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| author | David Rowley <drowley@postgresql.org> | 2023-06-22 12:50:55 +1200 |
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| committer | David Rowley <drowley@postgresql.org> | 2023-06-22 12:50:55 +1200 |
| commit | f3c2fae0636ed7e9e1a6a4365192ae8ef7af425f (patch) | |
| tree | 0ff571318af076656897a6caf48bc1a22cfa59d4 /src/backend/executor/nodeSubplan.c | |
| parent | 355917c07c633ab00e41c91eef262b3e438a63e4 (diff) | |
| download | postgresql-f3c2fae0636ed7e9e1a6a4365192ae8ef7af425f.tar.gz postgresql-f3c2fae0636ed7e9e1a6a4365192ae8ef7af425f.zip | |
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
Diffstat (limited to 'src/backend/executor/nodeSubplan.c')
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