To {T361139}, a column to store an ID that is a key to the `cu_useragent` table is needed in each CheckUser result table (added in T359312). The CheckUser result tables are `cu_changes`, `cu_log_event`, and `cu_private_event`. These columns were added to these tables in the extension in T361140.
# **ALTERs to run:**
## https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/CheckUser/+/refs/heads/master/schema/mysql/patch-cu_changes-add-cuc_agent_id.sql
## https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/CheckUser/+/refs/heads/master/schema/mysql/patch-cu_log_event-add-cule_agent_id.sql
## https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/CheckUser/+/refs/heads/master/schema/mysql/patch-cu_private_event-add-cupe_agent_id.sql
# **Where to run those changes:** all
# **When to run those changes:** At 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:** checkuser is not on beta cluster but has been deployed on a mwvagrant instance on https://checkuser-beta-wiki.wmcloud.org
# **If the data should be made available on the labs replicas and/or dumps:** Everything is private
Progress
[] s1
** [] eqiad
** [] codfw
[x] s2
** [x] eqiad
** [x] codfw
[x] s3
** [x] eqiad
** [x] codfw
[] s4
** [] eqiad
** [] codfw
[] s5
** [] eqiad
** [] codfw (running)
[x] s6
** [x] eqiad
** [x] codfw
[] s7
** [] eqiad
** [] codfw
[] s8
** [] eqiad
** [] codfw
[x] labtestwiki