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ldenson11/fraud_detection.sql Secret

Created January 29, 2020 22:06
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fraud_detection.sql
-- detect multiple auths in a short window
-- send to alerting framework
SELECT card,
MAX(amount) as theamount,
TUMBLE_END(eventTimestamp, interval '5' minute) as ts
FROM auths
WHERE lat IS NOT NULL
AND lon IS NOT NULL
GROUP BY card, TUMBLE(eventTimestamp, interval '5' minute)
HAVING COUNT(*) > 4 -- >4==fraud
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