Wikimedia Bugzilla is closed!

tables.sql contains the following senctence:

-- FIXME:
-- Formerly this index didn't cover cl_type (since that didn't exist), so old
-- callers won't be using an index: fix this?
CREATE INDEX /*i*/cl_sortkey ON /*_*/categorylinks (cl_to,cl_type,cl_sortkey,cl_from);

Please evaluate the timeframe this index was without cl_from and write a update step to the Updater. If the timeframe is short, you can set this to WONTFIX and skip the update step. Thanks.