Last modified: 2010-05-15 15:48:26 UTC
When upgrading, if you run maintenance/update.php, the new schema changes for the user table are applied to the main wiki database and not the $wgSharedDB table.
Run the script with the switch `--doshared` to force shared table updates to take place.
Ok, this is a bit unexpected then. If wgSharedDB is set, why would a user have to pass this argument in? Shouldn't it automatically update the shared table?
Seems sensible to at least raise a warning.