Schema Change:
All wikis
tables: logging
changes: Add index log_type_action
commit status: pending review - https://gerrit.wikimedia.org/r/#/c/mediawiki/core/+/445177/
```lang=sql
CREATE INDEX /*i*/log_type_action ON /*_*/logging(log_type, log_action, log_timestamp);
```
Some wikis
tables: logging
changes: Drop index type_action
commit status: pending review - https://gerrit.wikimedia.org/r/#/c/mediawiki/core/+/445177/
```lang=sql
DROP INDEX /*i*/type_acton ON /*_*/logging;
```
Combined SQL for some wikis:
```lang=sql
ALTER TABLE logging
DROP INDEX IF EXISTS type_acton,
ADD INDEX IF NOT EXISTS log_type_action (log_type, log_action, log_timestamp);
```
Schema change progress
* s1
[] eqiad progress T51199#5014494
[] codfw
* s2
[] eqiad
[] codfw
* s3
[] eqiad
[] codfw
* s4
[] eqiad progress T51199#5014496
[] codfw
* s5
[x] eqiad progress T51199#5014498
[x] codfw
* s6
[] eqiad
[] codfw
* s7
[] eqiad
[] codfw
* s8
[] eqiad
[] codfw
* wikitech
[x] labswiki
[x] labtestwiki