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Fix problems with MySQL-DB > 5.7.5 and some SilverStripe modules

0.0.2 2017-11-28 20:32 UTC

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Last update: 2024-04-19 00:10:48 UTC


This is intended to fix problem Expression #1 of ORDER BY clause is not in SELECT list.....which is not in SELECT list; this is incompatible with DISTINCT caused by some modules.

The distinct error occures with MySQL >5.7.5 where the option ONLY_FULL_GROUP_BY became part of the combination on ANSI (which also includes 'REAL_AS_FLOAT, PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE') used by SilverStripe for sql_mode.

( See also here https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sql-mode-combo )

This module introduces the MySQL57Database class which extends the MySQLDatabase class, or better overwrites the connect() method using the sql_mode 'REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE' and instead of to 'ANSI'.

Maintainer Contact

Spliff Splendor <Spliff (dot) Splendor (at) gmail (dot) com>


  • SilverStripe 3.3 or newer


  • If using composer, run composer require spliffs/mysqlfixer.
  • Otherwise, download, unzip and copy the 'mysqlfixer' folder to your project root so that it becomes a sibling of framework/.


Add this to your _config.php (right after 'require_once("conf/ConfigureFromEnv.php");') or in your _ss_environment.php where you configure your database.

Sample/Excerpt _ss_environment.php

// DB config
define('SS_DATABASE_CLASS', 'MySQL57Database');`
define('SS_DATABASE_SERVER',   'mysql5.7.20.local');
define('SS_DATABASE_USERNAME', 'dbuser');
define('SS_DATABASE_PASSWORD', 'top-secret-password');
define('SS_DATABASE_NAME',   'ss_mysite');

Sample mysite/_config.php

global $project;
$project = 'mysite';

global $database;
$database = 'SS_mysite';


global $databaseConfig;

$databaseConfig = array(
	"type" => 'MySQL57Database',
	"server" => 'mysql5.7.20.local',
	"username" => 'dbuser',
	"password" => 'top-secret-password',
	"database" => 'ss_mysite',


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