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ded27d28968e6e47e901b9472001550ec3dbfdd1
mariadb/mysql-test/suite/innodb/r/innodb-table-online.result
Marko Mäkelä 1bd681c8b3 MDEV-25506 (3 of 3): Do not delete .ibd files before commit 
This is a complete rewrite of DROP TABLE, also as part of other DDL,
such as ALTER TABLE, CREATE TABLE...SELECT, TRUNCATE TABLE.

The background DROP TABLE queue hack is removed.
If a transaction needs to drop and create a table by the same name
(like TRUNCATE TABLE does), it must first rename the table to an
internal #sql-ib name. No committed version of the data dictionary
will include any #sql-ib tables, because whenever a transaction
renames a table to a #sql-ib name, it will also drop that table.
Either the rename will be rolled back, or the drop will be committed.

Data files will be unlinked after the transaction has been committed
and a FILE_RENAME record has been durably written. The file will
actually be deleted when the detached file handle returned by
fil_delete_tablespace() will be closed, after the latches have been
released. It is possible that a purge of the delete of the SYS_INDEXES
record for the clustered index will execute fil_delete_tablespace()
concurrently with the DDL transaction. In that case, the thread that
arrives later will wait for the other thread to finish.

HTON_TRUNCATE_REQUIRES_EXCLUSIVE_USE: A new handler flag.
ha_innobase::truncate() now requires that all other references to
the table be released in advance. This was implemented by Monty.

ha_innobase::delete_table(): If CREATE TABLE..SELECT is detected,
we will "hijack" the current transaction, drop the table in
the current transaction and commit the current transaction.
This essentially fixes MDEV-21602. There is a FIXME comment about
making the check less failure-prone.

ha_innobase::truncate(), ha_innobase::delete_table():
Implement a fast path for temporary tables. We will no longer allow
temporary tables to use the adaptive hash index.

dict_table_t::mdl_name: The original table name for the purpose of
acquiring MDL in purge, to prevent a race condition between a
DDL transaction that is dropping a table, and purge processing
undo log records of DML that had executed before the DDL operation.
For #sql-backup- tables during ALTER TABLE...ALGORITHM=COPY, the
dict_table_t::mdl_name will differ from dict_table_t::name.

dict_table_t::parse_name(): Use mdl_name instead of name.

dict_table_rename_in_cache(): Update mdl_name.

For the internal FTS_ tables of FULLTEXT INDEX, purge would
acquire MDL on the FTS_ table name, but not on the main table,
and therefore it would be able to run concurrently with a
DDL transaction that is dropping the table. Previously, the
DROP TABLE queue hack prevented a race between purge and DDL.
For now, we introduce purge_sys.stop_FTS() to prevent purge from
opening any table, while a DDL transaction that may drop FTS_
tables is in progress. The function fts_lock_table(), which will
be invoked before the dictionary is locked, will wait for
purge to release any table handles.

trx_t::drop_table_statistics(): Drop statistics for the table.
This replaces dict_stats_drop_index(). We will drop or rename
persistent statistics atomically as part of DDL transactions.
On lock conflict for dropping statistics, we will fail instantly
with DB_LOCK_WAIT_TIMEOUT, because we will be holding the
exclusive data dictionary latch.

trx_t::commit_cleanup(): Separated from trx_t::commit_in_memory().
Relax an assertion around fts_commit() and allow DB_LOCK_WAIT_TIMEOUT
in addition to DB_DUPLICATE_KEY. The call to fts_commit() is
entirely misplaced here and may obviously break the consistency
of transactions that affect FULLTEXT INDEX. It needs to be fixed
separately.

dict_table_t::n_foreign_key_checks_running: Remove (MDEV-21175).
The counter was a work-around for missing meta-data locking (MDL)
on the SQL layer, and not really needed in MariaDB.

ER_TABLE_IN_FK_CHECK: Replaced with ER_UNUSED_28.

HA_ERR_TABLE_IN_FK_CHECK: Remove.

row_ins_check_foreign_constraints(): Do not acquire
dict_sys.latch either. The SQL-layer MDL will protect us.

This was reviewed by Thirunarayanan Balathandayuthapani
and tested by Matthias Leich.
2021-06-09 17:06:07 +03:00

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call mtr.add_suppression("InnoDB: Warning: Small buffer pool size");
call mtr.add_suppression("InnoDB: Error: table 'test/t1'");
call mtr.add_suppression("MariaDB is trying to open a table handle but the .ibd file for");
SET @global_innodb_file_per_table_orig = @@global.innodb_file_per_table;
SET GLOBAL innodb_file_per_table = on;
CREATE TABLE t1 (c1 INT PRIMARY KEY, c2 INT NOT NULL, c3 CHAR(255) NOT NULL)
ENGINE = InnoDB;
INSERT INTO t1 VALUES (1,1,''), (2,2,''), (3,3,''), (4,4,''), (5,5,'');
SET GLOBAL innodb_monitor_enable = module_ddl;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 0
ddl_pending_alter_table 0
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 0
SET DEBUG_SYNC = 'RESET';
SET DEBUG_SYNC = 'write_row_noreplace SIGNAL have_handle WAIT_FOR go_ahead';
INSERT INTO t1 VALUES(1,2,3);
connect con1,localhost,root,,;
SET DEBUG_SYNC = 'now WAIT_FOR have_handle';
SET lock_wait_timeout = 1;
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SET DEBUG_SYNC = 'now SIGNAL go_ahead';
connection default;
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 0
ddl_pending_alter_table 0
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 0
connection con1;
SET @saved_debug_dbug = @@SESSION.debug_dbug;
SET DEBUG_DBUG = '+d,innodb_OOM_prepare_inplace_alter';
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;
ERROR HY000: Out of memory.
SET SESSION DEBUG = @saved_debug_dbug;
Warnings:
Warning 1287 '@@debug' is deprecated and will be removed in a future release. Please use '@@debug_dbug' instead
SET SESSION DEBUG = '+d,innodb_OOM_inplace_alter';
Warnings:
Warning 1287 '@@debug' is deprecated and will be removed in a future release. Please use '@@debug_dbug' instead
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;
ERROR HY000: Out of memory.
SET SESSION DEBUG = @saved_debug_dbug;
Warnings:
Warning 1287 '@@debug' is deprecated and will be removed in a future release. Please use '@@debug_dbug' instead
ALTER TABLE t1 ROW_FORMAT=REDUNDANT, ALGORITHM=INPLACE, LOCK=NONE;
connection default;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) NOT NULL,
`c2` int(11) NOT NULL,
`c3` char(255) NOT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT
BEGIN;
INSERT INTO t1 VALUES(7,4,2);
connection con1;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL scanned WAIT_FOR insert_done';
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection default;
COMMIT;
connection con1;
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2);
ERROR 23000: Duplicate entry '4' for key 'c2'
connection default;
DELETE FROM t1 WHERE c1 = 7;
connection con1;
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2), ROW_FORMAT=COMPACT,
LOCK = SHARED, ALGORITHM = INPLACE;
ALTER TABLE t1 ADD UNIQUE INDEX(c2),
LOCK = EXCLUSIVE, ALGORITHM = INPLACE;
Warnings:
Note 1831 Duplicate index `c2_2`. This is deprecated and will be disallowed in a future release
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) NOT NULL,
`c2` int(11) NOT NULL,
`c3` char(255) NOT NULL,
UNIQUE KEY `c2` (`c2`),
UNIQUE KEY `c2_2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
ALTER TABLE t1 DROP INDEX c2, ADD PRIMARY KEY(c1);
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR scanned';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 1
ddl_pending_alter_table 1
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 0
BEGIN;
INSERT INTO t1 VALUES(4,7,2);
SET DEBUG_SYNC = 'now SIGNAL insert_done';
connection con1;
ERROR 23000: Duplicate entry '4' for key 'PRIMARY'
connection default;
ROLLBACK;
connection con1;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) NOT NULL,
`c2` int(11) NOT NULL,
`c3` char(255) NOT NULL,
UNIQUE KEY `c2` (`c2`),
UNIQUE KEY `c2_2` (`c2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
ALTER TABLE t1 DROP PRIMARY KEY, ADD UNIQUE INDEX(c2), ALGORITHM = INPLACE;
ERROR 42000: Can't DROP INDEX `PRIMARY`; check that it exists
ALTER TABLE t1 DROP INDEX c2, ADD PRIMARY KEY(c1), ALGORITHM = INPLACE;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 0
ddl_pending_alter_table 0
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 0
connection default;
INSERT INTO t1 VALUES(6,3,1);
ERROR 23000: Duplicate entry '3' for key 'c2_2'
INSERT INTO t1 VALUES(7,4,2);
ERROR 23000: Duplicate entry '4' for key 'c2_2'
DROP INDEX c2_2 ON t1;
BEGIN;
INSERT INTO t1 VALUES(7,4,2);
ROLLBACK;
connection con1;
KILL QUERY @id;
ERROR 70100: Query execution was interrupted
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt WAIT_FOR dml_done';
SET DEBUG_SYNC = 'row_log_table_apply2_before SIGNAL applied WAIT_FOR kill_done';
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 1
ddl_pending_alter_table 1
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 0
BEGIN;
INSERT INTO t1 VALUES(7,4,2);
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL dml_done WAIT_FOR applied';
KILL QUERY @id;
SET DEBUG_SYNC = 'now SIGNAL kill_done';
connection con1;
ERROR 70100: Query execution was interrupted
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 0
ddl_pending_alter_table 0
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 0
connection default;
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 SELECT 5 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 10 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 20 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 40 + c1, c2, c3 FROM t1;
EXPLAIN SELECT COUNT(*) FROM t1 WHERE c2 > 3;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL ROWS Using where
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
SET @merge_encrypt_0=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_merge_blocks_encrypted');
SET @merge_decrypt_0=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_merge_blocks_decrypted');
SET @rowlog_encrypt_0=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_encrypted');
connection con1;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) NOT NULL,
`c2` int(11) NOT NULL,
`c3` char(255) NOT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt2 WAIT_FOR dml2_done';
SET lock_wait_timeout = 10;
ALTER TABLE t1 ROW_FORMAT=COMPACT
PAGE_COMPRESSED = YES PAGE_COMPRESSION_LEVEL = 1, ALGORITHM = INPLACE;
connection default;
INSERT INTO t1 SELECT 80 + c1, c2, c3 FROM t1;
INSERT INTO t1 SELECT 160 + c1, c2, c3 FROM t1;
UPDATE t1 SET c2 = c2 + 1;
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt2';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 1
ddl_pending_alter_table 1
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 1
BEGIN;
DELETE FROM t1;
ROLLBACK;
UPDATE t1 SET c2 = c2 + 1;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
BEGIN;
DELETE FROM t1;
ROLLBACK;
UPDATE t1 SET c2 = c2 + 1;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
BEGIN;
DELETE FROM t1;
ROLLBACK;
UPDATE t1 SET c2 = c2 + 1;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 1
ddl_pending_alter_table 1
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 1
SET @merge_encrypt_1=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_merge_blocks_encrypted');
SET @merge_decrypt_1=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_merge_blocks_decrypted');
SET @rowlog_encrypt_1=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_encrypted');
SELECT
(@merge_encrypt_1-@merge_encrypt_0)-
(@merge_decrypt_1-@merge_decrypt_0) as sort_balance,
@merge_encrypt_1>@merge_encrypt_0, @merge_decrypt_1>@merge_decrypt_0,
@rowlog_encrypt_1>@rowlog_encrypt_0;
sort_balance @merge_encrypt_1>@merge_encrypt_0 @merge_decrypt_1>@merge_decrypt_0 @rowlog_encrypt_1>@rowlog_encrypt_0
0 0 0 0
SET DEBUG_SYNC = 'now SIGNAL dml2_done';
connection con1;
ERROR HY000: Creating index 'PRIMARY' required more than 'innodb_online_alter_log_max_size' bytes of modification log. Please try again
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 0
ddl_pending_alter_table 0
ddl_sort_file_alter_table 0
ddl_log_file_alter_table 1
SET @merge_encrypt_1=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_merge_blocks_encrypted');
SET @merge_decrypt_1=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_merge_blocks_decrypted');
SET @rowlog_encrypt_1=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_encrypted');
SET @rowlog_decrypt_1=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_decrypted');
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL rebuilt3 WAIT_FOR dml3_done';
ALTER TABLE t1 ADD PRIMARY KEY(c22f), CHANGE c2 c22f INT;
ERROR 42000: Multiple primary key defined
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(c22f), CHANGE c2 c22f INT;
ERROR 23000: Duplicate entry '5' for key 'PRIMARY'
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY(c22f,c1,c4(5)),
CHANGE c2 c22f INT, CHANGE c3 c3 CHAR(255) NULL, CHANGE c1 c1 INT AFTER c22f,
ADD COLUMN c4 VARCHAR(6) DEFAULT 'Online', LOCK=NONE;
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR rebuilt3';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 1
ddl_pending_alter_table 1
ddl_sort_file_alter_table 2
ddl_log_file_alter_table 1
BEGIN;
INSERT INTO t1 SELECT 320 + c1, c2, c3 FROM t1 WHERE c1 > 240;
DELETE FROM t1 WHERE c1 > 320;
ROLLBACK;
BEGIN;
UPDATE t1 SET c2 = c2 + 1;
DELETE FROM t1;
ROLLBACK;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 1
ddl_pending_alter_table 1
ddl_sort_file_alter_table 2
ddl_log_file_alter_table 2
SET DEBUG_SYNC = 'now SIGNAL dml3_done';
connection con1;
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 0
ddl_pending_alter_table 0
ddl_sort_file_alter_table 2
ddl_log_file_alter_table 2
SELECT COUNT(c22f) FROM t1;
COUNT(c22f)
320
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
SET @merge_encrypt_2=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_merge_blocks_encrypted');
SET @merge_decrypt_2=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_merge_blocks_decrypted');
SET @rowlog_encrypt_2=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_encrypted');
SET @rowlog_decrypt_2=
(SELECT variable_value FROM information_schema.global_status
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_decrypted');
SELECT
(@merge_encrypt_2-@merge_encrypt_1)-
(@merge_decrypt_2-@merge_decrypt_1) as sort_balance,
(@rowlog_encrypt_2-@rowlog_encrypt_1)-
(@rowlog_decrypt_2-@rowlog_decrypt_1) as log_balance;
sort_balance log_balance
0 0
SELECT
@merge_encrypt_2-@merge_encrypt_1>0 as sort_encrypted,
@merge_decrypt_2-@merge_decrypt_1>0 as sort_decrypted,
@rowlog_encrypt_2-@rowlog_encrypt_1>0 as log_encrypted,
@rowlog_decrypt_2-@rowlog_decrypt_1>0 as log_decrypted;
sort_encrypted sort_decrypted log_encrypted log_decrypted
0 0 0 0
ALTER TABLE t1 DROP PRIMARY KEY, ADD PRIMARY KEY c3p5(c3(5));
ERROR 23000: Duplicate entry '' for key 'PRIMARY'
UPDATE t1 SET c3 = NULL WHERE c3 = '';
SET lock_wait_timeout = 1;
ALTER TABLE t1 DROP COLUMN c22f, ADD PRIMARY KEY c3p5(c3(5));
ERROR 42000: Key column 'c22f' doesn't exist in table
ALTER IGNORE TABLE t1 DROP COLUMN c22f, DROP PRIMARY KEY, ADD PRIMARY KEY c3p5(c3(5)),
ALGORITHM = INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported. Reason: Creating unique indexes with IGNORE requires COPY algorithm to remove duplicate rows. Try ALGORITHM=COPY
UPDATE t1 SET c3=LEFT(CONCAT(c1,REPEAT('foo',c1)),255) WHERE c3 IS NULL;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL c3p5_created0 WAIT_FOR ins_done0';
ALTER TABLE t1 MODIFY c3 CHAR(255) NOT NULL, DROP COLUMN c22f,
DROP PRIMARY KEY, ADD PRIMARY KEY(c1,c4(5)),
ADD COLUMN c5 CHAR(5) DEFAULT 'tired' FIRST;
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR c3p5_created0';
BEGIN;
INSERT INTO t1 VALUES(347,33101,'Pikku kakkosen posti','YLETV2');
INSERT INTO t1 VALUES(33101,347,NULL,'');
SET DEBUG_SYNC = 'now SIGNAL ins_done0';
connection con1;
ERROR 01000: Data truncated for column 'c3' at row 323
connection default;
ROLLBACK;
connection con1;
ALTER TABLE t1 MODIFY c3 CHAR(255) NOT NULL;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL c3p5_created WAIT_FOR ins_done';
ALTER TABLE t1 DROP PRIMARY KEY, DROP COLUMN c22f,
ADD COLUMN c6 VARCHAR(1000) DEFAULT
'I love tracking down hard-to-reproduce bugs.',
ADD PRIMARY KEY c3p5(c3(5), c6(2));
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR c3p5_created';
SET DEBUG_SYNC = 'ib_after_row_insert SIGNAL ins_done WAIT_FOR ddl_timed_out';
INSERT INTO t1 VALUES(347,33101,NULL,'');
ERROR 23000: Column 'c3' cannot be null
INSERT INTO t1 VALUES(347,33101,'Pikku kakkosen posti','');
connection con1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SET DEBUG_SYNC = 'now SIGNAL ddl_timed_out';
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
name count
ddl_background_drop_indexes 0
ddl_online_create_index 0
ddl_pending_alter_table 0
ddl_sort_file_alter_table 6
ddl_log_file_alter_table 2
connection default;
SELECT COUNT(*) FROM t1;
COUNT(*)
321
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
SELECT * FROM t1 LIMIT 10;
c22f c1 c3 c4
5 1 1foo Online
5 6 6foofoofoofoofoofoo Online
5 11 11foofoofoofoofoofoofoofoofoofoofoo Online
5 16 16foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo Online
5 21 21foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo Online
5 26 26foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo Online
5 31 31foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo Online
5 36 36foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo Online
5 41 41foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo Online
5 46 46foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo Online
connection con1;
ALTER TABLE t1 DISCARD TABLESPACE;
connection default;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c22f` int(11) NOT NULL,
`c1` int(11) NOT NULL,
`c3` char(255) NOT NULL,
`c4` varchar(6) NOT NULL DEFAULT 'Online',
PRIMARY KEY (`c22f`,`c1`,`c4`(5))
) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT
SET GLOBAL innodb_monitor_disable = module_ddl;
DROP TABLE t1;
CREATE TABLE t1 (a INT PRIMARY KEY, b blob) ENGINE=InnoDB;
connection con1;
SET DEBUG_SYNC = 'row_log_table_apply1_before SIGNAL created WAIT_FOR ins';
ALTER TABLE t1 FORCE;
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR created';
BEGIN;
INSERT INTO t1 VALUES(1, repeat('a', 10000));
ROLLBACK;
SET DEBUG_SYNC = 'now SIGNAL ins';
connection con1;
disconnect con1;
connection default;
SELECT * FROM t1;
a b
DROP TABLE t1;
SET DEBUG_SYNC = 'RESET';
SET GLOBAL innodb_file_per_table = @global_innodb_file_per_table_orig;
SET GLOBAL innodb_monitor_enable = default;
SET GLOBAL innodb_monitor_disable = default;
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