# Altering Retention Policy

**URL:** <https://community.influxdata.com/t/altering-retention-policy/22314>\
**Category:** Systems\
**Tags:** influxql\
**Created:** [October 29, 2021, 7:32am UTC](https://community.influxdata.com/t/altering-retention-policy/22314 "2021-10-29T07:32:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![vipinvkmenon](https://sea1.discourse-cdn.com/flex023/user_avatar/community.influxdata.com/vipinvkmenon/32/5985_2.png) [@vipinvkmenon](https://community.influxdata.com/u/vipinvkmenon)\
**Post date:** [October 29, 2021, 7:32am UTC](https://community.influxdata.com/t/altering-retention-policy/22314/1 "2021-10-29T07:32:09Z")

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What happens to the existing measurements of a DB when its Retention policy is changed. Would the old measurements also take the new retention policy or stick to the old one and only the newer measurements take the new policy?

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**Author:** ![Anaisdg](https://sea1.discourse-cdn.com/flex023/user_avatar/community.influxdata.com/anaisdg/32/6401_2.png) [@Anaisdg](https://community.influxdata.com/u/Anaisdg)\
**Post date:** [November 5, 2021, 3:41pm UTC](https://community.influxdata.com/t/altering-retention-policy/22314/2 "2021-11-05T15:41:04Z")

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Hello @vipinvkmenon,  
It’s applied to all the measurements in your db.