Re: Select representative size of sample

David Rowley <[email protected]> Wed, 30 Apr 2025 00:59:11 +1200
Newsgroups gmane.comp.gis.postgis
Message-ID <CAApHDvoJ5PUSzLzCeb+nVyqi-SjsGPVP4axzwWKp4bHxVshJVw@mail.gmail.com>
On Wed, 30 Apr 2025 at 00:55, Shaozhong SHI <[email protected]> wrote:
> How to select a representative size of sample from a table for test?

See TABLESAMPLE in [1].

David

[1] https://www.postgresql.org/docs/current/sql-select.html