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Update user documentation

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The documentation mentions a bug in MariaDB 10.2.9 that causes problems
with the new users query.
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Markus Mäkelä 2018-09-20 13:04:54 +03:00
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28
Documentation/Getting-Started/Configuration-Guide.md
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@ -909,30 +909,12 @@ GRANT SELECT ON mysql.roles_mapping TO 'maxscale'@'maxscalehost';
GRANT SHOW DATABASES ON *.* TO 'maxscale'@'maxscalehost';
```
MariaDB MaxScale will execute the following query to retrieve the users. If you
suspect that you might have problems with grants, it is recommended to run this
query and see the results it returns.
See [MaxScale Troubleshooting](https://mariadb.com/kb/en/mariadb-enterprise/maxscale-troubleshooting/)
for more information on how to troubleshoot authentication related problems.
```
SELECT DISTINCT
user.user AS user,
user.host AS host,
user.password AS password,
concat(user.user,user.host,user.password,
IF((user.Select_priv+0)||find_in_set('Select',Coalesce(tp.Table_priv,0)),'Y','N') ,
COALESCE( db.db,tp.db, '')) AS userdata,
user.Select_priv AS anydb,
COALESCE( db.db,tp.db, NULL) AS db
FROM
mysql.user LEFT JOIN
mysql.db ON user.user=db.user AND user.host=db.host LEFT JOIN
mysql.tables_priv tp ON user.user=tp.user AND user.host=tp.host
WHERE user.user IS NOT NULL AND user.user <> ''
```
In versions of MySQL 5.7.6 and later, the `Password` column was replaced by
`authentication_string`. Change `user.password` above with
`user.authentication_string`.
**Note:** Due to a bug in MariaDB 10.2.9, if you see a
`SELECT command denied to user ... for table 'users'`
error, grant `SELECT ON mysql.*` to this user.
<a id="passwd"></a>
#### `password`