| Query | Run |
|---|---|
| select count(*) from enwiki_p.categorylinks | 5 years ago |
| use enwiki_p; select count(*) from pagelinks | 5 years ago |
| use enwiki_p; explain select * from pagelinks | 5 years ago |
| explain select * from enwiki_p.pagelinks union all explain select * from... | 5 years ago |