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MDEV-9077 add sys_schema from https://github.com/mysql/mysql-sys
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Vladislav Vaintroub
108
scripts/sys_schema/functions/format_path.sql
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108
scripts/sys_schema/functions/format_path.sql
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-- Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; version 2 of the License.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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DROP FUNCTION IF EXISTS format_path;
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DELIMITER $$
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CREATE DEFINER='root'@'localhost' FUNCTION format_path (
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in_path VARCHAR(512)
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)
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RETURNS VARCHAR(512) CHARSET UTF8
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COMMENT '
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Description
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-----------
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Takes a raw path value, and strips out the datadir or tmpdir
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replacing with @@datadir and @@tmpdir respectively.
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Also normalizes the paths across operating systems, so backslashes
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on Windows are converted to forward slashes
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Parameters
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-----------
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path (VARCHAR(512)):
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The raw file path value to format.
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Returns
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-----------
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VARCHAR(512) CHARSET UTF8
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Example
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-----------
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mysql> select @@datadir;
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+-----------------------------------------------+
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| @@datadir |
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+-----------------------------------------------+
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| /Users/mark/sandboxes/SmallTree/AMaster/data/ |
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+-----------------------------------------------+
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1 row in set (0.06 sec)
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mysql> select format_path(\'/Users/mark/sandboxes/SmallTree/AMaster/data/mysql/proc.MYD\') AS path;
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+--------------------------+
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| path |
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+--------------------------+
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| @@datadir/mysql/proc.MYD |
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+--------------------------+
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1 row in set (0.03 sec)
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'
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SQL SECURITY INVOKER
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DETERMINISTIC
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NO SQL
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BEGIN
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DECLARE v_path VARCHAR(512);
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DECLARE v_undo_dir VARCHAR(1024);
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DECLARE path_separator CHAR(1) DEFAULT '/';
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IF @@global.version_compile_os LIKE 'win%' THEN
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SET path_separator = '\\';
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END IF;
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-- OSX hides /private/ in variables, but Performance Schema does not
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IF in_path LIKE '/private/%' THEN
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SET v_path = REPLACE(in_path, '/private', '');
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ELSE
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SET v_path = in_path;
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END IF;
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-- @@global.innodb_undo_directory is only set when separate undo logs are used
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SET v_undo_dir = IFNULL((SELECT VARIABLE_VALUE FROM information_schema.GLOBAL_VARIABLES WHERE VARIABLE_NAME = 'innodb_undo_directory'), '');
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IF v_path IS NULL THEN
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RETURN NULL;
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ELSEIF v_path LIKE CONCAT(@@global.datadir, IF(SUBSTRING(@@global.datadir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
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SET v_path = REPLACE(v_path, @@global.datadir, CONCAT('@@datadir', IF(SUBSTRING(@@global.datadir, -1) = path_separator, path_separator, '')));
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ELSEIF v_path LIKE CONCAT(@@global.tmpdir, IF(SUBSTRING(@@global.tmpdir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
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SET v_path = REPLACE(v_path, @@global.tmpdir, CONCAT('@@tmpdir', IF(SUBSTRING(@@global.tmpdir, -1) = path_separator, path_separator, '')));
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ELSEIF v_path LIKE CONCAT(@@global.slave_load_tmpdir, IF(SUBSTRING(@@global.slave_load_tmpdir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
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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, '')));
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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
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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, '')));
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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
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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, '')));
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ELSEIF v_path LIKE CONCAT(v_undo_dir, IF(SUBSTRING(v_undo_dir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
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SET v_path = REPLACE(v_path, v_undo_dir, CONCAT('@@innodb_undo_directory', IF(SUBSTRING(v_undo_dir, -1) = path_separator, path_separator, '')));
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ELSEIF v_path LIKE CONCAT(@@global.basedir, IF(SUBSTRING(@@global.basedir, -1) = path_separator, '%', CONCAT(path_separator, '%'))) ESCAPE '|' THEN
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SET v_path = REPLACE(v_path, @@global.basedir, CONCAT('@@basedir', IF(SUBSTRING(@@global.basedir, -1) = path_separator, path_separator, '')));
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END IF;
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RETURN v_path;
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END$$
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DELIMITER ;
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