Search Functionality broken by the wp 4.2 update
The problem was due to the fact that the query was restructured in this latest update. As pointed out by d79 in this question, the query changed from: SELECT DISTINCT SQL_CALC_FOUND_ROWS wp_users.* FROM wp_users INNER JOIN wp_usermeta ON ( wp_users.ID = wp_usermeta.user_id ) INNER JOIN wp_usermeta AS mt1 ON ( wp_users.ID = mt1.user_id ) WHERE … Read more