CREATE INDEX bk_furaffinity_hash ON submission USING spgist (hash_int bktree_ops);
CREATE INDEX bk_e621_hash ON e621 USING spgist (hash bktree_ops);
CREATE INDEX bk_twitter_hash ON tweet_media USING spgist (hash bktree_ops);
CREATE INDEX bk_weasyl_hash ON weasyl USING spgist (hash bktree_ops);