Draft table schema
`wiki_db` string COMMENT 'wiki db name', `date` date COMMENT 'The paritition date for which the metric is computed over.', `rc_date` date COMMENT 'The date for which the recentchanges status is aggegated for, usually 15 days prior to the paritition date.', `is_ns0` boolean COMMENT 'Indicates whether the log is on namespace zero or not.', `is_page_creation` boolean COMMENT 'Indicates whether the revision resulted in page creation.', `patrol_status` string COMMENT 'Patrol status of the change, possible values: autopatrolled, patrolled, unpatrolled.', `n_revisions` int COMMENT 'Number of revisions for the given dimensions.'