mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-31 11:01:52 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions
mariadb/mysql-test/main/alter_table_locknone.result
Nikita Malyavin ab4bfad206 MDEV-16329 [5/5] ALTER ONLINE TABLE 
* Log rows in online_alter_binlog.
* Table online data is replicated within dedicated binlog file
* Cached data is written on commit.
* Versioning is fully supported.
* Works both wit and without binlog enabled.

* For now savepoints setup is forbidden while ONLINE ALTER goes on.
  Extra support is required. We can simply log the SAVEPOINT query events
  and replicate them together with row events. But it's not implemented
  for now.

* Cache flipping:

  We want to care for the possible bottleneck in the online alter binlog
  reading/writing in advance.

  IO_CACHE does not provide anything better that sequential access,
  besides, only a single write is mutex-protected, which is not suitable,
  since we should write a transaction atomically.

  To solve this, a special layer on top Event_log is implemented.
  There are two IO_CACHE files underneath: one for reading, and one for
  writing.

  Once the read cache is empty, an exclusive lock is acquired (we can wait
  for a currently active transaction finish writing), and flip() is emitted,
  i.e. the write cache is reopened for read, and the read cache is emptied,
  and reopened for writing.

  This reminds a buffer flip that happens in accelerated graphics
  (DirectX/OpenGL/etc).

  Cache_flip_event_log is considered non-blocking for a single reader and a
  single writer in this sense, with the only lock held by reader during flip.

  An alternative approach by implementing a fair concurrent circular buffer
  is described in MDEV-24676.

* Cache managers:
  We have two cache sinks: statement and transactional.
  It is important that the changes are first cached per-statement and
  per-transaction.
  If a statement fails, then only statement data is rolled back. The
  transaction moves along, however.

  Turns out, there's no guarantee that TABLE well persist in
  thd->open_tables to the transaction commit moment.
  If an error occurs, tables from statement are purged.
  Therefore, we can't store te caches in TABLE. Ideally, it should be
  handlerton, but we cut the corner and store it in THD in a list.
2023-08-15 10:16:11 +02:00

270 lines
11 KiB
Text
Raw Blame History

create table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b')) engine=myisam;
insert into t1 (a) values (1),(2),(3);
alter online table t1 modify b int default 5, alter c set default 'X';
alter online table t1 change b new_name int;
alter online table t1 modify e enum('a','b','c');
alter online table t1 comment "new comment";
alter table t1 add constraint q check (a > 0);
alter online table t1 drop constraint q;
alter online table t1 algorithm=INPLACE, lock=NONE;
alter online table t1;
alter table t1 algorithm=INPLACE;
alter table t1 lock=NONE;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`new_name` int(11) DEFAULT NULL,
`c` varchar(80) DEFAULT 'X',
`e` enum('a','b','c') DEFAULT NULL,
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci COMMENT='new comment'
drop table t1;
create temporary table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b'));
insert into t1 (a) values (1),(2),(3);
alter online table t1 modify b int default 5, alter c set default 'X';
alter online table t1 change b new_name int;
alter online table t1 modify e enum('a','b','c');
alter online table t1 comment "new comment";
alter online table t1 rename to t2;
show create table t2;
Table Create Table
t2 CREATE TEMPORARY TABLE `t2` (
`a` int(11) NOT NULL,
`new_name` int(11) DEFAULT NULL,
`c` varchar(80) DEFAULT 'X',
`e` enum('a','b','c') DEFAULT NULL,
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci COMMENT='new comment'
drop table t2;
create table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b')) engine=aria;
insert into t1 (a) values (1),(2),(3);
alter online table t1 modify b int default 5;
alter online table t1 change b new_name int;
alter online table t1 modify e enum('a','b','c');
alter online table t1 comment "new comment";
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`new_name` int(11) DEFAULT NULL,
`c` varchar(80) DEFAULT NULL,
`e` enum('a','b','c') DEFAULT NULL,
PRIMARY KEY (`a`)
) ENGINE=Aria DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci PAGE_CHECKSUM=1 COMMENT='new comment'
alter online table t1 page_checksum=1;
alter online table t1 page_checksum=0;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
drop table t1;
create table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b'));
insert into t1 (a) values (1),(2),(3);
alter online table t1 drop column b, add b int;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 modify b bigint;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 modify e enum('c','a','b');
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 modify c varchar(50);
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 modify c varchar(100);
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 add f int;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 engine=memory;
alter online table t1 rename to t2;
ERROR 0A000: LOCK=NONE/SHARED is not supported for this operation. Try LOCK=EXCLUSIVE
alter online table t1 checksum=1;
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter online table t1 add constraint check (b > 0);
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=SHARED
alter table t1 engine=innodb;
alter table t1 add index (b);
alter online table t1 add index c (c);
alter online table t1 drop index b;
alter online table t1 comment "new comment";
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` int(11) DEFAULT NULL,
`c` varchar(80) DEFAULT NULL,
`e` enum('a','b') DEFAULT NULL,
PRIMARY KEY (`a`),
KEY `c` (`c`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci COMMENT='new comment'
drop table t1;
create temporary table t1 (a int not null primary key, b int, c varchar(80), e enum('a','b'));
insert into t1 (a) values (1),(2),(3);
alter online table t1 drop column b, add b int;
alter online table t1 modify b bigint;
alter online table t1 modify e enum('c','a','b');
alter online table t1 modify c varchar(50);
alter online table t1 modify c varchar(100);
alter online table t1 add f int;
alter online table t1 engine=memory;
alter table t1 engine=innodb;
alter table t1 add index (b);
alter online table t1 add index c (c);
alter online table t1 drop index b;
drop table t1;
create table t1 (a int not null primary key, b int, c varchar(80));
create table t2 (a int not null primary key, b int, c varchar(80));
create table t3 (a int not null primary key, b int, c varchar(80)) engine=merge UNION=(t1);
alter online table t3 union=(t1,t2);
ERROR 0A000: LOCK=NONE is not supported for this operation. Try LOCK=EXCLUSIVE
drop table t1,t2,t3;
create table t1 (i int) partition by hash(i) partitions 2;
alter online table t1 comment 'test';
drop table t1;
create table t1 (a int);
alter online table t1 modify a int comment 'test';
drop table t1;
create table t1 (a int) engine=innodb;
alter online table t1 modify a int comment 'test';
drop table t1;
create table t1 (a int) partition by hash(a) partitions 2;
alter online table t1 modify a int comment 'test';
drop table t1;
#
# MDEV-8948 ALTER ... INPLACE does work for BINARY, BLOB
#
CREATE TABLE t1 (a BINARY(10));
ALTER TABLE t1 MODIFY a BINARY(10), ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a VARBINARY(10));
ALTER TABLE t1 MODIFY a VARBINARY(10), ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a TINYBLOB);
ALTER TABLE t1 MODIFY a TINYBLOB, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMBLOB);
ALTER TABLE t1 MODIFY a MEDIUMBLOB, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a BLOB);
ALTER TABLE t1 MODIFY a BLOB, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a LONGBLOB);
ALTER TABLE t1 MODIFY a LONGBLOB, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10));
ALTER TABLE t1 MODIFY a CHAR(10), ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(10));
ALTER TABLE t1 MODIFY a VARCHAR(10), ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a TINYTEXT);
ALTER TABLE t1 MODIFY a TINYTEXT, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMTEXT);
ALTER TABLE t1 MODIFY a MEDIUMTEXT, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a TEXT);
ALTER TABLE t1 MODIFY a TEXT, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a LONGTEXT);
ALTER TABLE t1 MODIFY a LONGTEXT, ALGORITHM=INPLACE;
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10));
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(10));
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TINYTEXT);
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMTEXT);
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TEXT);
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a LONGTEXT);
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_bin, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10) COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(10) COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TINYTEXT COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMTEXT COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TEXT COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a LONGTEXT COLLATE latin1_bin);
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a CHAR(10) COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a CHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(10) COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TINYTEXT COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a TINYTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a MEDIUMTEXT COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a MEDIUMTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a TEXT COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a TEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
CREATE TABLE t1 (a LONGTEXT COLLATE latin1_general_ci);
ALTER TABLE t1 MODIFY a LONGTEXT COLLATE latin1_swedish_ci, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
DROP TABLE t1;
select @@global.delay_key_write;
@@global.delay_key_write
ON
create table t1 (a int, b int, key(b));
flush tables;
flush status;
show status like 'Feature_delay_key_write';
Variable_name Value
Feature_delay_key_write 0
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
Variable_name Value
Feature_delay_key_write 0
alter online table t1 delay_key_write=1;
show status like 'Feature_delay_key_write';
Variable_name Value
Feature_delay_key_write 0
flush tables;
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
Variable_name Value
Feature_delay_key_write 1
alter online table t1 delay_key_write=0;
show status like 'Feature_delay_key_write';
Variable_name Value
Feature_delay_key_write 1
flush tables;
insert t1 values (1,2),(2,3),(3,4);
show status like 'Feature_delay_key_write';
Variable_name Value
Feature_delay_key_write 1
drop table t1;
Reference in a new issue View git blame Copy permalink