diff options
author | Yorhel <git@yorhel.nl> | 2009-08-12 15:36:37 +0200 |
---|---|---|
committer | Yorhel <git@yorhel.nl> | 2009-08-12 15:36:37 +0200 |
commit | e8ed9663331278c6bd555f7a69c45e84fc4bb34e (patch) | |
tree | 6c4f6b4539398b48dee64bdd2045713cf5d17013 /util/updates | |
parent | 9af811fcde7d9f5c8e9f63390e895fcb8fc07677 (diff) |
Added global user votes ignore list
Diffstat (limited to 'util/updates')
-rw-r--r-- | util/updates/update_2.7.sql | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/util/updates/update_2.7.sql b/util/updates/update_2.7.sql new file mode 100644 index 00000000..1feea9be --- /dev/null +++ b/util/updates/update_2.7.sql @@ -0,0 +1,21 @@ + + +-- add a flag to users whose votes we want to ignore +ALTER TABLE users ADD COLUMN ign_votes boolean NOT NULL DEFAULT FALSE; + +CREATE OR REPLACE FUNCTION update_vnpopularity() RETURNS void AS $$ +BEGIN + CREATE OR REPLACE TEMP VIEW tmp_pop1 (uid, vid, rank) AS + SELECT v.uid, v.vid, sqrt(count(*))::real + FROM votes v +-- JOIN users u ON u.id = v.uid AND NOT u.ign_votes -- slow + JOIN votes v2 ON v.uid = v2.uid AND v2.vote < v.vote + WHERE v.uid NOT IN(SELECT id FROM users WHERE ign_votes) -- faster + GROUP BY v.vid, v.uid; + CREATE OR REPLACE TEMP VIEW tmp_pop2 (vid, win) AS + SELECT vid, sum(rank) FROM tmp_pop1 GROUP BY vid; + UPDATE vn SET c_popularity = COALESCE((SELECT win/(SELECT MAX(win) FROM tmp_pop2) FROM tmp_pop2 WHERE vid = id), 0); + RETURN; +END; +$$ LANGUAGE plpgsql; + |