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Code Activity

MDEV-20077 Warning on full history partition is delayed until next DML statement

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Moved LIMIT warning from vers_set_hist_part() to new call
vers_check_limit() at table unlock phase. At that point
read_partitions bitmap is already pruned by DML code (see
prune_partitions(), find_used_partitions()) so we have to set
corresponding bits for working history partition.

Also we don't do my_error(ME_WARNING|ME_ERROR_LOG), because at that
point it doesn't update warnings number, so command reports 0 warnings
(but warning list is still updated). Instead we do
push_warning_printf() and sql_print_warning() separately.

Under LOCK TABLES external_lock(F_UNLCK) is not executed. There is
start_stmt(), but no corresponding "stop_stmt()". So for that mode we
call vers_check_limit() directly from close_thread_tables().

Test result has been changed according to new LIMIT and warning
printing algorithm. For convenience all LIMIT warnings are marked with
"You see warning above ^".

TODO MDEV-20345 fixed. Now vers_history_generating() contains
fine-grained list of DML-commands that can generate history (and TODO
mechanism worked well).
This commit is contained in:
Aleksey Midenkov
2022-04-25 13:58:41 +03:00
parent ea2f09979f
commit ddc416c606
9 changed files with 530 additions and 49 deletions
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3
mysql-test/suite/versioning/r/delete_history.result
View File

@ -65,6 +65,9 @@ partition pn current);
insert into t values (1);
update t set a= 2;
update t set a= 3;
Warnings:
Warning 4114 Versioned table `test`.`t`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
delete history from t;
select * from t for system_time all;
a

258
mysql-test/suite/versioning/r/partition.result
View File

@ -244,6 +244,9 @@ x
6
delete from t1 where x < 4;
delete from t1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
select * from t1 partition (p0);
x
1
@ -255,12 +258,11 @@ x
5
6
insert into t1 values (7), (8);
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
### warn about full partition
delete from t1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
select * from t1 partition (p1) order by x;
x
4
@ -320,20 +322,26 @@ x
### warn about full partition
delete from t1 where x < 3;
delete from t1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
delete from t1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^ (no matter if nothing was deleted)
select * from t1 partition (p0sp0);
x
1
3
5
select * from t1 partition (p0sp1);
x
2
4
select * from t1 partition (p1sp0);
x
3
5
select * from t1 partition (p1sp1);
x
4
create or replace table t1 (
a bigint,
row_start SYS_DATATYPE as row start invisible,
@ -415,7 +423,13 @@ partition p1 history,
partition p2 history,
partition pn current);
delete from t1 where x = 1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p2` is full, add more HISTORY partitions
# You see warning above ^
delete from t1 where x = 2;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p2` is full, add more HISTORY partitions
# You see warning above ^
# MDEV-14923 Assertion upon INSERT into locked versioned partitioned table
create or replace table t1 (x int) with system versioning
partition by system_time (partition p1 history, partition pn current);
@ -577,9 +591,13 @@ create or replace table t1 (x int) with system versioning partition by system_ti
lock tables t1 write;
insert into t1 values (0), (1), (2), (3);
delete from t1 where x < 3;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
delete from t1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
unlock tables;
#
# MDEV-20336 Assertion bitmap_is_set(read_partitions) upon SELECT FOR UPDATE from versioned table
@ -680,6 +698,9 @@ partition by system_time limit 1
insert into t1 values (null);
update t1 set f= 'foo';
update t1 set f= 'bar';
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p2` is full, add more HISTORY partitions
# You see warning above ^
create or replace view v1 as select * from t1 for system_time all;
update v1 set f= '';
ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
@ -846,23 +867,20 @@ create table t1 (x int) with system versioning
partition by system_time limit 1 (
partition p0 history,
partition p1 history,
partition p2 history, # p2 just disables warning about p1 partition full
partition pn current);
insert into t1 values (0);
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
select * from t1 partition (p0);
x
0
1
select * from t1 partition (p1);
x
2
3
1
select * from t1 partition (pn);
x
4
2
# TRUNCATE TABLE deletes history and current data
truncate table t1;
select * from t1 partition (p0);
@ -874,8 +892,6 @@ x
insert into t1 values (0);
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
# TRUNCATE PARTITION ALL does the same
alter table t1 truncate partition all;
select * from t1 partition (p0);
@ -887,29 +903,235 @@ x
insert into t1 values (0);
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
# TRUNCATE PARTITION deletes data from HISTORY partition
alter table t1 truncate partition p1;
select * from t1 partition (p0);
x
0
1
select * from t1 partition (p1);
x
select * from t1 partition (pn);
x
4
2
# or from CURRENT partition
alter table t1 truncate partition pn;
select * from t1 partition (p0);
x
0
1
select * from t1 partition (p1);
x
select * from t1 partition (pn);
x
drop table t1;
#
# MDEV-20077 Warning on full history partition is delayed until next DML statement
#
# DELETE
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_200;
# p0 is filled with 100 records (no warnings):
delete from t1 where x <= 99;
# p1 is filled with 1 + 100 records (warning is printed):
delete from t1 where x <= 100;
delete from t1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
101
drop table t1;
# DELETE under LOCK TABLES
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_200;
lock tables t1 write;
# (LOCK TABLES) p0 is filled with 100 records (no warnings):
delete from t1 where x <= 99;
# (LOCK TABLES) p1 is filled with 1 + 100 records (warning is printed):
delete from t1 where x <= 100;
delete from t1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
unlock tables;
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
101
drop table t1;
# DELETE multitable
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
create table t2 (y int);
insert into t1 select seq from seq_0_to_200;
insert into t2 select seq from seq_0_to_3;
delete t1, t2 from t1 join t2 where x < 50 and y = 0;
delete t1, t2 from t1 join t2 where x < 100 and y = 1;
delete t1, t2 from t1 join t2 where x < 150 and y = 2;
delete t1, t2 from t1 join t2;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
101
drop table t1;
# UDPATE
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_49;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
100
drop tables t1, t2;
# UPDATE multitable
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
create table t2 (y int);
insert into t1 select seq from seq_0_to_49;
insert into t2 values (5);
update t1, t2 set x= x + 1;
update t1, t2 set x= x + 1;
update t1, t2 set x= x + 1;
update t1, t2 set x= x + 1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
100
drop tables t1, t2;
# INSERT .. ON DUPLICATE KEY UPDATE (ODKU)
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_100;
delete from t1 where x <= 99;
insert into t1 values (100) on duplicate key update x= 400;
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
1
drop table t1;
# INSERT .. SELECT .. ON DUPLICATE KEY UPDATE (ODKU)
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
create table t2 (y int);
insert into t2 values (100);
insert into t1 select seq from seq_0_to_100;
delete from t1 where x <= 99;
insert into t1 select * from t2 on duplicate key update x= 500;
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
1
drop tables t1, t2;
# REPLACE
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_100;
delete from t1 where x < 99;
replace t1 values (100);
replace t1 values (100);
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
1
drop table t1;
# LOAD DATA .. REPLACE
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_49;
select x into outfile 'MDEV-20077.data' from t1;
load data infile 'MDEV-20077.data' replace into table t1 (x);
load data infile 'MDEV-20077.data' replace into table t1 (x);
load data infile 'MDEV-20077.data' replace into table t1 (x);
load data infile 'MDEV-20077.data' replace into table t1 (x);
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
100
drop table t1;
# REPLACE .. SELECT
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_49;
replace t1 select * from t1;
replace t1 select * from t1;
replace t1 select * from t1;
replace t1 select * from t1;
Warnings:
Warning 4114 Versioned table `test`.`t1`: partition `p1` is full, add more HISTORY partitions
# You see warning above ^
select count(*) from t1 partition (p0);
count(*)
100
select count(*) from t1 partition (p1);
count(*)
100
drop table t1;
# End of 10.3 tests
set global innodb_stats_persistent= @save_persistent;

1
mysql-test/suite/versioning/t/delete_history.test
View File

@ -65,6 +65,7 @@ partition by system_time limit 1 (
insert into t values (1);
update t set a= 2;
update t set a= 3;
--echo # You see warning above ^
delete history from t;
select * from t for system_time all;

214
mysql-test/suite/versioning/t/partition.test
View File

@ -228,12 +228,14 @@ insert into t1 values (1), (2), (3), (4), (5), (6);
select * from t1 partition (pn);
delete from t1 where x < 4;
delete from t1;
--echo # You see warning above ^
select * from t1 partition (p0);
select * from t1 partition (p1);
insert into t1 values (7), (8);
--echo ### warn about full partition
delete from t1;
--echo # You see warning above ^
select * from t1 partition (p1) order by x;
--echo ### Assertion in ALTER on warning from partitioning LIMIT [#446]
@ -283,7 +285,9 @@ select * from t1 partition (pnsp1);
--echo ### warn about full partition
delete from t1 where x < 3;
delete from t1;
--echo # You see warning above ^
delete from t1;
--echo # You see warning above ^ (no matter if nothing was deleted)
select * from t1 partition (p0sp0);
select * from t1 partition (p0sp1);
select * from t1 partition (p1sp0);
@ -381,7 +385,9 @@ alter table t1 partition by system_time limit 1 (
partition p2 history,
partition pn current);
delete from t1 where x = 1;
--echo # You see warning above ^
delete from t1 where x = 2;
--echo # You see warning above ^
--echo # MDEV-14923 Assertion upon INSERT into locked versioned partitioned table
create or replace table t1 (x int) with system versioning
@ -529,7 +535,9 @@ create or replace table t1 (x int) with system versioning partition by system_ti
lock tables t1 write;
insert into t1 values (0), (1), (2), (3);
delete from t1 where x < 3;
--echo # You see warning above ^
delete from t1;
--echo # You see warning above ^
unlock tables;
--echo #
@ -640,6 +648,7 @@ partition by system_time limit 1
insert into t1 values (null);
update t1 set f= 'foo';
update t1 set f= 'bar';
--echo # You see warning above ^
create or replace view v1 as select * from t1 for system_time all;
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
@ -830,22 +839,19 @@ create table t1 (x int) with system versioning
partition by system_time limit 1 (
partition p0 history,
partition p1 history,
partition p2 history, # p2 just disables warning about p1 partition full
partition pn current);
insert into t1 values (0);
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
select * from t1 partition (p0);
select * from t1 partition (p1);
select * from t1 partition (pn);
--echo # TRUNCATE TABLE deletes history and current data
--disable_warnings
truncate table t1;
--enable_warnings
select * from t1 partition (p0);
select * from t1 partition (p1);
select * from t1 partition (pn);
@ -853,8 +859,6 @@ select * from t1 partition (pn);
insert into t1 values (0);
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
--echo # TRUNCATE PARTITION ALL does the same
alter table t1 truncate partition all;
@ -865,8 +869,6 @@ select * from t1 partition (pn);
insert into t1 values (0);
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
--echo # TRUNCATE PARTITION deletes data from HISTORY partition
alter table t1 truncate partition p1;
@ -882,6 +884,202 @@ select * from t1 partition (pn);
drop table t1;
--echo #
--echo # MDEV-20077 Warning on full history partition is delayed until next DML statement
--echo #
--echo # DELETE
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_200;
--echo # p0 is filled with 100 records (no warnings):
delete from t1 where x <= 99;
--echo # p1 is filled with 1 + 100 records (warning is printed):
delete from t1 where x <= 100;
delete from t1;
--echo # You see warning above ^
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop table t1;
--echo # DELETE under LOCK TABLES
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_200;
lock tables t1 write;
--echo # (LOCK TABLES) p0 is filled with 100 records (no warnings):
delete from t1 where x <= 99;
--echo # (LOCK TABLES) p1 is filled with 1 + 100 records (warning is printed):
delete from t1 where x <= 100;
delete from t1;
--echo # You see warning above ^
unlock tables;
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop table t1;
--echo # DELETE multitable
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
create table t2 (y int);
insert into t1 select seq from seq_0_to_200;
insert into t2 select seq from seq_0_to_3;
delete t1, t2 from t1 join t2 where x < 50 and y = 0;
delete t1, t2 from t1 join t2 where x < 100 and y = 1;
delete t1, t2 from t1 join t2 where x < 150 and y = 2;
delete t1, t2 from t1 join t2;
--echo # You see warning above ^
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop table t1;
--echo # UDPATE
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_49;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
update t1 set x= x + 1;
--echo # You see warning above ^
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop tables t1, t2;
--echo # UPDATE multitable
create table t1 (x int) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
create table t2 (y int);
insert into t1 select seq from seq_0_to_49;
insert into t2 values (5);
update t1, t2 set x= x + 1;
update t1, t2 set x= x + 1;
update t1, t2 set x= x + 1;
update t1, t2 set x= x + 1;
--echo # You see warning above ^
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop tables t1, t2;
--echo # INSERT .. ON DUPLICATE KEY UPDATE (ODKU)
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_100;
delete from t1 where x <= 99;
insert into t1 values (100) on duplicate key update x= 400;
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop table t1;
--echo # INSERT .. SELECT .. ON DUPLICATE KEY UPDATE (ODKU)
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
create table t2 (y int);
insert into t2 values (100);
insert into t1 select seq from seq_0_to_100;
delete from t1 where x <= 99;
insert into t1 select * from t2 on duplicate key update x= 500;
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop tables t1, t2;
--echo # REPLACE
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_100;
delete from t1 where x < 99;
replace t1 values (100);
replace t1 values (100);
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop table t1;
--echo # LOAD DATA .. REPLACE
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_49;
select x into outfile 'MDEV-20077.data' from t1;
load data infile 'MDEV-20077.data' replace into table t1 (x);
load data infile 'MDEV-20077.data' replace into table t1 (x);
load data infile 'MDEV-20077.data' replace into table t1 (x);
load data infile 'MDEV-20077.data' replace into table t1 (x);
--echo # You see warning above ^
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop table t1;
--remove_file $datadir/test/MDEV-20077.data
--echo # REPLACE .. SELECT
create table t1 (x int primary key) with system versioning
partition by system_time limit 100 (
partition p0 history,
partition p1 history,
partition pn current);
insert into t1 select seq from seq_0_to_49;
replace t1 select * from t1;
replace t1 select * from t1;
replace t1 select * from t1;
replace t1 select * from t1;
--echo # You see warning above ^
select count(*) from t1 partition (p0);
select count(*) from t1 partition (p1);
drop table t1;
--echo # End of 10.3 tests
set global innodb_stats_persistent= @save_persistent;

17
sql/ha_partition.cc
View File

@ -4008,6 +4008,8 @@ int ha_partition::external_lock(THD *thd, int lock_type)
if (lock_type == F_UNLCK)
{
bitmap_clear_all(used_partitions);
if (m_lock_type == F_WRLCK && m_part_info->vers_require_hist_part(thd))
m_part_info->vers_check_limit(thd);
}
else
{
@ -4028,14 +4030,7 @@ int ha_partition::external_lock(THD *thd, int lock_type)
{
if (m_part_info->part_expr)
m_part_info->part_expr->walk(&Item::register_field_in_read_map, 1, 0);
if (m_part_info->part_type == VERSIONING_PARTITION &&
/* TODO: MDEV-20345 exclude more inapproriate commands like INSERT
These commands may be excluded because working history partition is needed
only for versioned DML. */
thd->lex->sql_command != SQLCOM_SELECT &&
thd->lex->sql_command != SQLCOM_INSERT_SELECT &&
thd->lex->sql_command != SQLCOM_ALTER_TABLE &&
(error= m_part_info->vers_set_hist_part(thd)))
if ((error= m_part_info->vers_set_hist_part(thd)))
goto err_handler;
}
DBUG_RETURN(0);
@ -4188,11 +4183,7 @@ int ha_partition::start_stmt(THD *thd, thr_lock_type lock_type)
case TL_WRITE_ONLY:
if (m_part_info->part_expr)
m_part_info->part_expr->walk(&Item::register_field_in_read_map, 1, 0);
if (m_part_info->part_type == VERSIONING_PARTITION &&
// TODO: MDEV-20345 (see above)
thd->lex->sql_command != SQLCOM_SELECT &&
thd->lex->sql_command != SQLCOM_INSERT_SELECT)
error= m_part_info->vers_set_hist_part(thd);
error= m_part_info->vers_set_hist_part(thd);
default:;
}
DBUG_RETURN(error);

53
sql/partition_info.cc
View File

@ -835,6 +835,9 @@ bool partition_info::has_unique_name(partition_element *element)
int partition_info::vers_set_hist_part(THD *thd)
{
if (!vers_require_hist_part(thd))
return 0;
if (table->pos_in_table_list &&
table->pos_in_table_list->partition_names)
{
@ -856,12 +859,8 @@ int partition_info::vers_set_hist_part(THD *thd)
vers_info->hist_part= next;
records= next_records;
}
if (records > vers_info->limit)
{
if (next == vers_info->now_part)
goto warn;
if (records >= vers_info->limit && next != vers_info->now_part)
vers_info->hist_part= next;
}
return 0;
}
@ -883,11 +882,45 @@ int partition_info::vers_set_hist_part(THD *thd)
}
}
return 0;
warn:
my_error(WARN_VERS_PART_FULL, MYF(ME_WARNING|ME_ERROR_LOG),
table->s->db.str, table->s->table_name.str,
vers_info->hist_part->partition_name);
return 0;
}
/**
Warn at the end of DML command if the last history partition is out of LIMIT.
*/
void partition_info::vers_check_limit(THD *thd)
{
if (!vers_info->limit ||
vers_info->hist_part->id + 1 < vers_info->now_part->id)
return;
/*
NOTE: at this point read_partitions bitmap is already pruned by DML code,
we have to set read bits for working history partition. We could use
bitmap_set_all(), but this is not optimal since there can be quite a number
of partitions.
*/
const uint32 sub_factor= num_subparts ? num_subparts : 1;
uint32 part_id= vers_info->hist_part->id * sub_factor;
const uint32 part_id_end= part_id + sub_factor;
DBUG_ASSERT(part_id_end <= num_parts * sub_factor);
for (; part_id < part_id_end; ++part_id)
bitmap_set_bit(&read_partitions, part_id);
ha_partition *hp= (ha_partition*)(table->file);
ha_rows hist_rows= hp->part_records(vers_info->hist_part);
if (hist_rows >= vers_info->limit)
{
push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
WARN_VERS_PART_FULL,
ER_THD(thd, WARN_VERS_PART_FULL),
table->s->db.str, table->s->table_name.str,
vers_info->hist_part->partition_name);
sql_print_warning(ER_THD(thd, WARN_VERS_PART_FULL),
table->s->db.str, table->s->table_name.str,
vers_info->hist_part->partition_name);
}
}

6
sql/partition_info.h
View File

@ -421,7 +421,13 @@ public:
vers_info->limit= limit;
return !limit;
}
bool vers_require_hist_part(THD *thd) const
{
return part_type == VERSIONING_PARTITION &&
thd->lex->vers_history_generating();
}
int vers_set_hist_part(THD *thd);
void vers_check_limit(THD *thd);
bool vers_setup_expression(THD *thd, uint32 alter_add= 0); /* Stage 1. */
partition_element *get_partition(uint part_id)
{

5
sql/sql_base.cc
View File

@ -750,7 +750,12 @@ void close_thread_tables(THD *thd)
DBUG_PRINT("tcache", ("table: '%s' query_id: %lu",
table->s->table_name.str, (ulong) table->query_id));
if (thd->locked_tables_mode)
{
if (table->part_info && table->part_info->vers_require_hist_part(thd) &&
!thd->stmt_arena->is_stmt_prepare())
table->part_info->vers_check_limit(thd);
table->vcol_cleanup_expr(thd);
}
if (thd->locked_tables_mode <= LTM_LOCK_TABLES ||
table->query_id == thd->query_id)
{

22
sql/sql_lex.h
View File

@ -4084,6 +4084,28 @@ public:
{
return create_info.vers_info;
}
/* The list of history-generating DML commands */
bool vers_history_generating() const
{
switch (sql_command)
{
case SQLCOM_DELETE:
return !vers_conditions.delete_history;
case SQLCOM_UPDATE:
case SQLCOM_UPDATE_MULTI:
case SQLCOM_DELETE_MULTI:
case SQLCOM_REPLACE:
case SQLCOM_REPLACE_SELECT:
return true;
case SQLCOM_INSERT:
case SQLCOM_INSERT_SELECT:
return duplicates == DUP_UPDATE;
case SQLCOM_LOAD:
return duplicates == DUP_REPLACE;
default:
return false;
}
}
sp_package *get_sp_package() const;
/**