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MDEV-15427 IB: TRX_ID based operations inside transaction generate history

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[closes tempesta-tech#472]
This commit is contained in:
Aleksey Midenkov 2018-02-27 18:08:49 +03:00 committed by Sergei Golubchik
parent a4251d6f18
commit 72dd813f7e
4 changed files with 70 additions and 19 deletions
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42
mysql-test/suite/versioning/r/trx_id.result
View File

@ -1,13 +1,14 @@
set default_storage_engine= innodb;
create or replace table t1 (
x int,
sys_trx_start bigint(20) unsigned as row start invisible,
sys_trx_end bigint(20) unsigned as row end invisible,
period for system_time (sys_trx_start, sys_trx_end)
) with system versioning engine innodb;
) with system versioning;
insert into t1 (x) values (1);
# ALTER ADD SYSTEM VERSIONING should write to mysql.transaction_registry
set @@system_versioning_alter_history=keep;
create or replace table t1 (x int) engine innodb;
create or replace table t1 (x int);
insert into t1 values (1);
alter table t1
add column s bigint unsigned as row start,
@ -19,7 +20,7 @@ select s from t1 into @trx_start;
select count(*) = 1 from mysql.transaction_registry where transaction_id = @trx_start;
count(*) = 1
1
create or replace table t1 (x int) engine innodb;
create or replace table t1 (x int);
select count(*) from mysql.transaction_registry into @tmp;
alter table t1
add column s bigint unsigned as row start,
@ -30,7 +31,7 @@ algorithm=inplace;
select count(*) = @tmp from mysql.transaction_registry;
count(*) = @tmp
1
create or replace table t1 (x int) engine innodb;
create or replace table t1 (x int);
insert into t1 values (1);
alter table t1
add column s bigint unsigned as row start,
@ -42,7 +43,7 @@ select s from t1 into @trx_start;
select count(*) = 1 from mysql.transaction_registry where transaction_id = @trx_start;
count(*) = 1
1
create or replace table t1 (x int) engine innodb;
create or replace table t1 (x int);
select count(*) from mysql.transaction_registry into @tmp;
alter table t1
add column s bigint unsigned as row start,
@ -59,7 +60,7 @@ x int,
sys_start bigint unsigned as row start invisible,
sys_end bigint unsigned as row end invisible,
period for system_time (sys_start, sys_end)
) engine innodb with system versioning;
) with system versioning;
insert into t1 values (1);
alter table t1 drop column sys_start, drop column sys_end;
select row_end = 18446744073709551615 as transaction_based from t1 for system_time all;
@ -71,7 +72,7 @@ x int,
sys_start bigint(20) unsigned as row start invisible,
sys_end bigint(20) unsigned as row end invisible,
period for system_time (sys_start, sys_end)
) with system versioning engine innodb;
) with system versioning;
set transaction isolation level read committed;
start transaction;
insert into t1 values (1);
@ -128,4 +129,29 @@ x
1
2
3
drop table t1;
#
# MDEV-15427 IB: TRX_ID based operations inside transaction generate history
#
create or replace table t1(
x int(10),
row_start bigint(20) unsigned as row start,
row_end bigint(20) unsigned as row end,
period for system_time(row_start, row_end)
) with system versioning;
begin;
insert into t1 (x) values (1);
delete from t1;
commit;
select x from t1 for system_time all;
x
insert into t1 (x) values (2);
begin;
update t1 set x= 3;
update t1 set x= 4;
commit;
select x, row_start < row_end from t1 for system_time all;
x row_start < row_end
4 1
2 1
drop database test;
create database test;

42
mysql-test/suite/versioning/t/trx_id.test
View File

@ -1,19 +1,21 @@
-- source include/have_innodb.inc
-- source include/not_embedded.inc
set default_storage_engine= innodb;
create or replace table t1 (
x int,
sys_trx_start bigint(20) unsigned as row start invisible,
sys_trx_end bigint(20) unsigned as row end invisible,
period for system_time (sys_trx_start, sys_trx_end)
) with system versioning engine innodb;
) with system versioning;
insert into t1 (x) values (1);
--echo # ALTER ADD SYSTEM VERSIONING should write to mysql.transaction_registry
set @@system_versioning_alter_history=keep;
create or replace table t1 (x int) engine innodb;
create or replace table t1 (x int);
insert into t1 values (1);
alter table t1
add column s bigint unsigned as row start,
@ -24,7 +26,7 @@ alter table t1
select s from t1 into @trx_start;
select count(*) = 1 from mysql.transaction_registry where transaction_id = @trx_start;
create or replace table t1 (x int) engine innodb;
create or replace table t1 (x int);
select count(*) from mysql.transaction_registry into @tmp;
alter table t1
add column s bigint unsigned as row start,
@ -34,7 +36,7 @@ alter table t1
algorithm=inplace;
select count(*) = @tmp from mysql.transaction_registry;
create or replace table t1 (x int) engine innodb;
create or replace table t1 (x int);
insert into t1 values (1);
alter table t1
add column s bigint unsigned as row start,
@ -45,7 +47,7 @@ alter table t1
select s from t1 into @trx_start;
select count(*) = 1 from mysql.transaction_registry where transaction_id = @trx_start;
create or replace table t1 (x int) engine innodb;
create or replace table t1 (x int);
select count(*) from mysql.transaction_registry into @tmp;
alter table t1
add column s bigint unsigned as row start,
@ -62,7 +64,7 @@ create or replace table t1 (
sys_start bigint unsigned as row start invisible,
sys_end bigint unsigned as row end invisible,
period for system_time (sys_start, sys_end)
) engine innodb with system versioning;
) with system versioning;
insert into t1 values (1);
alter table t1 drop column sys_start, drop column sys_end;
select row_end = 18446744073709551615 as transaction_based from t1 for system_time all;
@ -73,7 +75,7 @@ create or replace table t1 (
sys_start bigint(20) unsigned as row start invisible,
sys_end bigint(20) unsigned as row end invisible,
period for system_time (sys_start, sys_end)
) with system versioning engine innodb;
) with system versioning;
set transaction isolation level read committed;
start transaction;
@ -116,4 +118,28 @@ select * from t1 for system_time as of timestamp @ts2;
select * from t1 for system_time as of transaction @trx_id3;
select * from t1 for system_time as of timestamp @ts3;
drop table t1;
--echo #
--echo # MDEV-15427 IB: TRX_ID based operations inside transaction generate history
--echo #
create or replace table t1(
x int(10),
row_start bigint(20) unsigned as row start,
row_end bigint(20) unsigned as row end,
period for system_time(row_start, row_end)
) with system versioning;
begin;
insert into t1 (x) values (1);
delete from t1;
commit;
select x from t1 for system_time all;
insert into t1 (x) values (2);
begin;
update t1 set x= 3;
update t1 set x= 4;
commit;
select x, row_start < row_end from t1 for system_time all;
drop database test;
create database test;

4
sql/table.cc
View File

@ -6403,11 +6403,9 @@ void TABLE::mark_columns_needed_for_delete()
if (need_signal)
file->column_bitmaps_signal();
/*
For System Versioning we have to write and read Sys_end.
*/
if (s->versioned)
{
bitmap_set_bit(read_set, s->vers_start_field()->field_index);
bitmap_set_bit(read_set, s->vers_end_field()->field_index);
bitmap_set_bit(write_set, s->vers_end_field()->field_index);
}

1
storage/innobase/handler/ha_innodb.cc
View File

@ -8948,6 +8948,7 @@ ha_innobase::delete_row(
/* This is a delete */
m_prebuilt->upd_node->is_delete = table->versioned_write(VERS_TRX_ID)
&& table->vers_end_field()->is_max()
&& trx->id != table->vers_start_id()
? VERSIONED_DELETE
: PLAIN_DELETE;