b672d015e2
* territory specific trust * functional parity with master * revert back to materialized view for ranking * update query for populating subWeightedVotes * fix anon hot comments * fix zap denormalization, change weightedComments to be for zaps, order updates of ancestors to prevent deadlocks * reduce weight of comment zaps for hot score * do zap ancestor updates together * initialize trust in new/unpopular territories * simplify denormalization of zap/downzaps * recompute all scores
110 lines
5.6 KiB
SQL
110 lines
5.6 KiB
SQL
-- AlterTable
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ALTER TABLE "Item" ADD COLUMN "subWeightedDownVotes" FLOAT NOT NULL DEFAULT 0,
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ADD COLUMN "subWeightedVotes" FLOAT NOT NULL DEFAULT 0;
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CREATE INDEX "Item.sumSubVotes_index" ON "Item"(("subWeightedVotes" - "subWeightedDownVotes"));
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-- CreateTable
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CREATE TABLE "UserSubTrust" (
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"subName" CITEXT NOT NULL,
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"userId" INTEGER NOT NULL,
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"zapPostTrust" DOUBLE PRECISION NOT NULL DEFAULT 0,
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"subZapPostTrust" DOUBLE PRECISION NOT NULL DEFAULT 0,
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"zapCommentTrust" DOUBLE PRECISION NOT NULL DEFAULT 0,
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"subZapCommentTrust" DOUBLE PRECISION NOT NULL DEFAULT 0,
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"created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
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"updated_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT "UserSubTrust_pkey" PRIMARY KEY ("userId","subName")
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);
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-- AddForeignKey
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ALTER TABLE "UserSubTrust" ADD CONSTRAINT "UserSubTrust_userId_fkey" FOREIGN KEY ("userId") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;
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-- AddForeignKey
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ALTER TABLE "UserSubTrust" ADD CONSTRAINT "UserSubTrust_subName_fkey" FOREIGN KEY ("subName") REFERENCES "Sub"("name") ON DELETE CASCADE ON UPDATE CASCADE;
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-- UserSubTrust is NOT populated, so this is a no-op ... but useful having it written out for migrating manually on deployment
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UPDATE "Item"
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SET "subWeightedVotes" = subquery."subWeightedVotes",
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"subWeightedDownVotes" = subquery."subWeightedDownVotes",
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"weightedVotes" = subquery."weightedVotes",
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"weightedDownVotes" = subquery."weightedDownVotes"
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FROM (
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WITH sub_votes AS (
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SELECT "ItemAct"."itemId",
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CASE WHEN (SUM("ItemAct"."msats") FILTER (WHERE "ItemAct"."act" IN ('TIP', 'FEE')))::FLOAT > 0
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THEN COALESCE(
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LOG(
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(SUM("ItemAct"."msats") FILTER (WHERE "ItemAct"."act" IN ('TIP', 'FEE')))::FLOAT / 1000
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) * CASE
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WHEN "Item"."parentId" IS NULL
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THEN "UserSubTrust"."subZapPostTrust"
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ELSE "UserSubTrust"."subZapCommentTrust"
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END, 0)
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ELSE 0
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END AS "subWeightedVotes",
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CASE WHEN (SUM("ItemAct"."msats") FILTER (WHERE "ItemAct"."act" IN ('TIP', 'FEE')))::FLOAT > 0
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THEN COALESCE(
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LOG(
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(SUM("ItemAct"."msats") FILTER (WHERE "ItemAct"."act" IN ('TIP', 'FEE')))::FLOAT / 1000
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) * CASE
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WHEN "Item"."parentId" IS NULL
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THEN "UserSubTrust"."zapPostTrust"
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ELSE "UserSubTrust"."zapCommentTrust"
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END, 0)
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ELSE 0
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END AS "weightedVotes",
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CASE WHEN (SUM("ItemAct"."msats") FILTER (WHERE "ItemAct"."act" IN ('DONT_LIKE_THIS')))::FLOAT > 0
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THEN COALESCE(
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LOG(
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(SUM("ItemAct"."msats") FILTER (WHERE "ItemAct"."act" IN ('DONT_LIKE_THIS')))::FLOAT / 1000
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) * CASE
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WHEN "Item"."parentId" IS NULL
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THEN "UserSubTrust"."subZapPostTrust"
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ELSE "UserSubTrust"."subZapCommentTrust"
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END, 0)
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ELSE 0
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END AS "subWeightedDownVotes",
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CASE WHEN (SUM("ItemAct"."msats") FILTER (WHERE "ItemAct"."act" IN ('DONT_LIKE_THIS')))::FLOAT > 0
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THEN COALESCE(
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LOG(
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(SUM("ItemAct"."msats") FILTER (WHERE "ItemAct"."act" IN ('DONT_LIKE_THIS')))::FLOAT / 1000
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) * CASE
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WHEN "Item"."parentId" IS NULL
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THEN "UserSubTrust"."zapPostTrust"
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ELSE "UserSubTrust"."zapCommentTrust"
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END, 0)
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ELSE 0
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END AS "weightedDownVotes"
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FROM "ItemAct"
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JOIN "UserSubTrust" ON "ItemAct"."userId" = "UserSubTrust"."userId"
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JOIN "Item" ON "Item".id = "ItemAct"."itemId"
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AND "UserSubTrust"."subName" = "Item"."subName"
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AND "Item"."userId" <> "ItemAct"."userId"
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WHERE "ItemAct".act IN ('TIP', 'FEE', 'DONT_LIKE_THIS')
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GROUP BY "ItemAct"."itemId", "ItemAct"."userId", "UserSubTrust"."subZapPostTrust",
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"UserSubTrust"."subZapCommentTrust", "UserSubTrust"."zapPostTrust", "UserSubTrust"."zapCommentTrust",
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"Item"."parentId"
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)
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SELECT "itemId", SUM("subWeightedVotes") AS "subWeightedVotes", SUM("subWeightedDownVotes") AS "subWeightedDownVotes",
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SUM("weightedVotes") AS "weightedVotes", SUM("weightedDownVotes") AS "weightedDownVotes"
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FROM sub_votes
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GROUP BY "itemId"
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) AS subquery
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WHERE "Item".id = subquery."itemId";
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CREATE MATERIALIZED VIEW IF NOT EXISTS hot_score_view AS
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SELECT id,
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("Item"."weightedVotes" - "Item"."weightedDownVotes" + ("Item"."weightedComments"*0.25) + ("Item".boost / 5000))
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/ POWER(GREATEST(3, EXTRACT(EPOCH FROM (now() - "Item".created_at))/3600), 1.1) AS hot_score,
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("Item"."subWeightedVotes" - "Item"."subWeightedDownVotes" + ("Item"."weightedComments"*0.25) + ("Item".boost / 5000))
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/ POWER(GREATEST(3, EXTRACT(EPOCH FROM (now() - "Item".created_at))/3600), 1.1) AS sub_hot_score
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FROM "Item"
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WHERE "Item"."weightedVotes" > 0 OR "Item"."weightedDownVotes" > 0 OR "Item"."subWeightedVotes" > 0
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OR "Item"."subWeightedDownVotes" > 0 OR "Item"."weightedComments" > 0 OR "Item".boost > 0;
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CREATE UNIQUE INDEX IF NOT EXISTS hot_score_view_id_idx ON hot_score_view(id);
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CREATE INDEX IF NOT EXISTS hot_score_view_hot_score_idx ON hot_score_view(hot_score DESC NULLS LAST);
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CREATE INDEX IF NOT EXISTS hot_score_view_sub_hot_score_idx ON hot_score_view(sub_hot_score DESC NULLS LAST);
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