39 lines
1.7 KiB
MySQL
39 lines
1.7 KiB
MySQL
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-- basically we want to recreate the frontpage every 5 minutes and avoid the computation
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-- on every page load
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CREATE MATERIALIZED VIEW IF NOT EXISTS sat_rank_wwm_view AS
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SELECT *,
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((GREATEST("weightedVotes", POWER("weightedVotes", 1.2)) + "weightedComments"/2)
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/
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POWER(GREATEST(3, EXTRACT(EPOCH FROM (now_utc() - created_at))/3600), 1.3)
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+
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(boost/5000::float)
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/
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POWER(EXTRACT(EPOCH FROM (now_utc() - created_at))/3600+2, 2.6)) AS rank
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FROM "Item"
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WHERE "parentId" IS NULL AND NOT bio AND "pinId" IS NULL AND "deletedAt" IS NULL
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ORDER BY rank DESC NULLS LAST, id DESC;
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CREATE UNIQUE INDEX IF NOT EXISTS sat_rank_wwm_view_idx ON sat_rank_wwm_view(id);
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CREATE INDEX IF NOT EXISTS sat_rank_wwm_view_subname_idx ON sat_rank_wwm_view("subName");
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CREATE INDEX IF NOT EXISTS sat_rank_wwm_view_rank_idx ON sat_rank_wwm_view(rank DESC NULLS LAST, id DESC);
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-- we do the same for the tender view
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CREATE MATERIALIZED VIEW IF NOT EXISTS sat_rank_tender_view AS
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SELECT *,
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((GREATEST(ABS("weightedVotes" - "weightedDownVotes"), POWER(ABS("weightedVotes" - "weightedDownVotes"), 1.2))
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+ "weightedComments"/2)
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/
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POWER(GREATEST(3, EXTRACT(EPOCH FROM (now_utc() - created_at))/3600), 1.3)
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+
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(boost/5000::float)
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/
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POWER(EXTRACT(EPOCH FROM (now_utc() - created_at))/3600+2, 2.6)) AS rank
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FROM "Item"
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WHERE "parentId" IS NULL AND NOT bio AND "pinId" IS NULL AND "deletedAt" IS NULL
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AND "weightedVotes" > "weightedDownVotes"
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ORDER BY rank DESC NULLS LAST, id DESC;
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CREATE UNIQUE INDEX IF NOT EXISTS sat_rank_tender_view_idx ON sat_rank_tender_view(id);
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CREATE INDEX IF NOT EXISTS sat_rank_tender_view_subname_idx ON sat_rank_tender_view("subName");
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CREATE INDEX IF NOT EXISTS sat_rank_tender_view_rank_idx ON sat_rank_tender_view(rank DESC NULLS LAST, id DESC);
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