In the version history of an image (or any attached file in MediaWiki), the
page displays "Date/Time" with a link to that version. The timestamp
displayed is the upload timestamp of that version. If you look closely, you
can see that the real filename includes a different timestamp. This turns
out to be the timestamp of when that file was superseded by a subsequent
version.
I have looked in the database tables and can see that in the oldimage
table, each row has an "oi_archive_name" with the timestamp of when that
version was superseded and an "oi_timestamp" of when that version was
actually uploaded.
Is there a reason to name the old versions of the files with the
superseding timestamp instead of the upload timestamp? It seems to me that
the timestamp of when that version was uploaded is more relevant.
Daren
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