Query Run
use enwiki_p; select comment_data from comment where LENGTH(comment_data)>1 limit 10; 4 years ago
use enwiki_p; select comment_data from comment where comment_data!=NULL limit 10; 4 years ago
use enwiki_p; select comment_data from comment where comment_data!='' limit 10; 4 years ago
use enwiki_p; select comment_data from comment limit 10; 4 years ago
use enwiki_p; select c.comment_data, r.rev_id from revision r JOIN comment c... 4 years ago
use enwiki_p; describe revision; 4 years ago
use enwiki; describe revision; 4 years ago
describe recentchanges; 4 years ago