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I have a database that has both sequenced correlated to table unique ids and "standalone" but having values.

I need to know which ones are really used but I'm not the owner of every procedure running on the database.

Is there any way to know when a Postgres sequence was last used?

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No, the time when a sequence is used is not recorded by PostgreSQL.

I would figure out the last_value of each sequence, wait for a week and do it again. Then you can easily see which sequences have advanced and how much.

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  • Thank you, I think I'll do so. Actually before asking I've looked all the db catalog without finding a timestamp, so just asking to see if I lost something but no way – Andrea Giovacchini Apr 3 at 9:05

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