-- The season counterpart of episode_releases (0006). A targeted season search
-- returns packs the operator has not committed to, which is the wrong grain
-- for a table that links a release to one episode (DESIGN.md §9.3, issue 125).
CREATE TABLE season_releases (
    season_id INTEGER NOT NULL REFERENCES seasons (id) ON DELETE CASCADE,
    release_id INTEGER NOT NULL REFERENCES releases (id) ON DELETE CASCADE,
    PRIMARY KEY (season_id, release_id)
) STRICT;

CREATE INDEX season_releases_release ON season_releases (release_id);