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

2025-07-30 16:24:05 +03:00 · 2021-03-17 17:57:11 +01:00
parent 7c5c6fa65c
commit 4bac804c90
179 changed files with 21600 additions and 0 deletions
--- a/scripts/sys_schema/functions/list_add.sql
+++ b/scripts/sys_schema/functions/list_add.sql
@ -0,0 +1,90 @@
+-- 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 ;