Apply T243985 to wmf wikis
# **ALTERs to run:** https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Translate/+/817892/5/sql/mysql/patch-revtag-unique-to-pk.sql
# **Where to run those changes:** s3 (wikis T314140#8115150), s4, s7 (frwiktionary and metawiki), s8
# **When to run those changes:** any time
# **If the schema change is backwards compatible:** Yes
# **If the schema change has been tested already on some of the test/beta wikis:** beta already running with the new schema
# **if the data should be made available on the labs replicas and/or dumps:** no change of the existing rules
Due to a bug in the schema change generator (T314138) the DROP + ALTER should be rewritten to be atomic
```
alter table revtag drop key rt_type_page_revision, ADD PRIMARY KEY (rt_type, rt_page, rt_revision);
```
Progress
[] s3 (T314140#8115150)
[] s4
[] s7 (frwiktionary and metawiki)
[] s8