With T223406/T167246: Refactor "user" & "user_text" fields into "actor" reference table the [[ https://www.mediawiki.org/wiki/Manual:Revision_table#rev_user | revisions.rev_user ]] and revisions.rev_user_text will be replaced by the [[ https://www.mediawiki.org/wiki/Manual:Actor_table | actor table ]].
Some of our tools e.g. WLM-stats make use of the old columns and need to be updated.
WLM-stats just hammers the api it seems so that should be safe. still worth taking a look at our tools to make sure.
hostbot might be affected but I don’t believe we are supporting that any more (@Sebastian_Berlin-WMSE ?)
Fae's reportGLAMdashboard still uses these (but I'm not sure that's the code currently deployed)
And similar to T224866: Review queries on quarry using rev_comment field this also affects some of the queries on quary which we make use of for reporting purposes