Doc: mention that extended stats aren't used for joins
David Rowley <drowley@postgresql.org>
Doc: mention that extended stats aren't used for joins Statistics defined by the CREATE STATISTICS command are only used to assist with the selectivity estimations of base relations, never for joins. Here we mention this fact in the notes section of the CREATE STATISTICS command. Discussion: https://postgr.es/m/CAApHDvrMuVgDOrmg_EtFDZ=AOovq6EsJNnHH1ddyZ8EqL4yzMw@mail.gmail.com Backpatch-through: 11
Files
| Path | Change | +/− |
|---|---|---|
| doc/src/sgml/ref/create_statistics.sgml | modified | +6 −0 |
Documentation touched
Discussion
- extended statistics n-distinct on multiple columns not used when join two tables 6 messages · 2023-06-13 → 2023-06-22