On Feb 26, 2020, at 1:19 PM, Michael Lewis <mlewis@entrata.com> wrote:
UPDATE multicards SET defacements = COALESCE( count, 0 ) FROM ( SELECT multicard_uid, COUNT(*) AS count FROM tickets GROUP BY multicard_uid ) AS sub WHERE uid = multicard_uid OR multicard_uid is null;
I expect this should work. Not sure of performance of course.
