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22 lines
738 B
SQL
22 lines
738 B
SQL
-- AlterTable
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ALTER TABLE "website_event" ADD COLUMN "visit_id" UUID NULL;
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UPDATE "website_event" we
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SET visit_id = a.uuid
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FROM (SELECT DISTINCT
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s.session_id,
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s.visit_time,
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gen_random_uuid() uuid
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FROM (SELECT DISTINCT session_id,
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date_trunc('hour', created_at) visit_time
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FROM "website_event") s) a
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WHERE we.session_id = a.session_id
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and date_trunc('hour', we.created_at) = a.visit_time;
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ALTER TABLE "website_event" ALTER COLUMN "visit_id" SET NOT NULL;
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-- CreateIndex
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CREATE INDEX "website_event_visit_id_idx" ON "website_event"("visit_id");
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-- CreateIndex
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CREATE INDEX "website_event_website_id_visit_id_created_at_idx" ON "website_event"("website_id", "visit_id", "created_at"); |