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update visitId hash and expiration logic

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Francis Cao 2024-03-25 17:47:53 -07:00
parent d3ca856521
commit 0aaf2c0b3b
5 changed files with 44 additions and 10 deletions
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14
db/postgresql/migrations/05_add_visit_id/migration.sql
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@ -1,9 +1,17 @@
-- AlterTable
ALTER TABLE "website_event" ADD COLUMN "visit_id" UUID NULL;
UPDATE "website_event"
SET visit_id = uuid_in(overlay(overlay(md5(CONCAT(session_id::text, to_char(date_trunc('hour', created_at), 'YYYY-MM-DD HH24:00:00'))) placing '4' from 13) placing '8' from 17)::cstring)
WHERE visit_id IS NULL;
UPDATE "website_event" we
SET visit_id = a.uuid
FROM (SELECT DISTINCT
s.session_id,
s.visit_time,
gen_random_uuid() uuid
FROM (SELECT DISTINCT session_id,
date_trunc('hour', created_at) visit_time
FROM "website_event") s) a
WHERE we.session_id = a.session_id
and date_trunc('hour', we.created_at) = a.visit_time;
ALTER TABLE "website_event" ALTER COLUMN "visit_id" SET NOT NULL;