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make hot_score_view editable through parameters of another view

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k00b 2025-03-21 19:40:03 -05:00
parent 5164258df8
commit 2d619438b1
1 changed files with 35 additions and 0 deletions
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prisma/migrations/20250321225044_dynamic_hot_score_view/migration.sql Normal file
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CREATE OR REPLACE VIEW hot_score_constants AS
SELECT 10000.0 AS boost_per_vote,
1.0 AS vote_power,
1.1 AS vote_decay,
3 AS age_wait_hours,
0.25 AS comment_vote_scaler;
CREATE MATERIALIZED VIEW IF NOT EXISTS hot_score_view_temp AS
SELECT id,
CASE WHEN "Item"."weightedVotes" - "Item"."weightedDownVotes" > 0
THEN (POWER("Item"."weightedVotes" - "Item"."weightedDownVotes", hot_score_constants.vote_power)
+ "Item"."weightedComments"*hot_score_constants.comment_vote_scaler
+ "Item".boost / hot_score_constants.boost_per_vote)
/ POWER(GREATEST(hot_score_constants.age_wait_hours, EXTRACT(EPOCH FROM (now() - "Item".created_at))/3600), hot_score_constants.vote_decay)
ELSE "Item"."weightedVotes" - "Item"."weightedDownVotes" END AS hot_score,
CASE WHEN "Item"."subWeightedVotes" - "Item"."subWeightedDownVotes" > 0
THEN (POWER("Item"."subWeightedVotes" - "Item"."subWeightedDownVotes", hot_score_constants.vote_power)
+ "Item"."weightedComments"*hot_score_constants.comment_vote_scaler
+ "Item".boost / hot_score_constants.boost_per_vote)
/ POWER(GREATEST(hot_score_constants.age_wait_hours, EXTRACT(EPOCH FROM (now() - "Item".created_at))/3600), hot_score_constants.vote_decay)
ELSE "Item"."subWeightedVotes" - "Item"."subWeightedDownVotes" END AS sub_hot_score
FROM "Item", hot_score_constants
WHERE "Item"."weightedVotes" > 0 OR "Item"."weightedDownVotes" > 0 OR "Item"."subWeightedVotes" > 0
OR "Item"."subWeightedDownVotes" > 0 OR "Item"."weightedComments" > 0 OR "Item".boost > 0;
DROP MATERIALIZED VIEW IF EXISTS hot_score_view;
ALTER MATERIALIZED VIEW hot_score_view_temp RENAME TO hot_score_view;
CREATE UNIQUE INDEX IF NOT EXISTS hot_score_view_id_idx ON hot_score_view(id);
CREATE INDEX IF NOT EXISTS hot_score_view_hot_score_idx ON hot_score_view(hot_score DESC NULLS LAST);
CREATE INDEX IF NOT EXISTS hot_score_view_sub_hot_score_idx ON hot_score_view(sub_hot_score DESC NULLS LAST);
CREATE INDEX IF NOT EXISTS hot_score_view_hot_score_no_nulls_idx ON hot_score_view(hot_score DESC);
CREATE INDEX IF NOT EXISTS hot_score_view_sub_hot_score_no_nulls_idx ON hot_score_view(sub_hot_score DESC);