As part of changes to allow yubikey support, a schema change is needed. At https://gerrit.wikimedia.org/r/#/c/mediawiki/extensions/OATHAuth/+/496451/ the following is proposed https://gerrit.wikimedia.org/r/#/c/mediawiki/extensions/OATHAuth/+/496451/47/sql/mysql/patch-add_generic_fields.sql :
```
ALTER TABLE /*_*/oathauth_users
ADD module VARCHAR( 255 ) NOT NULL,
ADD data BLOB NULL;
```
**Backwards compatible:** Yes, as only new columns to be added (There's a part to remove some no longer used fields as well, but we'd want to do that later so we could revert back in case bad things happen)
**Replicate to cloud:** No, table should already be blacklisted anyway
**Testing:** Unable to be tested on "just" testwiki, tested locally on dev machines
**When:** TBD (good to go now?)
Please note: The oathauth_users table is a global table, so its in the centralauth database, and not all the individual wiki databases for SUL wikis.
**Where:**
[] centralauth.oathauth_users
[] labswiki.oathauth_users
[] labtestwiki.oathauth_users
[] foundationwiki.oathauth_users
[] advisorswiki.oathauth_users
[] arbcom_cswiki.oathauth_users
[] arbcom_dewiki.oathauth_users
[] arbcom_enwiki.oathauth_users
[] arbcom_fiwiki.oathauth_users
[] arbcom_nlwiki.oathauth_users
[] auditcomwiki.oathauth_users
[] boardgovcomwiki.oathauth_users
[] boardwiki.oathauth_users
[] chairwiki.oathauth_users
[] chapcomwiki.oathauth_users
[] checkuserwiki.oathauth_users
[] collabwiki.oathauth_users
[] ecwikimedia.oathauth_users
[] electcomwiki.oathauth_users
[] execwiki.oathauth_users
[] fdcwiki.oathauth_users
[] grantswiki.oathauth_users
[] id_internalwikimedia.oathauth_users
[] iegcomwiki.oathauth_users
[] ilwikimedia.oathauth_users
[] internalwiki.oathauth_users
[] legalteamwiki.oathauth_users
[] movementroleswiki.oathauth_users
[] noboard_chapterswikimedia.oathauth_users
[] officewiki.oathauth_users
[] ombudsmenwiki.oathauth_users
[] otrs_wikiwiki.oathauth_users
[] projectcomwiki.oathauth_users
[] searchcomwiki.oathauth_users
[] spcomwiki.oathauth_users
[] stewardwiki.oathauth_users
[] techconductwiki.oathauth_users
[] transitionteamwiki.oathauth_users
[] wg_enwiki.oathauth_users
[] wikimaniateamwiki.oathauth_users
[] zerowiki.oathauth_users
If a #DBA could make this change, that would be awesome :)