tsm_system_rows
A contrib module providing the table sampling method SYSTEM_ROWS
tsm_system_rows is a contrib module providing the table sampling method SYSTEM_ROWS.
tsm_system_rows was added in PostgreSQL 9.5.
Change history
- PostgreSQL 13
- marked as a trusted extension (commit eb67623c)
- PostgreSQL 9.5
- added (commit 4d40494b)
References
- PostgreSQL documentation: tsm_system_rows
Useful links
- Getting random rows faster. Very much faster. - May 2021 blog article by Magnus Hagander demonstrating a practical use of tsm_system_rows
