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mariadb/mysql-test/suite/innodb_zip/r/restart.result
Marko Mäkelä 055a3334ad MDEV-13564 Mariabackup does not work with TRUNCATE
Implement undo tablespace truncation via normal redo logging.

Implement TRUNCATE TABLE as a combination of RENAME to #sql-ib name,
CREATE, and DROP.

Note: Orphan #sql-ib*.ibd may be left behind if MariaDB Server 10.2
is killed before the DROP operation is committed. If MariaDB Server 10.2
is killed during TRUNCATE, it is also possible that the old table
was renamed to #sql-ib*.ibd but the data dictionary will refer to the
table using the original name.

In MariaDB Server 10.3, RENAME inside InnoDB is transactional,
and #sql-* tables will be dropped on startup. So, this new TRUNCATE
will be fully crash-safe in 10.3.

ha_mroonga::wrapper_truncate(): Pass table options to the underlying
storage engine, now that ha_innobase::truncate() will need them.

rpl_slave_state::truncate_state_table(): Before truncating
mysql.gtid_slave_pos, evict any cached table handles from
the table definition cache, so that there will be no stale
references to the old table after truncating.

== TRUNCATE TABLE ==

WL#6501 in MySQL 5.7 introduced separate log files for implementing
atomic and crash-safe TRUNCATE TABLE, instead of using the InnoDB
undo and redo log. Some convoluted logic was added to the InnoDB
crash recovery, and some extra synchronization (including a redo log
checkpoint) was introduced to make this work. This synchronization
has caused performance problems and race conditions, and the extra
log files cannot be copied or applied by external backup programs.

In order to support crash-upgrade from MariaDB 10.2, we will keep
the logic for parsing and applying the extra log files, but we will
no longer generate those files in TRUNCATE TABLE.

A prerequisite for crash-safe TRUNCATE is a crash-safe RENAME TABLE
(with full redo and undo logging and proper rollback). This will
be implemented in MDEV-14717.

ha_innobase::truncate(): Invoke RENAME, create(), delete_table().
Because RENAME cannot be fully rolled back before MariaDB 10.3
due to missing undo logging, add some explicit rename-back in
case the operation fails.

ha_innobase::delete(): Introduce a variant that takes sqlcom as
a parameter. In TRUNCATE TABLE, we do not want to touch any
FOREIGN KEY constraints.

ha_innobase::create(): Add the parameters file_per_table, trx.
In TRUNCATE, the new table must be created in the same transaction
that renames the old table.

create_table_info_t::create_table_info_t(): Add the parameters
file_per_table, trx.

row_drop_table_for_mysql(): Replace a bool parameter with sqlcom.

row_drop_table_after_create_fail(): New function, wrapping
row_drop_table_for_mysql().

dict_truncate_index_tree_in_mem(), fil_truncate_tablespace(),
fil_prepare_for_truncate(), fil_reinit_space_header_for_table(),
row_truncate_table_for_mysql(), TruncateLogger,
row_truncate_prepare(), row_truncate_rollback(),
row_truncate_complete(), row_truncate_fts(),
row_truncate_update_system_tables(),
row_truncate_foreign_key_checks(), row_truncate_sanity_checks():
Remove.

row_upd_check_references_constraints(): Remove a check for
TRUNCATE, now that the table is no longer truncated in place.

The new test innodb.truncate_foreign uses DEBUG_SYNC to cover some
race-condition like scenarios. The test innodb-innodb.truncate does
not use any synchronization.

We add a redo log subformat to indicate backup-friendly format.
MariaDB 10.4 will remove support for the old TRUNCATE logging,
so crash-upgrade from old 10.2 or 10.3 to 10.4 will involve
limitations.

== Undo tablespace truncation ==

MySQL 5.7 implements undo tablespace truncation. It is only
possible when innodb_undo_tablespaces is set to at least 2.
The logging is implemented similar to the WL#6501 TRUNCATE,
that is, using separate log files and a redo log checkpoint.

We can simply implement undo tablespace truncation within
a single mini-transaction that reinitializes the undo log
tablespace file. Unfortunately, due to the redo log format
of some operations, currently, the total redo log written by
undo tablespace truncation will be more than the combined size
of the truncated undo tablespace. It should be acceptable
to have a little more than 1 megabyte of log in a single
mini-transaction. This will be fixed in MDEV-17138 in
MariaDB Server 10.4.

recv_sys_t: Add truncated_undo_spaces[] to remember for which undo
tablespaces a MLOG_FILE_CREATE2 record was seen.

namespace undo: Remove some unnecessary declarations.

fil_space_t::is_being_truncated: Document that this flag now
only applies to undo tablespaces. Remove some references.

fil_space_t::is_stopping(): Do not refer to is_being_truncated.
This check is for tablespaces of tables. Potentially used
tablespaces are never truncated any more.

buf_dblwr_process(): Suppress the out-of-bounds warning
for undo tablespaces.

fil_truncate_log(): Write a MLOG_FILE_CREATE2 with a nonzero
page number (new size of the tablespace in pages) to inform
crash recovery that the undo tablespace size has been reduced.

fil_op_write_log(): Relax assertions, so that MLOG_FILE_CREATE2
can be written for undo tablespaces (without .ibd file suffix)
for a nonzero page number.

os_file_truncate(): Add the parameter allow_shrink=false
so that undo tablespaces can actually be shrunk using this function.

fil_name_parse(): For undo tablespace truncation,
buffer MLOG_FILE_CREATE2 in truncated_undo_spaces[].

recv_read_in_area(): Avoid reading pages for which no redo log
records remain buffered, after recv_addr_trim() removed them.

trx_rseg_header_create(): Add a FIXME comment that we could write
much less redo log.

trx_undo_truncate_tablespace(): Reinitialize the undo tablespace
in a single mini-transaction, which will be flushed to the redo log
before the file size is trimmed.

recv_addr_trim(): Discard any redo logs for pages that were
logged after the new end of a file, before the truncation LSN.
If the rec_list becomes empty, reduce n_addrs. After removing
any affected records, actually truncate the file.

recv_apply_hashed_log_recs(): Invoke recv_addr_trim() right before
applying any log records. The undo tablespace files must be open
at this point.

buf_flush_or_remove_pages(), buf_flush_dirty_pages(),
buf_LRU_flush_or_remove_pages(): Add a parameter for specifying
the number of the first page to flush or remove (default 0).

trx_purge_initiate_truncate(): Remove the log checkpoints, the
extra logging, and some unnecessary crash points. Merge the code
from trx_undo_truncate_tablespace(). First, flush all to-be-discarded
pages (beyond the new end of the file), then trim the space->size
to make the page allocation deterministic. At the only remaining
crash injection point, flush the redo log, so that the recovery
can be tested.
2018-09-07 22:10:02 +03:00

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SET default_storage_engine=InnoDB;
#
# A series of tests to make sure tables are opened after restart.
# Bug#13357607 Compressed file-per-table tablespaces fail to open
#
set global innodb_file_per_table=on;
#
# Create and insert records into a REDUNDANT row formatted table.
#
CREATE TABLE t1_restart(c1 DOUBLE AUTO_INCREMENT KEY, c2 CHAR(10), c3 VARCHAR(100), c4 DATE, c5 TEXT)
ROW_FORMAT=REDUNDANT ENGINE=InnoDB;
INSERT INTO t1_restart VALUES (1000000000, 'MySQL', 'InnoDB', '2011-11-11', 'Read this after reboot');
INSERT INTO t1_restart (SELECT 0, c2, c3, c4, c5 FROM t1_restart);
INSERT INTO t1_restart (SELECT 0, c2, c3, c4, c5 FROM t1_restart);
INSERT INTO t1_restart (SELECT 0, c2, c3, c4, c5 FROM t1_restart);
INSERT INTO t1_restart (SELECT 0, c2, c3, c4, c5 FROM t1_restart);
SHOW CREATE TABLE t1_restart;
Table Create Table
t1_restart CREATE TABLE `t1_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000027 DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT
SELECT count(*) FROM t1_restart;
count(*)
16
#
# Create and insert records into a COMPACT row formatted table.
#
CREATE TABLE t2_restart(c1 DOUBLE AUTO_INCREMENT KEY, c2 CHAR(10), c3 VARCHAR(100), c4 DATE, c5 TEXT)
ROW_FORMAT=COMPACT ENGINE=InnoDB;
INSERT INTO t2_restart VALUES (1000000000, 'MySQL', 'InnoDB', '2011-11-11', 'Read this after reboot');
INSERT INTO t2_restart (SELECT 0, c2, c3, c4, c5 FROM t2_restart);
INSERT INTO t2_restart (SELECT 0, c2, c3, c4, c5 FROM t2_restart);
INSERT INTO t2_restart (SELECT 0, c2, c3, c4, c5 FROM t2_restart);
INSERT INTO t2_restart (SELECT 0, c2, c3, c4, c5 FROM t2_restart);
SHOW CREATE TABLE t2_restart;
Table Create Table
t2_restart CREATE TABLE `t2_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000027 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
SELECT count(*) FROM t2_restart;
count(*)
16
#
# Create and insert records into a COMPRESSED row formatted table.
#
CREATE TABLE t3_restart(c1 DOUBLE AUTO_INCREMENT KEY, c2 CHAR(10), c3 VARCHAR(100), c4 DATE, c5 TEXT)
ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2 ENGINE=InnoDB;
INSERT INTO t3_restart VALUES (1000000000, 'MySQL', 'InnoDB', '2011-11-11', 'Read this after reboot');
INSERT INTO t3_restart (SELECT 0, c2, c3, c4, c5 FROM t3_restart);
INSERT INTO t3_restart (SELECT 0, c2, c3, c4, c5 FROM t3_restart);
INSERT INTO t3_restart (SELECT 0, c2, c3, c4, c5 FROM t3_restart);
INSERT INTO t3_restart (SELECT 0, c2, c3, c4, c5 FROM t3_restart);
SHOW CREATE TABLE t3_restart;
Table Create Table
t3_restart CREATE TABLE `t3_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000027 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
SELECT count(*) FROM t3_restart;
count(*)
16
#
# Create and insert records into a DYNAMIC row formatted table.
#
CREATE TABLE t4_restart(c1 DOUBLE AUTO_INCREMENT KEY, c2 CHAR(10), c3 VARCHAR(100), c4 DATE, c5 TEXT)
ROW_FORMAT=DYNAMIC ENGINE=InnoDB;
INSERT INTO t4_restart VALUES (1000000000, 'MySQL', 'InnoDB', '2011-11-11', 'Read this after reboot');
INSERT INTO t4_restart (SELECT 0, c2, c3, c4, c5 FROM t4_restart);
INSERT INTO t4_restart (SELECT 0, c2, c3, c4, c5 FROM t4_restart);
INSERT INTO t4_restart (SELECT 0, c2, c3, c4, c5 FROM t4_restart);
INSERT INTO t4_restart (SELECT 0, c2, c3, c4, c5 FROM t4_restart);
SHOW CREATE TABLE t4_restart;
Table Create Table
t4_restart CREATE TABLE `t4_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000027 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
SELECT count(*) FROM t4_restart;
count(*)
16
#
# Create and insert records into a table that uses a remote DATA DIRECTORY.
#
CREATE TABLE t5_restart(c1 DOUBLE AUTO_INCREMENT KEY, c2 CHAR(10), c3 VARCHAR(100), c4 DATE, c5 TEXT)
ROW_FORMAT=DYNAMIC ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir';
INSERT INTO t5_restart VALUES (1000000000, 'MySQL', 'InnoDB', '2011-11-11', 'Read this after reboot');
INSERT INTO t5_restart (SELECT 0, c2, c3, c4, c5 FROM t5_restart);
INSERT INTO t5_restart (SELECT 0, c2, c3, c4, c5 FROM t5_restart);
INSERT INTO t5_restart (SELECT 0, c2, c3, c4, c5 FROM t5_restart);
INSERT INTO t5_restart (SELECT 0, c2, c3, c4, c5 FROM t5_restart);
SHOW CREATE TABLE t5_restart;
Table Create Table
t5_restart CREATE TABLE `t5_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000027 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/'
SELECT count(*) FROM t5_restart;
count(*)
16
#
# Create and insert records into a partitioned table that uses
# a remote DATA DIRECTORY for each partition.
#
CREATE TABLE t6_restart(
c1 INT AUTO_INCREMENT KEY, c2 CHAR(10), c3 VARCHAR(100), c4 DATE, c5 TEXT)
ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2 ENGINE=InnoDB
PARTITION BY HASH(c1) (
PARTITION p0 DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir',
PARTITION p1 DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir',
PARTITION p2 DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir');
INSERT INTO t6_restart VALUES (0, 'MySQL', 'InnoDB', '2011-11-11', 'Read this after reboot');
INSERT INTO t6_restart (SELECT 0, c2, c3, c4, c5 FROM t6_restart);
INSERT INTO t6_restart (SELECT 0, c2, c3, c4, c5 FROM t6_restart);
INSERT INTO t6_restart (SELECT 0, c2, c3, c4, c5 FROM t6_restart);
INSERT INTO t6_restart (SELECT 0, c2, c3, c4, c5 FROM t6_restart);
SHOW CREATE TABLE t6_restart;
Table Create Table
t6_restart CREATE TABLE `t6_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=17 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
PARTITION BY HASH (`c1`)
(PARTITION `p0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB)
SELECT count(*) FROM t6_restart;
count(*)
16
#
# Create and insert records into a subpartitioned table that uses
# a remote DATA DIRECTORY for each subpartition.
#
CREATE TABLE t7_restart(
c1 INT AUTO_INCREMENT KEY, c2 CHAR(10), c3 VARCHAR(100), c4 DATE, c5 TEXT)
ROW_FORMAT=DYNAMIC ENGINE=InnoDB
PARTITION BY RANGE(c1) SUBPARTITION BY HASH(c1) (
PARTITION p0 VALUES LESS THAN (10) (
SUBPARTITION s0 DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir',
SUBPARTITION s1 DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir'),
PARTITION p1 VALUES LESS THAN MAXVALUE (
SUBPARTITION s2 DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir',
SUBPARTITION s3 DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir'));
INSERT INTO t7_restart VALUES (0, 'MySQL', 'InnoDB', '2011-11-11', 'Read this after reboot');
INSERT INTO t7_restart (SELECT 0, c2, c3, c4, c5 FROM t7_restart);
INSERT INTO t7_restart (SELECT 0, c2, c3, c4, c5 FROM t7_restart);
INSERT INTO t7_restart (SELECT 0, c2, c3, c4, c5 FROM t7_restart);
INSERT INTO t7_restart (SELECT 0, c2, c3, c4, c5 FROM t7_restart);
SHOW CREATE TABLE t7_restart;
Table Create Table
t7_restart CREATE TABLE `t7_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=17 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
PARTITION BY RANGE (`c1`)
SUBPARTITION BY HASH (`c1`)
(PARTITION `p0` VALUES LESS THAN (10)
(SUBPARTITION `s0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB),
PARTITION `p1` VALUES LESS THAN MAXVALUE
(SUBPARTITION `s2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s3` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB))
SELECT count(*) FROM t7_restart;
count(*)
16
#
# Show these tables in information_schema.
#
=== information_schema.innodb_sys_tables and innodb_sys_tablespaces ===
Table Name Tablespace Table Flags Columns Row Format Zip Size Space Type
test/t1_restart test/t1_restart 0 8 Redundant 0 Single
test/t2_restart test/t2_restart 1 8 Compact 0 Single
test/t3_restart test/t3_restart 37 8 Compressed 2048 Single
test/t4_restart test/t4_restart 33 8 Dynamic 0 Single
test/t5_restart test/t5_restart 97 8 Dynamic 0 Single
test/t6_restart#p#p0 test/t6_restart#p#p0 101 8 Compressed 2048 Single
test/t6_restart#p#p1 test/t6_restart#p#p1 101 8 Compressed 2048 Single
test/t6_restart#p#p2 test/t6_restart#p#p2 101 8 Compressed 2048 Single
test/t7_restart#p#p0#sp#s0 test/t7_restart#p#p0#sp#s0 97 8 Dynamic 0 Single
test/t7_restart#p#p0#sp#s1 test/t7_restart#p#p0#sp#s1 97 8 Dynamic 0 Single
test/t7_restart#p#p1#sp#s2 test/t7_restart#p#p1#sp#s2 97 8 Dynamic 0 Single
test/t7_restart#p#p1#sp#s3 test/t7_restart#p#p1#sp#s3 97 8 Dynamic 0 Single
=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
Space_Name Space_Type Page_Size Zip_Size Formats_Permitted Path
test/t1_restart Single DEFAULT DEFAULT Compact or Redundant MYSQLD_DATADIR/test/t1_restart.ibd
test/t2_restart Single DEFAULT DEFAULT Compact or Redundant MYSQLD_DATADIR/test/t2_restart.ibd
test/t3_restart Single DEFAULT 2048 Compressed MYSQLD_DATADIR/test/t3_restart.ibd
test/t4_restart Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t4_restart.ibd
test/t5_restart Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t5_restart.ibd
test/t6_restart#p#p0 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p0.ibd
test/t6_restart#p#p1 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p1.ibd
test/t6_restart#p#p2 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p2.ibd
test/t7_restart#p#p0#sp#s0 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p0#sp#s0.ibd
test/t7_restart#p#p0#sp#s1 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p0#sp#s1.ibd
test/t7_restart#p#p1#sp#s2 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p1#sp#s2.ibd
test/t7_restart#p#p1#sp#s3 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p1#sp#s3.ibd
#
# Shutdown the server and list the tablespace OS files
#
---- MYSQL_DATA_DIR/test
t1_restart.frm
t1_restart.ibd
t2_restart.frm
t2_restart.ibd
t3_restart.frm
t3_restart.ibd
t4_restart.frm
t4_restart.ibd
t5_restart.frm
t5_restart.isl
t6_restart#p#p0.isl
t6_restart#p#p1.isl
t6_restart#p#p2.isl
t6_restart.frm
t6_restart.par
t7_restart#p#p0#sp#s0.isl
t7_restart#p#p0#sp#s1.isl
t7_restart#p#p1#sp#s2.isl
t7_restart#p#p1#sp#s3.isl
t7_restart.frm
t7_restart.par
---- MYSQL_TMP_DIR/alt_dir
test
---- MYSQL_TMP_DIR/alt_dir/test
t5_restart.ibd
t6_restart#p#p0.ibd
t6_restart#p#p1.ibd
t6_restart#p#p2.ibd
t7_restart#p#p0#sp#s0.ibd
t7_restart#p#p0#sp#s1.ibd
t7_restart#p#p1#sp#s2.ibd
t7_restart#p#p1#sp#s3.ibd
#
# Start the server and show that tables are still visible and accessible.
#
SHOW VARIABLES LIKE 'innodb_file_per_table';
Variable_name Value
innodb_file_per_table ON
SHOW CREATE TABLE t1_restart;
Table Create Table
t1_restart CREATE TABLE `t1_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000020 DEFAULT CHARSET=latin1 ROW_FORMAT=REDUNDANT
SHOW CREATE TABLE t2_restart;
Table Create Table
t2_restart CREATE TABLE `t2_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000020 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT
SHOW CREATE TABLE t3_restart;
Table Create Table
t3_restart CREATE TABLE `t3_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000020 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
SHOW CREATE TABLE t4_restart;
Table Create Table
t4_restart CREATE TABLE `t4_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000020 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
SHOW CREATE TABLE t5_restart;
Table Create Table
t5_restart CREATE TABLE `t5_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000020 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/'
SHOW CREATE TABLE t6_restart;
Table Create Table
t6_restart CREATE TABLE `t6_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=17 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
PARTITION BY HASH (`c1`)
(PARTITION `p0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB)
SHOW CREATE TABLE t7_restart;
Table Create Table
t7_restart CREATE TABLE `t7_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=17 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
PARTITION BY RANGE (`c1`)
SUBPARTITION BY HASH (`c1`)
(PARTITION `p0` VALUES LESS THAN (10)
(SUBPARTITION `s0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB),
PARTITION `p1` VALUES LESS THAN MAXVALUE
(SUBPARTITION `s2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s3` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB))
INSERT INTO t1_restart (SELECT 0, c2, c3, c4, c5 FROM t1_restart);
INSERT INTO t2_restart (SELECT 0, c2, c3, c4, c5 FROM t2_restart);
INSERT INTO t3_restart (SELECT 0, c2, c3, c4, c5 FROM t3_restart);
INSERT INTO t4_restart (SELECT 0, c2, c3, c4, c5 FROM t4_restart);
INSERT INTO t5_restart (SELECT 0, c2, c3, c4, c5 FROM t5_restart);
INSERT INTO t6_restart (SELECT 0, c2, c3, c4, c5 FROM t6_restart);
INSERT INTO t7_restart (SELECT 0, c2, c3, c4, c5 FROM t7_restart);
SELECT count(*) FROM t1_restart;
count(*)
32
SELECT count(*) FROM t2_restart;
count(*)
32
SELECT count(*) FROM t3_restart;
count(*)
32
SELECT count(*) FROM t4_restart;
count(*)
32
SELECT count(*) FROM t5_restart;
count(*)
32
SELECT count(*) FROM t6_restart;
count(*)
32
SELECT count(*) FROM t7_restart;
count(*)
32
#
# Show these tables in information_schema.
#
=== information_schema.innodb_sys_tables and innodb_sys_tablespaces ===
Table Name Tablespace Table Flags Columns Row Format Zip Size Space Type
test/t1_restart test/t1_restart 0 8 Redundant 0 Single
test/t2_restart test/t2_restart 1 8 Compact 0 Single
test/t3_restart test/t3_restart 37 8 Compressed 2048 Single
test/t4_restart test/t4_restart 33 8 Dynamic 0 Single
test/t5_restart test/t5_restart 97 8 Dynamic 0 Single
test/t6_restart#p#p0 test/t6_restart#p#p0 101 8 Compressed 2048 Single
test/t6_restart#p#p1 test/t6_restart#p#p1 101 8 Compressed 2048 Single
test/t6_restart#p#p2 test/t6_restart#p#p2 101 8 Compressed 2048 Single
test/t7_restart#p#p0#sp#s0 test/t7_restart#p#p0#sp#s0 97 8 Dynamic 0 Single
test/t7_restart#p#p0#sp#s1 test/t7_restart#p#p0#sp#s1 97 8 Dynamic 0 Single
test/t7_restart#p#p1#sp#s2 test/t7_restart#p#p1#sp#s2 97 8 Dynamic 0 Single
test/t7_restart#p#p1#sp#s3 test/t7_restart#p#p1#sp#s3 97 8 Dynamic 0 Single
=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
Space_Name Space_Type Page_Size Zip_Size Formats_Permitted Path
test/t1_restart Single DEFAULT DEFAULT Compact or Redundant MYSQLD_DATADIR/test/t1_restart.ibd
test/t2_restart Single DEFAULT DEFAULT Compact or Redundant MYSQLD_DATADIR/test/t2_restart.ibd
test/t3_restart Single DEFAULT 2048 Compressed MYSQLD_DATADIR/test/t3_restart.ibd
test/t4_restart Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t4_restart.ibd
test/t5_restart Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t5_restart.ibd
test/t6_restart#p#p0 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p0.ibd
test/t6_restart#p#p1 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p1.ibd
test/t6_restart#p#p2 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p2.ibd
test/t7_restart#p#p0#sp#s0 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p0#sp#s0.ibd
test/t7_restart#p#p0#sp#s1 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p0#sp#s1.ibd
test/t7_restart#p#p1#sp#s2 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p1#sp#s2.ibd
test/t7_restart#p#p1#sp#s3 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p1#sp#s3.ibd
DROP TABLE t1_restart;
DROP TABLE t2_restart;
DROP TABLE t3_restart;
#
# Truncate the remote tablespaces.
#
TRUNCATE TABLE t5_restart;
ALTER TABLE t6_restart TRUNCATE PARTITION p2;
ALTER TABLE t7_restart TRUNCATE PARTITION p1;
=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
Space_Name Space_Type Page_Size Zip_Size Formats_Permitted Path
test/t4_restart Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t4_restart.ibd
test/t6_restart#p#p0 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p0.ibd
test/t6_restart#p#p1 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p1.ibd
test/t7_restart#p#p0#sp#s0 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p0#sp#s0.ibd
test/t7_restart#p#p0#sp#s1 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p0#sp#s1.ibd
test/t5_restart Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t5_restart.ibd
test/t6_restart#p#p2 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p2.ibd
test/t7_restart#p#p1#sp#s2 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p1#sp#s2.ibd
test/t7_restart#p#p1#sp#s3 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p1#sp#s3.ibd
INSERT INTO t5_restart VALUES (1000000000, 'MySQL', 'InnoDB', '2011-11-11', 'Read this after reboot');
INSERT INTO t5_restart (SELECT 0, c2, c3, c4, c5 FROM t5_restart);
INSERT INTO t5_restart (SELECT 0, c2, c3, c4, c5 FROM t5_restart);
INSERT INTO t5_restart (SELECT 0, c2, c3, c4, c5 FROM t5_restart);
SELECT count(*) FROM t5_restart;
count(*)
8
SHOW CREATE TABLE t5_restart;
Table Create Table
t5_restart CREATE TABLE `t5_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000012 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/'
SELECT count(*) FROM t6_restart;
count(*)
21
SHOW CREATE TABLE t6_restart;
Table Create Table
t6_restart CREATE TABLE `t6_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=32 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
PARTITION BY HASH (`c1`)
(PARTITION `p0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB)
SELECT count(*) FROM t7_restart;
count(*)
9
SHOW CREATE TABLE t7_restart;
Table Create Table
t7_restart CREATE TABLE `t7_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
PARTITION BY RANGE (`c1`)
SUBPARTITION BY HASH (`c1`)
(PARTITION `p0` VALUES LESS THAN (10)
(SUBPARTITION `s0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB),
PARTITION `p1` VALUES LESS THAN MAXVALUE
(SUBPARTITION `s2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s3` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB))
#
# Shutdown the server and make a backup of a tablespace
#
---- MYSQL_DATA_DIR/test
t4_restart.frm
t4_restart.ibd
t5_restart.frm
t5_restart.frm.bak
t5_restart.isl
t5_restart.isl.bak
t6_restart#p#p0.isl
t6_restart#p#p1.isl
t6_restart#p#p2.isl
t6_restart.frm
t6_restart.par
t7_restart#p#p0#sp#s0.isl
t7_restart#p#p0#sp#s1.isl
t7_restart#p#p1#sp#s2.isl
t7_restart#p#p1#sp#s3.isl
t7_restart.frm
t7_restart.par
---- MYSQL_TMP_DIR/alt_dir/test
t5_restart.ibd
t5_restart.ibd.bak
t6_restart#p#p0.ibd
t6_restart#p#p1.ibd
t6_restart#p#p2.ibd
t7_restart#p#p0#sp#s0.ibd
t7_restart#p#p0#sp#s1.ibd
t7_restart#p#p1#sp#s2.ibd
t7_restart#p#p1#sp#s3.ibd
#
# Start the server and show the tablespaces.
#
SHOW VARIABLES LIKE 'innodb_file_per_table';
Variable_name Value
innodb_file_per_table ON
=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
Space_Name Space_Type Page_Size Zip_Size Formats_Permitted Path
test/t4_restart Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t4_restart.ibd
test/t6_restart#p#p0 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p0.ibd
test/t6_restart#p#p1 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p1.ibd
test/t7_restart#p#p0#sp#s0 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p0#sp#s0.ibd
test/t7_restart#p#p0#sp#s1 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p0#sp#s1.ibd
test/t5_restart Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t5_restart.ibd
test/t6_restart#p#p2 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t6_restart#p#p2.ibd
test/t7_restart#p#p1#sp#s2 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p1#sp#s2.ibd
test/t7_restart#p#p1#sp#s3 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t7_restart#p#p1#sp#s3.ibd
SELECT count(*) FROM t5_restart;
count(*)
8
SHOW CREATE TABLE t5_restart;
Table Create Table
t5_restart CREATE TABLE `t5_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000009 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/'
SELECT count(*) FROM t6_restart;
count(*)
21
SHOW CREATE TABLE t6_restart;
Table Create Table
t6_restart CREATE TABLE `t6_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=32 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
PARTITION BY HASH (`c1`)
(PARTITION `p0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB)
SELECT count(*) FROM t7_restart;
count(*)
9
SHOW CREATE TABLE t7_restart;
Table Create Table
t7_restart CREATE TABLE `t7_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
PARTITION BY RANGE (`c1`)
SUBPARTITION BY HASH (`c1`)
(PARTITION `p0` VALUES LESS THAN (10)
(SUBPARTITION `s0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB),
PARTITION `p1` VALUES LESS THAN MAXVALUE
(SUBPARTITION `s2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s3` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB))
#
# Try to rename a tablespace to a file that already exists
#
RENAME TABLE t5_restart TO t55_restart;
ERROR 42S01: Table 't55_restart' already exists
RENAME TABLE t5_restart TO t55_restart;
ERROR HY000: Error on rename of './test/t5_restart' to './test/t55_restart' (errno: 184 "Tablespace already exists")
---- MYSQL_DATA_DIR/test
t4_restart.frm
t4_restart.ibd
t5_restart.frm
t5_restart.isl
t6_restart#p#p0.isl
t6_restart#p#p1.isl
t6_restart#p#p2.isl
t6_restart.frm
t6_restart.par
t7_restart#p#p0#sp#s0.isl
t7_restart#p#p0#sp#s1.isl
t7_restart#p#p1#sp#s2.isl
t7_restart#p#p1#sp#s3.isl
t7_restart.frm
t7_restart.par
---- MYSQL_TMP_DIR/alt_dir/test
t5_restart.ibd
t6_restart#p#p0.ibd
t6_restart#p#p1.ibd
t6_restart#p#p2.ibd
t7_restart#p#p0#sp#s0.ibd
t7_restart#p#p0#sp#s1.ibd
t7_restart#p#p1#sp#s2.ibd
t7_restart#p#p1#sp#s3.ibd
#
# Rename file table and tablespace
#
RENAME TABLE t5_restart TO t55_restart;
RENAME TABLE t6_restart TO t66_restart;
RENAME TABLE t7_restart TO t77_restart;
=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
Space_Name Space_Type Page_Size Zip_Size Formats_Permitted Path
test/t4_restart Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t4_restart.ibd
test/t66_restart#p#p0 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t66_restart#p#p0.ibd
test/t66_restart#p#p1 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t66_restart#p#p1.ibd
test/t77_restart#p#p0#sp#s0 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t77_restart#p#p0#sp#s0.ibd
test/t77_restart#p#p0#sp#s1 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t77_restart#p#p0#sp#s1.ibd
test/t55_restart Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t55_restart.ibd
test/t66_restart#p#p2 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t66_restart#p#p2.ibd
test/t77_restart#p#p1#sp#s2 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t77_restart#p#p1#sp#s2.ibd
test/t77_restart#p#p1#sp#s3 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t77_restart#p#p1#sp#s3.ibd
INSERT INTO t55_restart (SELECT 0, c2, c3, c4, c5 FROM t55_restart);
SELECT count(*) FROM t55_restart;
count(*)
16
SHOW CREATE TABLE t55_restart;
Table Create Table
t55_restart CREATE TABLE `t55_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000024 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/'
INSERT INTO t66_restart (SELECT 0, c2, c3, c4, c5 FROM t66_restart);
SELECT count(*) FROM t66_restart;
count(*)
42
SHOW CREATE TABLE t66_restart;
Table Create Table
t66_restart CREATE TABLE `t66_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=53 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
PARTITION BY HASH (`c1`)
(PARTITION `p0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB)
INSERT INTO t77_restart (SELECT 0, c2, c3, c4, c5 FROM t77_restart);
SELECT count(*) FROM t77_restart;
count(*)
18
SHOW CREATE TABLE t77_restart;
Table Create Table
t77_restart CREATE TABLE `t77_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=19 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
PARTITION BY RANGE (`c1`)
SUBPARTITION BY HASH (`c1`)
(PARTITION `p0` VALUES LESS THAN (10)
(SUBPARTITION `s0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB),
PARTITION `p1` VALUES LESS THAN MAXVALUE
(SUBPARTITION `s2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s3` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB))
---- MYSQL_DATA_DIR/test
t4_restart.frm
t4_restart.ibd
t55_restart.frm
t55_restart.isl
t66_restart#p#p0.isl
t66_restart#p#p1.isl
t66_restart#p#p2.isl
t66_restart.frm
t66_restart.par
t77_restart#p#p0#sp#s0.isl
t77_restart#p#p0#sp#s1.isl
t77_restart#p#p1#sp#s2.isl
t77_restart#p#p1#sp#s3.isl
t77_restart.frm
t77_restart.par
---- MYSQL_TMP_DIR/alt_dir/test
t55_restart.ibd
t66_restart#p#p0.ibd
t66_restart#p#p1.ibd
t66_restart#p#p2.ibd
t77_restart#p#p0#sp#s0.ibd
t77_restart#p#p0#sp#s1.ibd
t77_restart#p#p1#sp#s2.ibd
t77_restart#p#p1#sp#s3.ibd
#
# Restart the server
#
SHOW VARIABLES LIKE 'innodb_file_per_table';
Variable_name Value
innodb_file_per_table ON
=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
Space_Name Space_Type Page_Size Zip_Size Formats_Permitted Path
test/t4_restart Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t4_restart.ibd
test/t66_restart#p#p0 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t66_restart#p#p0.ibd
test/t66_restart#p#p1 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t66_restart#p#p1.ibd
test/t77_restart#p#p0#sp#s0 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t77_restart#p#p0#sp#s0.ibd
test/t77_restart#p#p0#sp#s1 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t77_restart#p#p0#sp#s1.ibd
test/t55_restart Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t55_restart.ibd
test/t66_restart#p#p2 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/alt_dir/test/t66_restart#p#p2.ibd
test/t77_restart#p#p1#sp#s2 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t77_restart#p#p1#sp#s2.ibd
test/t77_restart#p#p1#sp#s3 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/alt_dir/test/t77_restart#p#p1#sp#s3.ibd
INSERT INTO t55_restart (SELECT 0, c2, c3, c4, c5 FROM t55_restart);
SELECT count(*) FROM t55_restart;
count(*)
32
SHOW CREATE TABLE t55_restart;
Table Create Table
t55_restart CREATE TABLE `t55_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000048 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/'
INSERT INTO t66_restart (SELECT 0, c2, c3, c4, c5 FROM t66_restart);
SELECT count(*) FROM t66_restart;
count(*)
84
SHOW CREATE TABLE t66_restart;
Table Create Table
t66_restart CREATE TABLE `t66_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=95 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
PARTITION BY HASH (`c1`)
(PARTITION `p0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
PARTITION `p2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB)
INSERT INTO t77_restart (SELECT 0, c2, c3, c4, c5 FROM t77_restart);
SELECT count(*) FROM t77_restart;
count(*)
36
SHOW CREATE TABLE t77_restart;
Table Create Table
t77_restart CREATE TABLE `t77_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=37 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
PARTITION BY RANGE (`c1`)
SUBPARTITION BY HASH (`c1`)
(PARTITION `p0` VALUES LESS THAN (10)
(SUBPARTITION `s0` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s1` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB),
PARTITION `p1` VALUES LESS THAN MAXVALUE
(SUBPARTITION `s2` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB,
SUBPARTITION `s3` DATA DIRECTORY = 'MYSQL_TMP_DIR/alt_dir' ENGINE = InnoDB))
#
# Shutdown the server
#
#
# Move the remote tablespaces to a new location and change the ISL files
#
---- MYSQL_DATA_DIR/test
t4_restart.frm
t4_restart.ibd
t55_restart.frm
t55_restart.isl
t66_restart#p#p0.isl
t66_restart#p#p1.isl
t66_restart#p#p2.isl
t66_restart.frm
t66_restart.par
t77_restart#p#p0#sp#s0.isl
t77_restart#p#p0#sp#s1.isl
t77_restart#p#p1#sp#s2.isl
t77_restart#p#p1#sp#s3.isl
t77_restart.frm
t77_restart.par
---- MYSQL_TMP_DIR/alt_dir/test
t55_restart.ibd
t66_restart#p#p0.ibd
t66_restart#p#p1.ibd
t66_restart#p#p2.ibd
t77_restart#p#p0#sp#s0.ibd
t77_restart#p#p0#sp#s1.ibd
t77_restart#p#p1#sp#s2.ibd
t77_restart#p#p1#sp#s3.ibd
---- MYSQL_TMP_DIR/new_dir/test
# Moving tablespace 't4_restart' from MYSQL_DATA_DIR to MYSQL_TMP_DIR/new_dir
# Moving tablespace 't55_restart' from MYSQL_TMP_DIR/alt_dir to MYSQL_TMP_DIR/new_dir
# Moving tablespace 't66_restart' from MYSQL_TMP_DIR/alt_dir to MYSQL_TMP_DIR/new_dir
# Moving tablespace 't77_restart' from MYSQL_TMP_DIR/alt_dir to MYSQL_TMP_DIR/new_dir
---- MYSQL_DATA_DIR/test
t4_restart.frm
t4_restart.isl
t55_restart.frm
t55_restart.isl
t66_restart#p#p0.isl
t66_restart#p#p1.isl
t66_restart#p#p2.isl
t66_restart.frm
t66_restart.par
t77_restart#p#p0#sp#s0.isl
t77_restart#p#p0#sp#s1.isl
t77_restart#p#p1#sp#s2.isl
t77_restart#p#p1#sp#s3.isl
t77_restart.frm
t77_restart.par
---- MYSQL_TMP_DIR/alt_dir/test
---- MYSQL_TMP_DIR/new_dir/test
t4_restart.ibd
t55_restart.ibd
t66_restart#p#p0.ibd
t66_restart#p#p1.ibd
t66_restart#p#p2.ibd
t77_restart#p#p0#sp#s0.ibd
t77_restart#p#p0#sp#s1.ibd
t77_restart#p#p1#sp#s2.ibd
t77_restart#p#p1#sp#s3.ibd
#
# Start the server and check tablespaces.
#
=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
Space_Name Space_Type Page_Size Zip_Size Formats_Permitted Path
test/t4_restart Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/new_dir/test/t4_restart.ibd
test/t66_restart#p#p0 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/new_dir/test/t66_restart#p#p0.ibd
test/t66_restart#p#p1 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/new_dir/test/t66_restart#p#p1.ibd
test/t77_restart#p#p0#sp#s0 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/new_dir/test/t77_restart#p#p0#sp#s0.ibd
test/t77_restart#p#p0#sp#s1 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/new_dir/test/t77_restart#p#p0#sp#s1.ibd
test/t55_restart Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/new_dir/test/t55_restart.ibd
test/t66_restart#p#p2 Single DEFAULT DEFAULT Compressed MYSQL_TMP_DIR/new_dir/test/t66_restart#p#p2.ibd
test/t77_restart#p#p1#sp#s2 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/new_dir/test/t77_restart#p#p1#sp#s2.ibd
test/t77_restart#p#p1#sp#s3 Single DEFAULT DEFAULT Dynamic MYSQL_TMP_DIR/new_dir/test/t77_restart#p#p1#sp#s3.ibd
INSERT INTO t4_restart (SELECT 0, c2, c3, c4, c5 FROM t4_restart);
SELECT count(*) FROM t4_restart;
count(*)
64
SHOW CREATE TABLE t4_restart;
Table Create Table
t4_restart CREATE TABLE `t4_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000099 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC DATA DIRECTORY='MYSQL_TMP_DIR/new_dir/'
INSERT INTO t55_restart (SELECT 0, c2, c3, c4, c5 FROM t55_restart);
SELECT count(*) FROM t55_restart;
count(*)
64
SHOW CREATE TABLE t55_restart;
Table Create Table
t55_restart CREATE TABLE `t55_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000096 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC DATA DIRECTORY='MYSQL_TMP_DIR/new_dir/'
INSERT INTO t66_restart (SELECT 0, c2, c3, c4, c5 FROM t66_restart);
SELECT count(*) FROM t66_restart;
count(*)
168
SHOW CREATE TABLE t66_restart;
Table Create Table
t66_restart CREATE TABLE `t66_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=179 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
PARTITION BY HASH (`c1`)
(PARTITION `p0` DATA DIRECTORY = 'MYSQL_TMP_DIR/new_dir' ENGINE = InnoDB,
PARTITION `p1` DATA DIRECTORY = 'MYSQL_TMP_DIR/new_dir' ENGINE = InnoDB,
PARTITION `p2` DATA DIRECTORY = 'MYSQL_TMP_DIR/new_dir' ENGINE = InnoDB)
INSERT INTO t77_restart (SELECT 0, c2, c3, c4, c5 FROM t77_restart);
SELECT count(*) FROM t77_restart;
count(*)
72
SHOW CREATE TABLE t77_restart;
Table Create Table
t77_restart CREATE TABLE `t77_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=73 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
PARTITION BY RANGE (`c1`)
SUBPARTITION BY HASH (`c1`)
(PARTITION `p0` VALUES LESS THAN (10)
(SUBPARTITION `s0` DATA DIRECTORY = 'MYSQL_TMP_DIR/new_dir' ENGINE = InnoDB,
SUBPARTITION `s1` DATA DIRECTORY = 'MYSQL_TMP_DIR/new_dir' ENGINE = InnoDB),
PARTITION `p1` VALUES LESS THAN MAXVALUE
(SUBPARTITION `s2` DATA DIRECTORY = 'MYSQL_TMP_DIR/new_dir' ENGINE = InnoDB,
SUBPARTITION `s3` DATA DIRECTORY = 'MYSQL_TMP_DIR/new_dir' ENGINE = InnoDB))
#
# Shutdown the server
#
#
# Move the remote tablespaces back to the default datadir and delete the ISL file.
#
---- MYSQL_DATA_DIR/test
t4_restart.frm
t4_restart.isl
t55_restart.frm
t55_restart.isl
t66_restart#p#p0.isl
t66_restart#p#p1.isl
t66_restart#p#p2.isl
t66_restart.frm
t66_restart.par
t77_restart#p#p0#sp#s0.isl
t77_restart#p#p0#sp#s1.isl
t77_restart#p#p1#sp#s2.isl
t77_restart#p#p1#sp#s3.isl
t77_restart.frm
t77_restart.par
---- MYSQL_TMP_DIR/new_dir/test
t4_restart.ibd
t55_restart.ibd
t66_restart#p#p0.ibd
t66_restart#p#p1.ibd
t66_restart#p#p2.ibd
t77_restart#p#p0#sp#s0.ibd
t77_restart#p#p0#sp#s1.ibd
t77_restart#p#p1#sp#s2.ibd
t77_restart#p#p1#sp#s3.ibd
# Moving 't4_restart' from MYSQL_TMP_DIR/new_dir to MYSQL_DATA_DIR
# Moving 't55_restart' from MYSQL_TMP_DIR/new_dir to MYSQL_DATA_DIR
# Moving 't66_restart' from MYSQL_TMP_DIR/new_dir to MYSQL_DATA_DIR
# Moving 't77_restart' from MYSQL_TMP_DIR/new_dir to MYSQL_DATA_DIR
---- MYSQL_DATA_DIR/test
t4_restart.frm
t4_restart.ibd
t55_restart.frm
t55_restart.ibd
t66_restart#p#p0.ibd
t66_restart#p#p1.ibd
t66_restart#p#p2.ibd
t66_restart.frm
t66_restart.par
t77_restart#p#p0#sp#s0.ibd
t77_restart#p#p0#sp#s1.ibd
t77_restart#p#p1#sp#s2.ibd
t77_restart#p#p1#sp#s3.ibd
t77_restart.frm
t77_restart.par
---- MYSQL_TMP_DIR/new_dir/test
#
# Start the server and check tablespaces.
#
=== information_schema.innodb_sys_tablespaces and innodb_sys_datafiles ===
Space_Name Space_Type Page_Size Zip_Size Formats_Permitted Path
test/t4_restart Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t4_restart.ibd
test/t66_restart#p#p0 Single DEFAULT DEFAULT Compressed MYSQLD_DATADIR/test/t66_restart#p#p0.ibd
test/t66_restart#p#p1 Single DEFAULT DEFAULT Compressed MYSQLD_DATADIR/test/t66_restart#p#p1.ibd
test/t77_restart#p#p0#sp#s0 Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t77_restart#p#p0#sp#s0.ibd
test/t77_restart#p#p0#sp#s1 Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t77_restart#p#p0#sp#s1.ibd
test/t55_restart Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t55_restart.ibd
test/t66_restart#p#p2 Single DEFAULT DEFAULT Compressed MYSQLD_DATADIR/test/t66_restart#p#p2.ibd
test/t77_restart#p#p1#sp#s2 Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t77_restart#p#p1#sp#s2.ibd
test/t77_restart#p#p1#sp#s3 Single DEFAULT DEFAULT Dynamic MYSQLD_DATADIR/test/t77_restart#p#p1#sp#s3.ibd
INSERT INTO t4_restart (SELECT 0, c2, c3, c4, c5 FROM t4_restart);
SELECT count(*) FROM t4_restart;
count(*)
128
SHOW CREATE TABLE t4_restart;
Table Create Table
t4_restart CREATE TABLE `t4_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000195 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
INSERT INTO t55_restart (SELECT 0, c2, c3, c4, c5 FROM t55_restart);
SELECT count(*) FROM t55_restart;
count(*)
128
SHOW CREATE TABLE t55_restart;
Table Create Table
t55_restart CREATE TABLE `t55_restart` (
`c1` double NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=1000000192 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
INSERT INTO t66_restart (SELECT 0, c2, c3, c4, c5 FROM t66_restart);
SELECT count(*) FROM t66_restart;
count(*)
336
SHOW CREATE TABLE t66_restart;
Table Create Table
t66_restart CREATE TABLE `t66_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=347 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2
PARTITION BY HASH (`c1`)
(PARTITION `p0` ENGINE = InnoDB,
PARTITION `p1` ENGINE = InnoDB,
PARTITION `p2` ENGINE = InnoDB)
INSERT INTO t77_restart (SELECT 0, c2, c3, c4, c5 FROM t77_restart);
SELECT count(*) FROM t77_restart;
count(*)
144
SHOW CREATE TABLE t77_restart;
Table Create Table
t77_restart CREATE TABLE `t77_restart` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` char(10) DEFAULT NULL,
`c3` varchar(100) DEFAULT NULL,
`c4` date DEFAULT NULL,
`c5` text DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=InnoDB AUTO_INCREMENT=145 DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
PARTITION BY RANGE (`c1`)
SUBPARTITION BY HASH (`c1`)
(PARTITION `p0` VALUES LESS THAN (10)
(SUBPARTITION `s0` ENGINE = InnoDB,
SUBPARTITION `s1` ENGINE = InnoDB),
PARTITION `p1` VALUES LESS THAN MAXVALUE
(SUBPARTITION `s2` ENGINE = InnoDB,
SUBPARTITION `s3` ENGINE = InnoDB))
#
# Cleanup
#
DROP TABLE t4_restart;
DROP TABLE t55_restart;
DROP TABLE t66_restart;
DROP TABLE t77_restart;