lemmy/migrations/2023-12-22-040137_make-mixe.../up.sql

19 lines
864 B
PL/PgSQL

CREATE FUNCTION reverse_timestamp_sort (t timestamp with time zone)
RETURNS bigint
AS $$
BEGIN
RETURN (-1000000 * EXTRACT(EPOCH FROM t))::bigint;
END;
$$
LANGUAGE plpgsql
IMMUTABLE PARALLEL SAFE;
CREATE INDEX idx_post_aggregates_community_published_asc ON public.post_aggregates USING btree (community_id, featured_local DESC, reverse_timestamp_sort (published) DESC);
CREATE INDEX idx_post_aggregates_featured_community_published_asc ON public.post_aggregates USING btree (community_id, featured_community DESC, reverse_timestamp_sort (published) DESC);
CREATE INDEX idx_post_aggregates_featured_local_published_asc ON public.post_aggregates USING btree (featured_local DESC, reverse_timestamp_sort (published) DESC);
CREATE INDEX idx_post_aggregates_published_asc ON public.post_aggregates USING btree (reverse_timestamp_sort (published) DESC);