
select * from vt12;
a b
# VIEW improvements [#183]
# VIEW improvements [tempesta-tech/mariadb#183]
create or replace table t3 (x int);
create or replace view vt1 as select * from t1, t2, t3;
show create view vt1;
@ -96,12 +96,12 @@ create or replace view vt1 as select a, t2.row_end as endo from t3, t1, t2;
show create view vt1;
View Create View character_set_client collation_connection
vt1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `vt1` AS select `t1`.`a` AS `a`,`t2`.`row_end` AS `endo` from ((`t3` join `t1`) join `t2`) latin1 latin1_swedish_ci
# VIEW over UNION [#269]
# VIEW over UNION [tempesta-tech/mariadb#269]
create or replace view vt1 as select * from t1 union select * from t1;
select * from vt1;
a
1
# VIEW over UNION with non-versioned [#393]
# VIEW over UNION with non-versioned [tempesta-tech/mariadb#393]
create or replace table t2 (a int);
create or replace view vt1 as select * from t1 union select * from t2;
select * from vt1;
@ -123,10 +123,10 @@ drop tables t1, t2;
#
# MDEV-15146 SQLError[4122]: View is not system versioned
#
create table t1 (a int) with system versioning;
create or replace table t1 (a int) with system versioning;
insert t1 values (1),(2);
set @a=now(6);
create view v1 as select * from t1;
create or replace view v1 as select * from t1;
delete from t1;
select * from v1;
a
@ -149,3 +149,67 @@ View Create View character_set_client collation_connection
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i` from `t1` FOR SYSTEM_TIME AS OF current_timestamp() - interval 6 second latin1 latin1_swedish_ci
drop view v1, vt1, vt12;
drop tables t1, t3;
#
# MDEV-18727 improve DML operation of System Versioning
#
create or replace table t1 (
x int,
row_start SYS_DATATYPE as row start invisible,
row_end SYS_DATATYPE as row end invisible,
period for system_time (row_start, row_end)
) with system versioning;
insert into t1 values (1), (2);
create or replace view v1 as select * from t1 where x > 1;
update v1 set x= x + 1;
select *, check_row(row_start, row_end) from t1 for system_time all order by x;
x check_row(row_start, row_end)
1 CURRENT ROW
2 HISTORICAL ROW
3 CURRENT ROW
insert v1 values (4);
select *, check_row(row_start, row_end) from t1 for system_time all order by x;
x check_row(row_start, row_end)
1 CURRENT ROW
2 HISTORICAL ROW
3 CURRENT ROW
4 CURRENT ROW
delete from v1 where x < 4;
select *, check_row(row_start, row_end) from t1 for system_time all order by x;
x check_row(row_start, row_end)
1 CURRENT ROW
2 HISTORICAL ROW
3 HISTORICAL ROW
4 CURRENT ROW
# multi-update
create or replace table t2 like t1;
insert into t2 values (1), (2);
create or replace view v2 as select * from t2 where x > 1;
update v1, v2 set v1.x= v1.x + 1, v2.x= v2.x + 1 where v1.x = v2.x + 2;
select *, check_row(row_start, row_end) from t1 for system_time all order by x;
x check_row(row_start, row_end)
1 CURRENT ROW
2 HISTORICAL ROW
3 HISTORICAL ROW
4 HISTORICAL ROW
5 CURRENT ROW
select *, check_row(row_start, row_end) from t2 for system_time all order by x;
x check_row(row_start, row_end)
1 CURRENT ROW
2 HISTORICAL ROW
3 CURRENT ROW
# multi-delete
delete v1, v2 from v1 join v2 where v1.x = v2.x + 2;
select *, check_row(row_start, row_end) from t1 for system_time all order by x;
x check_row(row_start, row_end)
1 CURRENT ROW
2 HISTORICAL ROW
3 HISTORICAL ROW
4 HISTORICAL ROW
5 HISTORICAL ROW
select *, check_row(row_start, row_end) from t2 for system_time all order by x;
x check_row(row_start, row_end)
1 CURRENT ROW
2 HISTORICAL ROW
3 HISTORICAL ROW
drop view v1, v2;
drop tables t1, t2;