How many different types of logs about article namespace are there in a year?

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

For enwiki, by year what are the counts of different types of logs?

SQL

USE enwiki_p;
DESC logging;
# SELECT COUNT(*), log_type, year FROM logging,
# WHERE year = 
# GROUP BY log_type, year
SELECT *, LEFT(log_timestamp,4) year FROM logging
WHERE log_namespace = 0
LIMIT 10

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