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fix(users/Profpatsch/whatcd-resolver): store seeding_weight

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Generated columns!!

This reduces the query time for distinct on somewhat!

Change-Id: Ic004d327b719a9f44a224ec87709992ce3d8f160
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11676
Autosubmit: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
This commit is contained in:
Profpatsch 2024-05-16 20:47:29 +02:00 committed by clbot
parent b54ad3e580
commit 87d806c20f
1 changed files with 4 additions and 3 deletions
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7
users/Profpatsch/whatcd-resolver/src/WhatcdResolver.hs
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@ -652,6 +652,9 @@ migrate = inSpan "Database Migration" $ do
END;
$$ LANGUAGE plpgsql IMMUTABLE;
ALTER TABLE redacted.torrents_json
ADD COLUMN IF NOT EXISTS seeding_weight int GENERATED ALWAYS AS (calc_seeding_weight(full_json_result)) STORED;
-- inflect out values of the full json
CREATE OR REPLACE VIEW redacted.torrents AS
SELECT
@ -659,14 +662,12 @@ migrate = inSpan "Database Migration" $ do
t.torrent_id,
t.torrent_group,
-- the seeding weight is used to find the best torrent in a group.
calc_seeding_weight(t.full_json_result) AS seeding_weight,
t.seeding_weight,
t.full_json_result,
t.torrent_file,
t.transmission_torrent_hash
FROM redacted.torrents_json t;
-- make sure we store the results
CREATE INDEX IF NOT EXISTS redacted_torrents_json_seeding_weight ON redacted.torrents_json (calc_seeding_weight(full_json_result));
CREATE INDEX IF NOT EXISTS torrents_json_seeding ON redacted.torrents_json(((full_json_result->'seeding')::integer));
CREATE INDEX IF NOT EXISTS torrents_json_snatches ON redacted.torrents_json(((full_json_result->'snatches')::integer));