Teahouse answers who were probably renamed

People who answered questions on the Teahouse whose user_registration date (in the `user` table) is after the date they answered their first Teahouse question. Many of these people probably were renamed. See also: https://quarry.wmflabs.org/query/16240

SQL

SELECT * FROM p50380g50728__hostbot_p.td_probable_renames;

###CREATED BY####
/*create table td_probable_renames select reg.old_uid, reg.old_uname, profile.first_post, reg.old_reg 
FROM (select author u1, timestamp first_post 
FROM td_host_responses_parsed GROUP BY u1 ORDER BY first_post ASC) AS profile 
JOIN (SELECT user_name old_uname, user_id old_uid, STR_TO_DATE(user_registration,'%Y%m%d%H%i%s') AS old_reg 
FROM enwiki_p.user) AS reg 
ON profile.u1 = reg.old_uname 
WHERE profile.first_post < reg.old_reg ORDER BY profile.first_post ASC; */

SQL

Checking query status...