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Updated readme [skip ci]

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Andrew Kane
2023-11-03 17:02:30 -07:00
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@@ -438,6 +438,8 @@ SELECT ...
COMMIT; COMMIT;
``` ```
Also, if the table is small, a table scan may be faster.
#### Why isn’t a query using a parallel table scan? #### Why isn’t a query using a parallel table scan?
The planner doesn’t consider [out-of-line storage](https://www.postgresql.org/docs/current/storage-toast.html) in cost estimates, which can make a serial scan look cheaper. You can reduce the cost of a parallel scan for a query with: The planner doesn’t consider [out-of-line storage](https://www.postgresql.org/docs/current/storage-toast.html) in cost estimates, which can make a serial scan look cheaper. You can reduce the cost of a parallel scan for a query with: