Active enwiki editors who edited in 2001

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

A list of editors who made at least one edit in 2001 and at least one edit after 1 January 2016. Some of those editors are marked as having registered after 2001, but they all have edits from 2001 in their contributions.

SQL

USE enwiki_p;
SELECT user_id,
  user_name,
  CAST(user_registration AS DATE) AS registration_date,
  user_editcount AS edit_count,
  COUNT(*) AS edits_in_2016
FROM user
INNER JOIN revision AS r1 ON user_id = r1.rev_user
AND r1.rev_timestamp >= '20160000000000'
AND user_id IN (SELECT DISTINCT r2.rev_user
  FROM revision AS r2
  WHERE r2.rev_timestamp < '20020000000000')
GROUP BY user_id
ORDER BY registration_date, user_id;

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