**Author:** `metatron`
**Description:**
Queries on logging-table perform different on different wikis.
Atm there are different key definitions on eg. enwiki and dewiki
- enwiki has a key `log_user_text_time`(ok to have), dewiki doesn't
- dewiki has a key `log_user_type_time`(important to have), enwiki doesn't
- same for `log_title_time` / `log_page_id_time`
```lang=sql
enwiki | CREATE TABLE `logging`
...
PRIMARY KEY (`log_id`),
KEY `type_time` (`log_type`,`log_timestamp`),
KEY `user_time` (`log_user`,`log_timestamp`),
KEY `page_time` (`log_namespace`,`log_title`,`log_timestamp`),
KEY `times` (`log_timestamp`),
KEY `log_page_id_time` (`log_page`,`log_timestamp`),
KEY `log_user_text_time` (`log_user_text`(16),`log_timestamp`),
KEY `log_title_time` (`log_title`(16),`log_timestamp`)
) ENGINE=TokuDB AUTO_INCREMENT=58015836 DEFAULT CHARSET=binary `compression`='tokudb_zlib'
```
```lang=sql
dewiki | CREATE TABLE `logging`
...
PRIMARY KEY (`log_id`),
KEY `type_time` (`log_type`,`log_timestamp`),
KEY `user_time` (`log_user`,`log_timestamp`),
KEY `page_time` (`log_namespace`,`log_title`,`log_timestamp`),
KEY `times` (`log_timestamp`),
KEY `log_user_type_time` (`log_user`,`log_type`,`log_timestamp`),
KEY `log_page_id_time` (`log_page`,`log_timestamp`)
) ENGINE=TokuDB AUTO_INCREMENT=62684641 DEFAULT CHARSET=binary `compression`='tokudb_zlib'
```
Schema change progress
* s1
[x] eqiad progress T71127#5014493
[x] codfw
* s2
[x] eqiad progress T71127#5056993
[x] codfw
* s3
[] eqiad
[] codfw
* s4
[x] eqiad progress T71127#5014495
[x] codfw
* s5
[x] eqiad progress T71127#5014497
[x] codfw
* s6
[x] eqiad progress T71127#5017757
[x] codfw
* s7
[x] eqiad progress T71127#5039574
[x] codfw
* s8
[x] eqiad progress T71127#5031391
[x] codfw
* wikitech
[x] labswiki
[x] labtestwiki