lemmy/migrations/2023-07-06-151124_hot-rank-future/down.sql
phiresky aa70325c11
Make hot rank not crash on future (#3517)
* make hot rank zero for future

* parallel safe
2023-07-07 11:27:47 +02:00

12 lines
392 B
PL/PgSQL

CREATE OR REPLACE FUNCTION hot_rank(score numeric, published timestamp without time zone)
RETURNS integer
AS $$
BEGIN
-- hours_diff:=EXTRACT(EPOCH FROM (timezone('utc',now()) - published))/3600
RETURN floor(10000 * log(greatest(1, score + 3)) / power(((EXTRACT(EPOCH FROM(timezone('utc', now()) - published)) / 3600) + 2), 1.8))::integer;
END;
$$
LANGUAGE plpgsql
IMMUTABLE;