nlwiki File uploads and deletions by year

This query is marked as a draft This query has been published by Bdijkstra.

Combines *new* uploads from `image` and `filearchive` and shows next to deletions in `filearchive`.
Table `logging` doesn't have any info from before 2006.
Deletions before 2006 were not recorded anywhere it seems.

SQL

/*SELECT
	LEFT(fa_deleted_timestamp, 4) AS year,
    NULL AS uploads,
    COUNT(*) AS deletions
FROM filearchive
GROUP BY year DESC;*/
SELECT 
	LEFT(log_timestamp, 4) AS year,
    SUM(log_type='upload' AND log_action='upload') AS uploads,
    NULL AS deletions
FROM logging
WHERE log_namespace=6
GROUP BY year DESC

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