Last modified: 2014-05-26 11:08:58 UTC
At least old deleted revisions don't have their length currently on Wikipedia.
Let's focus this bug on MediaWiki core having this functionality ("populateRevisionLength.php doesn't check archive table") and let bug 46183 cover Wikimedia wikis (including Wikipedia).
https://gerrit.wikimedia.org/r/#/c/54111/
I don't think it's an enhancement if you add a database column and provide no means of populating it....
Change 54111 merged by jenkins-bot: Update populateRevisionLength maintenance script to populate archive.ar_len https://gerrit.wikimedia.org/r/54111
gerrit change Ie161a08097a2cd3393d69574263cfe78e4329bb4 fixes this, really, I promise.