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MDEV-9077 add sys_schema from https://github.com/mysql/mysql-sys

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This commit is contained in:
Vladislav Vaintroub
2021-03-17 17:57:11 +01:00
parent 7c5c6fa65c
commit 4bac804c90
179 changed files with 21600 additions and 0 deletions
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66
scripts/sys_schema/functions/extract_schema_from_file_name.sql Normal file
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS extract_schema_from_file_name;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION extract_schema_from_file_name (
path VARCHAR(512)
)
RETURNS VARCHAR(64)
COMMENT '
Description
-----------
Takes a raw file path, and attempts to extract the schema name from it.
Useful for when interacting with Performance Schema data
concerning IO statistics, for example.
Currently relies on the fact that a table data file will be within a
specified database directory (will not work with partitions or tables
that specify an individual DATA_DIRECTORY).
Parameters
-----------
path (VARCHAR(512)):
The full file path to a data file to extract the schema name from.
Returns
-----------
VARCHAR(64)
Example
-----------
mysql> SELECT sys.extract_schema_from_file_name(\'/var/lib/mysql/employees/employee.ibd\');
+----------------------------------------------------------------------------+
| sys.extract_schema_from_file_name(\'/var/lib/mysql/employees/employee.ibd\') |
+----------------------------------------------------------------------------+
| employees |
+----------------------------------------------------------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
NO SQL
BEGIN
RETURN LEFT(SUBSTRING_INDEX(SUBSTRING_INDEX(REPLACE(path, '\\', '/'), '/', -2), '/', 1), 64);
END$$
DELIMITER ;

62
scripts/sys_schema/functions/extract_table_from_file_name.sql Normal file
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS extract_table_from_file_name;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION extract_table_from_file_name (
path VARCHAR(512)
)
RETURNS VARCHAR(64)
COMMENT '
Description
-----------
Takes a raw file path, and extracts the table name from it.
Useful for when interacting with Performance Schema data
concerning IO statistics, for example.
Parameters
-----------
path (VARCHAR(512)):
The full file path to a data file to extract the table name from.
Returns
-----------
VARCHAR(64)
Example
-----------
mysql> SELECT sys.extract_table_from_file_name(\'/var/lib/mysql/employees/employee.ibd\');
+---------------------------------------------------------------------------+
| sys.extract_table_from_file_name(\'/var/lib/mysql/employees/employee.ibd\') |
+---------------------------------------------------------------------------+
| employee |
+---------------------------------------------------------------------------+
1 row in set (0.02 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
NO SQL
BEGIN
RETURN LEFT(SUBSTRING_INDEX(REPLACE(SUBSTRING_INDEX(REPLACE(path, '\\', '/'), '/', -1), '@0024', '$'), '.', 1), 64);
END$$
DELIMITER ;

84
scripts/sys_schema/functions/format_bytes.sql Normal file
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS format_bytes;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION format_bytes (
-- We feed in and return TEXT here, as aggregates of
-- bytes can return numbers larger than BIGINT UNSIGNED
bytes TEXT
)
RETURNS TEXT
COMMENT '
Description
-----------
Takes a raw bytes value, and converts it to a human readable format.
Parameters
-----------
bytes (TEXT):
A raw bytes value.
Returns
-----------
TEXT
Example
-----------
mysql> SELECT sys.format_bytes(2348723492723746) AS size;
+----------+
| size |
+----------+
| 2.09 PiB |
+----------+
1 row in set (0.00 sec)
mysql> SELECT sys.format_bytes(2348723492723) AS size;
+----------+
| size |
+----------+
| 2.14 TiB |
+----------+
1 row in set (0.00 sec)
mysql> SELECT sys.format_bytes(23487234) AS size;
+-----------+
| size |
+-----------+
| 22.40 MiB |
+-----------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
NO SQL
BEGIN
IF bytes IS NULL THEN RETURN NULL;
ELSEIF bytes >= 1125899906842624 THEN RETURN CONCAT(ROUND(bytes / 1125899906842624, 2), ' PiB');
ELSEIF bytes >= 1099511627776 THEN RETURN CONCAT(ROUND(bytes / 1099511627776, 2), ' TiB');
ELSEIF bytes >= 1073741824 THEN RETURN CONCAT(ROUND(bytes / 1073741824, 2), ' GiB');
ELSEIF bytes >= 1048576 THEN RETURN CONCAT(ROUND(bytes / 1048576, 2), ' MiB');
ELSEIF bytes >= 1024 THEN RETURN CONCAT(ROUND(bytes / 1024, 2), ' KiB');
ELSE RETURN CONCAT(ROUND(bytes, 0), ' bytes');
END IF;
END$$
DELIMITER ;

108
scripts/sys_schema/functions/format_path.sql Normal file
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-- Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS format_path;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION format_path (
in_path VARCHAR(512)
)
RETURNS VARCHAR(512) CHARSET UTF8
COMMENT '
Description
-----------
Takes a raw path value, and strips out the datadir or tmpdir
replacing with @@datadir and @@tmpdir respectively.
Also normalizes the paths across operating systems, so backslashes
on Windows are converted to forward slashes
Parameters
-----------
path (VARCHAR(512)):
The raw file path value to format.
Returns
-----------
VARCHAR(512) CHARSET UTF8
Example
-----------
mysql> select @@datadir;
+-----------------------------------------------+
| @@datadir |
+-----------------------------------------------+
| /Users/mark/sandboxes/SmallTree/AMaster/data/ |
+-----------------------------------------------+
1 row in set (0.06 sec)
mysql> select format_path(\'/Users/mark/sandboxes/SmallTree/AMaster/data/mysql/proc.MYD\') AS path;
+--------------------------+
| path |
+--------------------------+
| @@datadir/mysql/proc.MYD |
+--------------------------+
1 row in set (0.03 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
NO SQL
BEGIN
DECLARE v_path VARCHAR(512);
DECLARE v_undo_dir VARCHAR(1024);
DECLARE path_separator CHAR(1) DEFAULT '/';
IF @@global.version_compile_os LIKE 'win%' THEN
SET path_separator = '\\';
END IF;
-- OSX hides /private/ in variables, but Performance Schema does not
IF in_path LIKE '/private/%' THEN
SET v_path = REPLACE(in_path, '/private', '');
ELSE
SET v_path = in_path;
END IF;
-- @@global.innodb_undo_directory is only set when separate undo logs are used
SET v_undo_dir = IFNULL((SELECT VARIABLE_VALUE FROM information_schema.GLOBAL_VARIABLES WHERE VARIABLE_NAME = 'innodb_undo_directory'), '');
IF v_path IS NULL THEN
RETURN NULL;
ELSEIF v_path LIKE CONCAT(@@global.datadir, IF(SUBSTRING(@@global.datadir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.datadir, CONCAT('@@datadir', IF(SUBSTRING(@@global.datadir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.tmpdir, IF(SUBSTRING(@@global.tmpdir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.tmpdir, CONCAT('@@tmpdir', IF(SUBSTRING(@@global.tmpdir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.slave_load_tmpdir, IF(SUBSTRING(@@global.slave_load_tmpdir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.slave_load_tmpdir, CONCAT('@@slave_load_tmpdir', IF(SUBSTRING(@@global.slave_load_tmpdir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.innodb_data_home_dir, IF(SUBSTRING(@@global.innodb_data_home_dir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.innodb_data_home_dir, CONCAT('@@innodb_data_home_dir', IF(SUBSTRING(@@global.innodb_data_home_dir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.innodb_log_group_home_dir, IF(SUBSTRING(@@global.innodb_log_group_home_dir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.innodb_log_group_home_dir, CONCAT('@@innodb_log_group_home_dir', IF(SUBSTRING(@@global.innodb_log_group_home_dir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(v_undo_dir, IF(SUBSTRING(v_undo_dir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, v_undo_dir, CONCAT('@@innodb_undo_directory', IF(SUBSTRING(v_undo_dir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.basedir, IF(SUBSTRING(@@global.basedir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.basedir, CONCAT('@@basedir', IF(SUBSTRING(@@global.basedir, -1) = path_separator, path_separator, '')));
END IF;
RETURN v_path;
END$$
DELIMITER ;

108
scripts/sys_schema/functions/format_path_57.sql Normal file
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-- Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS format_path;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION format_path (
in_path VARCHAR(512)
)
RETURNS VARCHAR(512) CHARSET UTF8
COMMENT '
Description
-----------
Takes a raw path value, and strips out the datadir or tmpdir
replacing with @@datadir and @@tmpdir respectively.
Also normalizes the paths across operating systems, so backslashes
on Windows are converted to forward slashes
Parameters
-----------
path (VARCHAR(512)):
The raw file path value to format.
Returns
-----------
VARCHAR(512) CHARSET UTF8
Example
-----------
mysql> select @@datadir;
+-----------------------------------------------+
| @@datadir |
+-----------------------------------------------+
| /Users/mark/sandboxes/SmallTree/AMaster/data/ |
+-----------------------------------------------+
1 row in set (0.06 sec)
mysql> select format_path(\'/Users/mark/sandboxes/SmallTree/AMaster/data/mysql/proc.MYD\') AS path;
+--------------------------+
| path |
+--------------------------+
| @@datadir/mysql/proc.MYD |
+--------------------------+
1 row in set (0.03 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
NO SQL
BEGIN
DECLARE v_path VARCHAR(512);
DECLARE v_undo_dir VARCHAR(1024);
DECLARE path_separator CHAR(1) DEFAULT '/';
IF @@global.version_compile_os LIKE 'win%' THEN
SET path_separator = '\\';
END IF;
-- OSX hides /private/ in variables, but Performance Schema does not
IF in_path LIKE '/private/%' THEN
SET v_path = REPLACE(in_path, '/private', '');
ELSE
SET v_path = in_path;
END IF;
-- @@global.innodb_undo_directory is only set when separate undo logs are used
SET v_undo_dir = IFNULL((SELECT VARIABLE_VALUE FROM performance_schema.global_variables WHERE VARIABLE_NAME = 'innodb_undo_directory'), '');
IF v_path IS NULL THEN
RETURN NULL;
ELSEIF v_path LIKE CONCAT(@@global.datadir, IF(SUBSTRING(@@global.datadir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.datadir, CONCAT('@@datadir', IF(SUBSTRING(@@global.datadir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.tmpdir, IF(SUBSTRING(@@global.tmpdir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.tmpdir, CONCAT('@@tmpdir', IF(SUBSTRING(@@global.tmpdir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.slave_load_tmpdir, IF(SUBSTRING(@@global.slave_load_tmpdir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.slave_load_tmpdir, CONCAT('@@slave_load_tmpdir', IF(SUBSTRING(@@global.slave_load_tmpdir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.innodb_data_home_dir, IF(SUBSTRING(@@global.innodb_data_home_dir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.innodb_data_home_dir, CONCAT('@@innodb_data_home_dir', IF(SUBSTRING(@@global.innodb_data_home_dir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.innodb_log_group_home_dir, IF(SUBSTRING(@@global.innodb_log_group_home_dir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.innodb_log_group_home_dir, CONCAT('@@innodb_log_group_home_dir', IF(SUBSTRING(@@global.innodb_log_group_home_dir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(v_undo_dir, IF(SUBSTRING(v_undo_dir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, v_undo_dir, CONCAT('@@innodb_undo_directory', IF(SUBSTRING(v_undo_dir, -1) = path_separator, path_separator, '')));
ELSEIF v_path LIKE CONCAT(@@global.basedir, IF(SUBSTRING(@@global.basedir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
SET v_path = REPLACE(v_path, @@global.basedir, CONCAT('@@basedir', IF(SUBSTRING(@@global.basedir, -1) = path_separator, path_separator, '')));
END IF;
RETURN v_path;
END$$
DELIMITER ;

81
scripts/sys_schema/functions/format_statement.sql Normal file
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS format_statement;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION format_statement (
statement LONGTEXT
)
RETURNS LONGTEXT
COMMENT '
Description
-----------
Formats a normalized statement, truncating it if it is > 64 characters long by default.
To configure the length to truncate the statement to by default, update the `statement_truncate_len`
variable with `sys_config` table to a different value. Alternatively, to change it just for just
your particular session, use `SET @sys.statement_truncate_len := <some new value>`.
Useful for printing statement related data from Performance Schema from
the command line.
Parameters
-----------
statement (LONGTEXT):
The statement to format.
Returns
-----------
LONGTEXT
Example
-----------
mysql> SELECT sys.format_statement(digest_text)
-> FROM performance_schema.events_statements_summary_by_digest
-> ORDER by sum_timer_wait DESC limit 5;
+-------------------------------------------------------------------+
| sys.format_statement(digest_text) |
+-------------------------------------------------------------------+
| CREATE SQL SECURITY INVOKER VI ... KE ? AND `variable_value` > ? |
| CREATE SQL SECURITY INVOKER VI ... ait` IS NOT NULL , `esc` . ... |
| CREATE SQL SECURITY INVOKER VI ... ait` IS NOT NULL , `sys` . ... |
| CREATE SQL SECURITY INVOKER VI ... , `compressed_size` ) ) DESC |
| CREATE SQL SECURITY INVOKER VI ... LIKE ? ORDER BY `timer_start` |
+-------------------------------------------------------------------+
5 rows in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
NO SQL
BEGIN
-- Check if we have the configured length, if not, init it
IF @sys.statement_truncate_len IS NULL THEN
SET @sys.statement_truncate_len = sys_get_config('statement_truncate_len', 64);
END IF;
IF CHAR_LENGTH(statement) > @sys.statement_truncate_len THEN
RETURN REPLACE(CONCAT(LEFT(statement, (@sys.statement_truncate_len/2)-2), ' ... ', RIGHT(statement, (@sys.statement_truncate_len/2)-2)), '\n', ' ');
ELSE
RETURN REPLACE(statement, '\n', ' ');
END IF;
END$$
DELIMITER ;

91
scripts/sys_schema/functions/format_time.sql Normal file
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS format_time;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION format_time (
-- We feed in and return TEXT here, as aggregates of
-- picoseconds can return numbers larger than BIGINT UNSIGNED
picoseconds TEXT
)
RETURNS TEXT CHARSET UTF8
COMMENT '
Description
-----------
Takes a raw picoseconds value, and converts it to a human readable form.
Picoseconds are the precision that all latency values are printed in
within Performance Schema, however are not user friendly when wanting
to scan output from the command line.
Parameters
-----------
picoseconds (TEXT):
The raw picoseconds value to convert.
Returns
-----------
TEXT
Example
-----------
mysql> select format_time(342342342342345);
+------------------------------+
| format_time(342342342342345) |
+------------------------------+
| 00:05:42 |
+------------------------------+
1 row in set (0.00 sec)
mysql> select format_time(342342342);
+------------------------+
| format_time(342342342) |
+------------------------+
| 342.34 us |
+------------------------+
1 row in set (0.00 sec)
mysql> select format_time(34234);
+--------------------+
| format_time(34234) |
+--------------------+
| 34.23 ns |
+--------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
NO SQL
BEGIN
IF picoseconds IS NULL THEN RETURN NULL;
ELSEIF picoseconds >= 604800000000000000 THEN RETURN CONCAT(ROUND(picoseconds / 604800000000000000, 2), ' w');
ELSEIF picoseconds >= 86400000000000000 THEN RETURN CONCAT(ROUND(picoseconds / 86400000000000000, 2), ' d');
ELSEIF picoseconds >= 3600000000000000 THEN RETURN CONCAT(ROUND(picoseconds / 3600000000000000, 2), ' h');
ELSEIF picoseconds >= 60000000000000 THEN RETURN CONCAT(ROUND(picoseconds / 60000000000000, 2), ' m');
ELSEIF picoseconds >= 1000000000000 THEN RETURN CONCAT(ROUND(picoseconds / 1000000000000, 2), ' s');
ELSEIF picoseconds >= 1000000000 THEN RETURN CONCAT(ROUND(picoseconds / 1000000000, 2), ' ms');
ELSEIF picoseconds >= 1000000 THEN RETURN CONCAT(ROUND(picoseconds / 1000000, 2), ' us');
ELSEIF picoseconds >= 1000 THEN RETURN CONCAT(ROUND(picoseconds / 1000, 2), ' ns');
ELSE RETURN CONCAT(picoseconds, ' ps');
END IF;
END$$
DELIMITER ;

90
scripts/sys_schema/functions/list_add.sql Normal file
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-- Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS list_add;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION list_add (
in_list TEXT,
in_add_value TEXT
)
RETURNS TEXT
COMMENT '
Description
-----------
Takes a list, and a value to add to the list, and returns the resulting list.
Useful for altering certain session variables, like sql_mode or optimizer_switch for instance.
Parameters
-----------
in_list (TEXT):
The comma separated list to add a value to
in_add_value (TEXT):
The value to add to the input list
Returns
-----------
TEXT
Example
--------
mysql> select @@sql_mode;
+-----------------------------------------------------------------------------------+
| @@sql_mode |
+-----------------------------------------------------------------------------------+
| ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |
+-----------------------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> set sql_mode = sys.list_add(@@sql_mode, ''ANSI_QUOTES'');
Query OK, 0 rows affected (0.06 sec)
mysql> select @@sql_mode;
+-----------------------------------------------------------------------------------------------+
| @@sql_mode |
+-----------------------------------------------------------------------------------------------+
| ANSI_QUOTES,ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |
+-----------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
CONTAINS SQL
BEGIN
IF (in_add_value IS NULL) THEN
SIGNAL SQLSTATE '02200'
SET MESSAGE_TEXT = 'Function sys.list_add: in_add_value input variable should not be NULL',
MYSQL_ERRNO = 1138;
END IF;
IF (in_list IS NULL OR LENGTH(in_list) = 0) THEN
-- return the new value as a single value list
RETURN in_add_value;
END IF;
RETURN (SELECT CONCAT(TRIM(BOTH ',' FROM TRIM(in_list)), ',', in_add_value));
END$$
DELIMITER ;

91
scripts/sys_schema/functions/list_drop.sql Normal file
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-- Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS list_drop;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION list_drop (
in_list TEXT,
in_drop_value TEXT
)
RETURNS TEXT
COMMENT '
Description
-----------
Takes a list, and a value to attempt to remove from the list, and returns the resulting list.
Useful for altering certain session variables, like sql_mode or optimizer_switch for instance.
Parameters
-----------
in_list (TEXT):
The comma separated list to drop a value from
in_drop_value (TEXT):
The value to drop from the input list
Returns
-----------
TEXT
Example
--------
mysql> select @@sql_mode;
+-----------------------------------------------------------------------------------------------+
| @@sql_mode |
+-----------------------------------------------------------------------------------------------+
| ANSI_QUOTES,ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |
+-----------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> set sql_mode = sys.list_drop(@@sql_mode, ''ONLY_FULL_GROUP_BY'');
Query OK, 0 rows affected (0.03 sec)
mysql> select @@sql_mode;
+----------------------------------------------------------------------------+
| @@sql_mode |
+----------------------------------------------------------------------------+
| ANSI_QUOTES,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |
+----------------------------------------------------------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
CONTAINS SQL
BEGIN
IF (in_drop_value IS NULL) THEN
SIGNAL SQLSTATE '02200'
SET MESSAGE_TEXT = 'Function sys.list_drop: in_drop_value input variable should not be NULL',
MYSQL_ERRNO = 1138;
END IF;
IF (in_list IS NULL OR LENGTH(in_list) = 0) THEN
-- return the list as it was passed in
RETURN in_list;
END IF;
-- ensure that leading / trailing commas are remove, support values with either spaces or not between commas
RETURN (SELECT TRIM(BOTH ',' FROM REPLACE(REPLACE(CONCAT(',', in_list), CONCAT(',', in_drop_value), ''), CONCAT(', ', in_drop_value), '')));
END$$
DELIMITER ;

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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_is_account_enabled;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_is_account_enabled (
in_host VARCHAR(60),
in_user VARCHAR(16)
)
RETURNS ENUM('YES', 'NO')
COMMENT '
Description
-----------
Determines whether instrumentation of an account is enabled
within Performance Schema.
Parameters
-----------
in_host VARCHAR(60):
The hostname of the account to check.
in_user (VARCHAR(16)):
The username of the account to check.
Returns
-----------
ENUM(\'YES\', \'NO\', \'PARTIAL\')
Example
-----------
mysql> SELECT sys.ps_is_account_enabled(\'localhost\', \'root\');
+------------------------------------------------+
| sys.ps_is_account_enabled(\'localhost\', \'root\') |
+------------------------------------------------+
| YES |
+------------------------------------------------+
1 row in set (0.01 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
READS SQL DATA
BEGIN
RETURN IF(EXISTS(SELECT 1
FROM performance_schema.setup_actors
WHERE (`HOST` = '%' OR in_host LIKE `HOST`)
AND (`USER` = '%' OR `USER` = in_user)
),
'YES', 'NO'
);
END$$
DELIMITER ;

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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_is_account_enabled;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_is_account_enabled (
in_host VARCHAR(60),
in_user VARCHAR(32)
)
RETURNS ENUM('YES', 'NO')
COMMENT '
Description
-----------
Determines whether instrumentation of an account is enabled
within Performance Schema.
Parameters
-----------
in_host VARCHAR(60):
The hostname of the account to check.
in_user VARCHAR(32):
The username of the account to check.
Returns
-----------
ENUM(\'YES\', \'NO\', \'PARTIAL\')
Example
-----------
mysql> SELECT sys.ps_is_account_enabled(\'localhost\', \'root\');
+------------------------------------------------+
| sys.ps_is_account_enabled(\'localhost\', \'root\') |
+------------------------------------------------+
| YES |
+------------------------------------------------+
1 row in set (0.01 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
READS SQL DATA
BEGIN
RETURN IF(EXISTS(SELECT 1
FROM performance_schema.setup_actors
WHERE (`HOST` = '%' OR in_host LIKE `HOST`)
AND (`USER` = '%' OR `USER` = in_user)
AND (`ENABLED` = 'YES')
),
'YES', 'NO'
);
END$$
DELIMITER ;

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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_is_consumer_enabled;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_is_consumer_enabled (
in_consumer varchar(64)
)
RETURNS enum('YES', 'NO')
COMMENT '
Description
-----------
Determines whether a consumer is enabled (taking the consumer hierarchy into consideration)
within the Performance Schema.
Parameters
-----------
in_consumer VARCHAR(64):
The name of the consumer to check.
Returns
-----------
ENUM(\'YES\', \'NO\')
Example
-----------
mysql> SELECT sys.ps_is_consumer_enabled(\'events_stages_history\');
+-----------------------------------------------------+
| sys.ps_is_consumer_enabled(\'events_stages_history\') |
+-----------------------------------------------------+
| NO |
+-----------------------------------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
READS SQL DATA
BEGIN
RETURN (
SELECT (CASE
WHEN c.NAME = 'global_instrumentation' THEN c.ENABLED
WHEN c.NAME = 'thread_instrumentation' THEN IF(cg.ENABLED = 'YES' AND c.ENABLED = 'YES', 'YES', 'NO')
WHEN c.NAME LIKE '%\_digest' THEN IF(cg.ENABLED = 'YES' AND c.ENABLED = 'YES', 'YES', 'NO')
WHEN c.NAME LIKE '%\_current' THEN IF(cg.ENABLED = 'YES' AND ct.ENABLED = 'YES' AND c.ENABLED = 'YES', 'YES', 'NO')
ELSE IF(cg.ENABLED = 'YES' AND ct.ENABLED = 'YES' AND c.ENABLED = 'YES'
AND ( SELECT cc.ENABLED FROM performance_schema.setup_consumers cc WHERE NAME = CONCAT(SUBSTRING_INDEX(c.NAME, '_', 2), '_current')
) = 'YES', 'YES', 'NO')
END) AS IsEnabled
FROM performance_schema.setup_consumers c
INNER JOIN performance_schema.setup_consumers cg
INNER JOIN performance_schema.setup_consumers ct
WHERE cg.NAME = 'global_instrumentation'
AND ct.NAME = 'thread_instrumentation'
AND c.NAME = in_consumer
);
END$$
DELIMITER ;

76
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@ -0,0 +1,76 @@
-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_is_instrument_default_enabled;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_is_instrument_default_enabled (
in_instrument VARCHAR(128)
)
RETURNS ENUM('YES', 'NO')
COMMENT '
Description
-----------
Returns whether an instrument is enabled by default in this version of MySQL.
Parameters
-----------
in_instrument VARCHAR(128):
The instrument to check.
Returns
-----------
ENUM(\'YES\', \'NO\')
Example
-----------
mysql> SELECT sys.ps_is_instrument_default_enabled(\'statement/sql/select\');
+--------------------------------------------------------------+
| sys.ps_is_instrument_default_enabled(\'statement/sql/select\') |
+--------------------------------------------------------------+
| YES |
+--------------------------------------------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
READS SQL DATA
BEGIN
DECLARE v_enabled ENUM('YES', 'NO');
-- Currently the same in all versions
SET v_enabled = IF(in_instrument LIKE 'wait/io/file/%'
OR in_instrument LIKE 'wait/io/table/%'
OR in_instrument LIKE 'statement/%'
OR in_instrument LIKE 'memory/performance_schema/%'
OR in_instrument IN ('wait/lock/table/sql/handler', 'idle')
/*!50707
OR in_instrument LIKE 'stage/innodb/%'
OR in_instrument = 'stage/sql/copy to tmp table'
*/
,
'YES',
'NO'
);
RETURN v_enabled;
END$$
DELIMITER ;

75
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@ -0,0 +1,75 @@
-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_is_instrument_default_timed;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_is_instrument_default_timed (
in_instrument VARCHAR(128)
)
RETURNS ENUM('YES', 'NO')
COMMENT '
Description
-----------
Returns whether an instrument is timed by default in this version of MySQL.
Parameters
-----------
in_instrument VARCHAR(128):
The instrument to check.
Returns
-----------
ENUM(\'YES\', \'NO\')
Example
-----------
mysql> SELECT sys.ps_is_instrument_default_timed(\'statement/sql/select\');
+------------------------------------------------------------+
| sys.ps_is_instrument_default_timed(\'statement/sql/select\') |
+------------------------------------------------------------+
| YES |
+------------------------------------------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
READS SQL DATA
BEGIN
DECLARE v_timed ENUM('YES', 'NO');
-- Currently the same in all versions
SET v_timed = IF(in_instrument LIKE 'wait/io/file/%'
OR in_instrument LIKE 'wait/io/table/%'
OR in_instrument LIKE 'statement/%'
OR in_instrument IN ('wait/lock/table/sql/handler', 'idle')
/*!50707
OR in_instrument LIKE 'stage/innodb/%'
OR in_instrument = 'stage/sql/copy to tmp table'
*/
,
'YES',
'NO'
);
RETURN v_timed;
END$$
DELIMITER ;

72
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@ -0,0 +1,72 @@
-- Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_is_thread_instrumented;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_is_thread_instrumented (
in_connection_id BIGINT UNSIGNED
) RETURNS ENUM('YES', 'NO', 'UNKNOWN')
COMMENT '
Description
-----------
Checks whether the provided connection id is instrumented within Performance Schema.
Parameters
-----------
in_connection_id (BIGINT UNSIGNED):
The id of the connection to check.
Returns
-----------
ENUM(\'YES\', \'NO\', \'UNKNOWN\')
Example
-----------
mysql> SELECT sys.ps_is_thread_instrumented(CONNECTION_ID());
+------------------------------------------------+
| sys.ps_is_thread_instrumented(CONNECTION_ID()) |
+------------------------------------------------+
| YES |
+------------------------------------------------+
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
READS SQL DATA
BEGIN
DECLARE v_enabled ENUM('YES', 'NO', 'UNKNOWN');
IF (in_connection_id IS NULL) THEN
RETURN NULL;
END IF;
SELECT INSTRUMENTED INTO v_enabled
FROM performance_schema.threads
WHERE PROCESSLIST_ID = in_connection_id;
IF (v_enabled IS NULL) THEN
RETURN 'UNKNOWN';
ELSE
RETURN v_enabled;
END IF;
END$$
DELIMITER ;

71
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-- Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_thread_account;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_thread_account (
in_thread_id BIGINT UNSIGNED
) RETURNS TEXT
COMMENT '
Description
-----------
Return the user@host account for the given Performance Schema thread id.
Parameters
-----------
in_thread_id (BIGINT UNSIGNED):
The id of the thread to return the account for.
Example
-----------
mysql> select thread_id, processlist_user, processlist_host from performance_schema.threads where type = ''foreground'';
+-----------+------------------+------------------+
| thread_id | processlist_user | processlist_host |
+-----------+------------------+------------------+
| 23 | NULL | NULL |
| 30 | root | localhost |
| 31 | msandbox | localhost |
| 32 | msandbox | localhost |
+-----------+------------------+------------------+
4 rows in set (0.00 sec)
mysql> select sys.ps_thread_account(31);
+---------------------------+
| sys.ps_thread_account(31) |
+---------------------------+
| msandbox@localhost |
+---------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
READS SQL DATA
BEGIN
RETURN (SELECT IF(
type = 'FOREGROUND',
CONCAT(processlist_user, '@', processlist_host),
type
) AS account
FROM `performance_schema`.`threads`
WHERE thread_id = in_thread_id);
END$$
DELIMITER ;

66
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_thread_id;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_thread_id (
in_connection_id BIGINT UNSIGNED
) RETURNS BIGINT UNSIGNED
COMMENT '
Description
-----------
Return the Performance Schema THREAD_ID for the specified connection ID.
Parameters
-----------
in_connection_id (BIGINT UNSIGNED):
The id of the connection to return the thread id for. If NULL, the current
connection thread id is returned.
Example
-----------
mysql> SELECT sys.ps_thread_id(79);
+----------------------+
| sys.ps_thread_id(79) |
+----------------------+
| 98 |
+----------------------+
1 row in set (0.00 sec)
mysql> SELECT sys.ps_thread_id(CONNECTION_ID());
+-----------------------------------+
| sys.ps_thread_id(CONNECTION_ID()) |
+-----------------------------------+
| 98 |
+-----------------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
READS SQL DATA
BEGIN
RETURN (SELECT THREAD_ID
FROM `performance_schema`.`threads`
WHERE PROCESSLIST_ID = IFNULL(in_connection_id, CONNECTION_ID())
);
END$$
DELIMITER ;

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@ -0,0 +1,171 @@
-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_thread_stack;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_thread_stack (
thd_id BIGINT UNSIGNED,
debug BOOLEAN
)
RETURNS LONGTEXT CHARSET latin1
COMMENT '
Description
-----------
Outputs a JSON formatted stack of all statements, stages and events
within Performance Schema for the specified thread.
Parameters
-----------
thd_id (BIGINT UNSIGNED):
The id of the thread to trace. This should match the thread_id
column from the performance_schema.threads table.
in_verbose (BOOLEAN):
Include file:lineno information in the events.
Example
-----------
(line separation added for output)
mysql> SELECT sys.ps_thread_stack(37, FALSE) AS thread_stack\\G
*************************** 1. row ***************************
thread_stack: {"rankdir": "LR","nodesep": "0.10","stack_created": "2014-02-19 13:39:03",
"mysql_version": "5.7.3-m13","mysql_user": "root@localhost","events":
[{"nesting_event_id": "0", "event_id": "10", "timer_wait": 256.35, "event_info":
"sql/select", "wait_info": "select @@version_comment limit 1\\nerrors: 0\\nwarnings: 0\\nlock time:
...
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
READS SQL DATA
BEGIN
DECLARE json_objects LONGTEXT;
/*!50602
-- Do not track the current thread, it will kill the stack
UPDATE performance_schema.threads
SET instrumented = 'NO'
WHERE processlist_id = CONNECTION_ID();
*/
SET SESSION group_concat_max_len=@@global.max_allowed_packet;
-- Select the entire stack of events
SELECT GROUP_CONCAT(CONCAT( '{'
, CONCAT_WS( ', '
, CONCAT('"nesting_event_id": "', IF(nesting_event_id IS NULL, '0', nesting_event_id), '"')
, CONCAT('"event_id": "', event_id, '"')
-- Convert from picoseconds to microseconds
, CONCAT( '"timer_wait": ', ROUND(timer_wait/1000000, 2))
, CONCAT( '"event_info": "'
, CASE
WHEN event_name NOT LIKE 'wait/io%' THEN REPLACE(SUBSTRING_INDEX(event_name, '/', -2), '\\', '\\\\')
WHEN event_name NOT LIKE 'wait/io/file%' OR event_name NOT LIKE 'wait/io/socket%' THEN REPLACE(SUBSTRING_INDEX(event_name, '/', -4), '\\', '\\\\')
ELSE event_name
END
, '"'
)
-- Always dump the extra wait information gathered for statements
, CONCAT( '"wait_info": "', IFNULL(wait_info, ''), '"')
-- If debug is enabled, add the file:lineno information for waits
, CONCAT( '"source": "', IF(true AND event_name LIKE 'wait%', IFNULL(wait_info, ''), ''), '"')
-- Depending on the type of event, name it appropriately
, CASE
WHEN event_name LIKE 'wait/io/file%' THEN '"event_type": "io/file"'
WHEN event_name LIKE 'wait/io/table%' THEN '"event_type": "io/table"'
WHEN event_name LIKE 'wait/io/socket%' THEN '"event_type": "io/socket"'
WHEN event_name LIKE 'wait/synch/mutex%' THEN '"event_type": "synch/mutex"'
WHEN event_name LIKE 'wait/synch/cond%' THEN '"event_type": "synch/cond"'
WHEN event_name LIKE 'wait/synch/rwlock%' THEN '"event_type": "synch/rwlock"'
WHEN event_name LIKE 'wait/lock%' THEN '"event_type": "lock"'
WHEN event_name LIKE 'statement/%' THEN '"event_type": "stmt"'
WHEN event_name LIKE 'stage/%' THEN '"event_type": "stage"'
WHEN event_name LIKE '%idle%' THEN '"event_type": "idle"'
ELSE ''
END
)
, '}'
)
ORDER BY event_id ASC SEPARATOR ',') event
INTO json_objects
FROM (
/*!50600
-- Select all statements, with the extra tracing information available
(SELECT thread_id, event_id, event_name, timer_wait, timer_start, nesting_event_id,
CONCAT(sql_text, '\\n',
'errors: ', errors, '\\n',
'warnings: ', warnings, '\\n',
'lock time: ', ROUND(lock_time/1000000, 2),'us\\n',
'rows affected: ', rows_affected, '\\n',
'rows sent: ', rows_sent, '\\n',
'rows examined: ', rows_examined, '\\n',
'tmp tables: ', created_tmp_tables, '\\n',
'tmp disk tables: ', created_tmp_disk_tables, '\\n',
'select scan: ', select_scan, '\\n',
'select full join: ', select_full_join, '\\n',
'select full range join: ', select_full_range_join, '\\n',
'select range: ', select_range, '\\n',
'select range check: ', select_range_check, '\\n',
'sort merge passes: ', sort_merge_passes, '\\n',
'sort rows: ', sort_rows, '\\n',
'sort range: ', sort_range, '\\n',
'sort scan: ', sort_scan, '\\n',
'no index used: ', IF(no_index_used, 'TRUE', 'FALSE'), '\\n',
'no good index used: ', IF(no_good_index_used, 'TRUE', 'FALSE'), '\\n'
) AS wait_info
FROM performance_schema.events_statements_history_long WHERE thread_id = thd_id)
UNION
-- Select all stages
(SELECT thread_id, event_id, event_name, timer_wait, timer_start, nesting_event_id, null AS wait_info
FROM performance_schema.events_stages_history_long WHERE thread_id = thd_id)
UNION */
-- Select all events, adding information appropriate to the event
(SELECT thread_id, event_id,
CONCAT(event_name ,
IF(event_name NOT LIKE 'wait/synch/mutex%', IFNULL(CONCAT(' - ', operation), ''), ''),
IF(number_of_bytes IS NOT NULL, CONCAT(' ', number_of_bytes, ' bytes'), ''),
IF(event_name LIKE 'wait/io/file%', '\\n', ''),
IF(object_schema IS NOT NULL, CONCAT('\\nObject: ', object_schema, '.'), ''),
IF(object_name IS NOT NULL,
IF (event_name LIKE 'wait/io/socket%',
-- Print the socket if used, else the IP:port as reported
CONCAT(IF (object_name LIKE ':0%', @@socket, object_name)),
object_name),
''),
/*!50600 IF(index_name IS NOT NULL, CONCAT(' Index: ', index_name), ''),*/'\\n'
) AS event_name,
timer_wait, timer_start, nesting_event_id, source AS wait_info
FROM performance_schema.events_waits_history_long WHERE thread_id = thd_id)) events
ORDER BY event_id;
RETURN CONCAT('{',
CONCAT_WS(',',
'"rankdir": "LR"',
'"nodesep": "0.10"',
CONCAT('"stack_created": "', NOW(), '"'),
CONCAT('"mysql_version": "', VERSION(), '"'),
CONCAT('"mysql_user": "', CURRENT_USER(), '"'),
CONCAT('"events": [', IFNULL(json_objects,''), ']')
),
'}');
END$$
DELIMITER ;

233
scripts/sys_schema/functions/ps_thread_trx_info.sql Normal file
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@ -0,0 +1,233 @@
-- Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_thread_trx_info;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION ps_thread_trx_info (
in_thread_id BIGINT UNSIGNED
) RETURNS LONGTEXT
COMMENT '
Description
-----------
Returns a JSON object with info on the given threads current transaction,
and the statements it has already executed, derived from the
performance_schema.events_transactions_current and
performance_schema.events_statements_history tables (so the consumers
for these also have to be enabled within Performance Schema to get full
data in the object).
When the output exceeds the default truncation length (65535), a JSON error
object is returned, such as:
{ "error": "Trx info truncated: Row 6 was cut by GROUP_CONCAT()" }
Similar error objects are returned for other warnings/and exceptions raised
when calling the function.
The max length of the output of this function can be controlled with the
ps_thread_trx_info.max_length variable set via sys_config, or the
@sys.ps_thread_trx_info.max_length user variable, as appropriate.
Parameters
-----------
in_thread_id (BIGINT UNSIGNED):
The id of the thread to return the transaction info for.
Example
-----------
SELECT sys.ps_thread_trx_info(48)\\G
*************************** 1. row ***************************
sys.ps_thread_trx_info(48): [
{
"time": "790.70 us",
"state": "COMMITTED",
"mode": "READ WRITE",
"autocommitted": "NO",
"gtid": "AUTOMATIC",
"isolation": "REPEATABLE READ",
"statements_executed": [
{
"sql_text": "INSERT INTO info VALUES (1, \'foo\')",
"time": "471.02 us",
"schema": "trx",
"rows_examined": 0,
"rows_affected": 1,
"rows_sent": 0,
"tmp_tables": 0,
"tmp_disk_tables": 0,
"sort_rows": 0,
"sort_merge_passes": 0
},
{
"sql_text": "COMMIT",
"time": "254.42 us",
"schema": "trx",
"rows_examined": 0,
"rows_affected": 0,
"rows_sent": 0,
"tmp_tables": 0,
"tmp_disk_tables": 0,
"sort_rows": 0,
"sort_merge_passes": 0
}
]
},
{
"time": "426.20 us",
"state": "COMMITTED",
"mode": "READ WRITE",
"autocommitted": "NO",
"gtid": "AUTOMATIC",
"isolation": "REPEATABLE READ",
"statements_executed": [
{
"sql_text": "INSERT INTO info VALUES (2, \'bar\')",
"time": "107.33 us",
"schema": "trx",
"rows_examined": 0,
"rows_affected": 1,
"rows_sent": 0,
"tmp_tables": 0,
"tmp_disk_tables": 0,
"sort_rows": 0,
"sort_merge_passes": 0
},
{
"sql_text": "COMMIT",
"time": "213.23 us",
"schema": "trx",
"rows_examined": 0,
"rows_affected": 0,
"rows_sent": 0,
"tmp_tables": 0,
"tmp_disk_tables": 0,
"sort_rows": 0,
"sort_merge_passes": 0
}
]
}
]
1 row in set (0.03 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
READS SQL DATA
BEGIN
DECLARE v_output LONGTEXT DEFAULT '{}';
DECLARE v_msg_text TEXT DEFAULT '';
DECLARE v_signal_msg TEXT DEFAULT '';
DECLARE v_mysql_errno INT;
DECLARE v_max_output_len BIGINT;
-- Capture warnings/errors such as group_concat truncation
-- and report as JSON error objects
DECLARE EXIT HANDLER FOR SQLWARNING, SQLEXCEPTION
BEGIN
GET DIAGNOSTICS CONDITION 1
v_msg_text = MESSAGE_TEXT,
v_mysql_errno = MYSQL_ERRNO;
IF v_mysql_errno = 1260 THEN
SET v_signal_msg = CONCAT('{ "error": "Trx info truncated: ', v_msg_text, '" }');
ELSE
SET v_signal_msg = CONCAT('{ "error": "', v_msg_text, '" }');
END IF;
RETURN v_signal_msg;
END;
-- Set configuration options
IF (@sys.ps_thread_trx_info.max_length IS NULL) THEN
SET @sys.ps_thread_trx_info.max_length = sys.sys_get_config('ps_thread_trx_info.max_length', 65535);
END IF;
IF (@sys.ps_thread_trx_info.max_length != @@session.group_concat_max_len) THEN
SET @old_group_concat_max_len = @@session.group_concat_max_len;
-- Convert to int value for the SET, and give some surrounding space
SET v_max_output_len = (@sys.ps_thread_trx_info.max_length - 5);
SET SESSION group_concat_max_len = v_max_output_len;
END IF;
SET v_output = (
SELECT CONCAT('[', IFNULL(GROUP_CONCAT(trx_info ORDER BY event_id), ''), '\n]') AS trx_info
FROM (SELECT trxi.thread_id,
trxi.event_id,
GROUP_CONCAT(
IFNULL(
CONCAT('\n {\n',
' "time": "', IFNULL(sys.format_time(trxi.timer_wait), ''), '",\n',
' "state": "', IFNULL(trxi.state, ''), '",\n',
' "mode": "', IFNULL(trxi.access_mode, ''), '",\n',
' "autocommitted": "', IFNULL(trxi.autocommit, ''), '",\n',
' "gtid": "', IFNULL(trxi.gtid, ''), '",\n',
' "isolation": "', IFNULL(trxi.isolation_level, ''), '",\n',
' "statements_executed": [', IFNULL(s.stmts, ''), IF(s.stmts IS NULL, ' ]\n', '\n ]\n'),
' }'
),
'')
ORDER BY event_id) AS trx_info
FROM (
(SELECT thread_id, event_id, timer_wait, state,access_mode, autocommit, gtid, isolation_level
FROM performance_schema.events_transactions_current
WHERE thread_id = in_thread_id
AND end_event_id IS NULL)
UNION
(SELECT thread_id, event_id, timer_wait, state,access_mode, autocommit, gtid, isolation_level
FROM performance_schema.events_transactions_history
WHERE thread_id = in_thread_id)
) AS trxi
LEFT JOIN (SELECT thread_id,
nesting_event_id,
GROUP_CONCAT(
IFNULL(
CONCAT('\n {\n',
' "sql_text": "', IFNULL(sys.format_statement(REPLACE(sql_text, '\\', '\\\\')), ''), '",\n',
' "time": "', IFNULL(sys.format_time(timer_wait), ''), '",\n',
' "schema": "', IFNULL(current_schema, ''), '",\n',
' "rows_examined": ', IFNULL(rows_examined, ''), ',\n',
' "rows_affected": ', IFNULL(rows_affected, ''), ',\n',
' "rows_sent": ', IFNULL(rows_sent, ''), ',\n',
' "tmp_tables": ', IFNULL(created_tmp_tables, ''), ',\n',
' "tmp_disk_tables": ', IFNULL(created_tmp_disk_tables, ''), ',\n',
' "sort_rows": ', IFNULL(sort_rows, ''), ',\n',
' "sort_merge_passes": ', IFNULL(sort_merge_passes, ''), '\n',
' }'), '') ORDER BY event_id) AS stmts
FROM performance_schema.events_statements_history
WHERE sql_text IS NOT NULL
AND thread_id = in_thread_id
GROUP BY thread_id, nesting_event_id
) AS s
ON trxi.thread_id = s.thread_id
AND trxi.event_id = s.nesting_event_id
WHERE trxi.thread_id = in_thread_id
GROUP BY trxi.thread_id, trxi.event_id
) trxs
GROUP BY thread_id
);
IF (@old_group_concat_max_len IS NOT NULL) THEN
SET SESSION group_concat_max_len = @old_group_concat_max_len;
END IF;
RETURN v_output;
END$$
DELIMITER ;

71
scripts/sys_schema/functions/quote_identifier.sql Normal file
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-- Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS quote_identifier;
DELIMITER $$
-- https://dev.mysql.com/doc/refman/5.7/en/identifiers.html
-- Maximum supported length for any of the current identifiers in 5.7.5+ is 256 characters.
-- Before that, user variables could have any length.
--
-- Based on Paul Dubois' suggestion in Bug #78823/Bug #22011361.
CREATE DEFINER='root'@'localhost' FUNCTION quote_identifier(in_identifier TEXT)
RETURNS TEXT CHARSET UTF8
COMMENT '
Description
-----------
Takes an unquoted identifier (schema name, table name, etc.) and
returns the identifier quoted with backticks.
Parameters
-----------
in_identifier (TEXT):
The identifier to quote.
Returns
-----------
TEXT
Example
-----------
mysql> SELECT sys.quote_identifier(''my_identifier'') AS Identifier;
+-----------------+
| Identifier |
+-----------------+
| `my_identifier` |
+-----------------+
1 row in set (0.00 sec)
mysql> SELECT sys.quote_identifier(''my`idenfier'') AS Identifier;
+----------------+
| Identifier |
+----------------+
| `my``idenfier` |
+----------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
DETERMINISTIC
NO SQL
BEGIN
RETURN CONCAT('`', REPLACE(in_identifier, '`', '``'), '`');
END$$
DELIMITER ;

98
scripts/sys_schema/functions/sys_get_config.sql Normal file
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS sys_get_config;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION sys_get_config (
in_variable_name VARCHAR(128),
in_default_value VARCHAR(128)
)
RETURNS VARCHAR(128)
COMMENT '
Description
-----------
Returns the value for the requested variable using the following logic:
1. If the option exists in sys.sys_config return the value from there.
2. Else fall back on the provided default value.
Notes for using sys_get_config():
* If the default value argument to sys_get_config() is NULL and case 2. is reached, NULL is returned.
It is then expected that the caller is able to handle NULL for the given configuration option.
* The convention is to name the user variables @sys.<name of variable>. It is <name of variable> that
is stored in the sys_config table and is what is expected as the argument to sys_get_config().
* If you want to check whether the configuration option has already been set and if not assign with
the return value of sys_get_config() you can use IFNULL(...) (see example below). However this should
not be done inside a loop (e.g. for each row in a result set) as for repeated calls where assignment
is only needed in the first iteration using IFNULL(...) is expected to be significantly slower than
using an IF (...) THEN ... END IF; block (see example below).
Parameters
-----------
in_variable_name (VARCHAR(128)):
The name of the config option to return the value for.
in_default_value (VARCHAR(128)):
The default value to return if the variable does not exist in sys.sys_config.
Returns
-----------
VARCHAR(128)
Example
-----------
-- Get the configuration value from sys.sys_config falling back on 128 if the option is not present in the table.
mysql> SELECT sys.sys_get_config(''statement_truncate_len'', 128) AS Value;
+-------+
| Value |
+-------+
| 64 |
+-------+
1 row in set (0.00 sec)
-- Check whether the option is already set, if not assign - IFNULL(...) one liner example.
mysql> SET @sys.statement_truncate_len = IFNULL(@sys.statement_truncate_len, sys.sys_get_config(''statement_truncate_len'', 64));
Query OK, 0 rows affected (0.00 sec)
-- Check whether the option is already set, if not assign - IF ... THEN ... END IF example.
IF (@sys.statement_truncate_len IS NULL) THEN
SET @sys.statement_truncate_len = sys.sys_get_config(''statement_truncate_len'', 64);
END IF;
'
SQL SECURITY INVOKER
DETERMINISTIC
READS SQL DATA
BEGIN
DECLARE v_value VARCHAR(128) DEFAULT NULL;
-- Check if we have the variable in the sys.sys_config table
SET v_value = (SELECT value FROM sys.sys_config WHERE variable = in_variable_name);
-- Protection against the variable not existing in sys_config
IF (v_value IS NULL) THEN
SET v_value = in_default_value;
END IF;
RETURN v_value;
END $$
DELIMITER ;

51
scripts/sys_schema/functions/version_major.sql Normal file
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS version_major;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION version_major ()
RETURNS TINYINT UNSIGNED
COMMENT '
Description
-----------
Returns the major version of MySQL Server.
Returns
-----------
TINYINT UNSIGNED
Example
-----------
mysql> SELECT VERSION(), sys.version_major();
+--------------------------------------+---------------------+
| VERSION() | sys.version_major() |
+--------------------------------------+---------------------+
| 5.7.9-enterprise-commercial-advanced | 5 |
+--------------------------------------+---------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
NO SQL
BEGIN
RETURN SUBSTRING_INDEX(SUBSTRING_INDEX(VERSION(), '-', 1), '.', 1);
END$$
DELIMITER ;

51
scripts/sys_schema/functions/version_minor.sql Normal file
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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS version_minor;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION version_minor ()
RETURNS TINYINT UNSIGNED
COMMENT '
Description
-----------
Returns the minor (release series) version of MySQL Server.
Returns
-----------
TINYINT UNSIGNED
Example
-----------
mysql> SELECT VERSION(), sys.server_minor();
+--------------------------------------+---------------------+
| VERSION() | sys.version_minor() |
+--------------------------------------+---------------------+
| 5.7.9-enterprise-commercial-advanced | 7 |
+--------------------------------------+---------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
NO SQL
BEGIN
RETURN SUBSTRING_INDEX(SUBSTRING_INDEX(SUBSTRING_INDEX(VERSION(), '-', 1), '.', 2), '.', -1);
END$$
DELIMITER ;

51
scripts/sys_schema/functions/version_patch.sql Normal file
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@ -0,0 +1,51 @@
-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS version_patch;
DELIMITER $$
CREATE DEFINER='root'@'localhost' FUNCTION version_patch ()
RETURNS TINYINT UNSIGNED
COMMENT '
Description
-----------
Returns the patch release version of MySQL Server.
Returns
-----------
TINYINT UNSIGNED
Example
-----------
mysql> SELECT VERSION(), sys.version_patch();
+--------------------------------------+---------------------+
| VERSION() | sys.version_patch() |
+--------------------------------------+---------------------+
| 5.7.9-enterprise-commercial-advanced | 9 |
+--------------------------------------+---------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
NO SQL
BEGIN
RETURN SUBSTRING_INDEX(SUBSTRING_INDEX(VERSION(), '-', 1), '.', -1);
END$$
DELIMITER ;