Change Details

The `purgeOldData.php` maintenance script in #checkuser contains code that purges data from the `recentchanges` table if the table stores the IP address used for edits. Instead of having this code in #checkuser, we should instead have this as a maintenance script in core so that it can be used even if #checkuser is not installed. To ensure that the `purgeOldData.php` maintenance script is unchanged, we can call this new script as a child maintenance script. While a job exists to purge this data, this job may not be run frequently enough on small wikis (as this only run 1/10 times that an recent changes row is saved to the database. Running the script every day will ensure that it is definitely run at least once a day (as is done through running `purgeOldData.php` on WMF wikis every day). ======Acceptance criteria * [] Create a new maintenance script that purges expired rows from the `recentchanges` table.

The `purgeOldData.php` maintenance script in #checkuser contains code that purges data from the `recentchanges` table if the table stores the IP address used for edits. Instead of having this code in #checkuser, we should instead have this as a maintenance script in core so that it can be used even if #checkuser is not installed. To ensure that the `purgeOldData.php` maintenance script is unchanged, we can call this new script as a child maintenance script. While a job exists to purge this data, this job may not be run frequently enough on small wikis (as this only run 1/10 times that an recent changes row is saved to the database. Running the script every day will ensure that it is definitely run at least once a day (as is done through running `purgeOldData.php` on WMF wikis every day). ======Acceptance criteria * [x] Create a new maintenance script that purges expired rows from the `recentchanges` table.

The `purgeOldData.php` maintenance script in #checkuser contains code that purges data from the `recentchanges` table if the table stores the IP address used for edits. Instead of having this code in #checkuser, we should instead have this as a maintenance script in core so that it can be used even if #checkuser is not installed. To ensure that the `purgeOldData.php` maintenance script is unchanged, we can call this new script as a child maintenance script. While a job exists to purge this data, this job may not be run frequently enough on small wikis (as this only run 1/10 times that an recent changes row is saved to the database. Running the script every day will ensure that it is definitely run at least once a day (as is done through running `purgeOldData.php` on WMF wikis every day). ======Acceptance criteria * [x] Create a new maintenance script that purges expired rows from the `recentchanges` table.