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# general
s
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v
My understanding is that P3M is three calendar months. Current month, last month and the one before
g
it's based on the current date, so if you set this rule then all of your data would be dropped (as it is all older than 3 months from the current date)
c
Thanks for replies! So it always consider the current date which is today regardless what segment's end date is. Right? 🙂 If I would like to keep the last 3 months data in data source considering the segment's end date going back, How would be my data retention policies look like?
g
hmm. I don't think we have an automatic one for that. a clunky idea: you could use
loadByInterval
with a specific 3 month interval, and update it from time to time
(by API, presumably, so you don't need to click the button every day)
c
ah alright, maybe doing it via Airflow DAG or something? scheduling the API requests periodically?
g
that could work too
1
c
Thank you @Gian Merlino