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Asked: 2026-06-04T10:16:18+00:00

I’d like to create a read-only snapshot of a database at the end of

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I’d like to create a read-only snapshot of a database at the end of each day, and keep them around for a couple of months.

I’d then like to be able to run queries against a specific (named) snapshot.

Is this possible to achieve elegantly and with minimal resource usage (the database only changes very slowly, but has a few GBs of data – so almost all data is common to all snapshots).

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  1. Editorial Team

    The usual way to create a snapshot in PostgreSQL is to use pg_dump/pg_restore.

    A much quicker method is to simply use CREATE DATABASE to clone your database. 

    CREATE DATABASE my_copy_db TEMPLATE my_production_db;

    which will be much faster than a dump/restore. The only drawback to this solution is that the source database must not have any open connections.

    The copy will not be read-only by default, but you could simply revoke the respective privileges from the users to ensure that

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