Fix HashAgg regression from choosing too many initial buckets.
Jeff Davis <jdavis@postgresql.org>
Fix HashAgg regression from choosing too many initial buckets. Diagnosis by Andres. Reported-by: Pavel Stehule Discussion: https://postgr.es/m/CAFj8pRDLVakD5Aagt3yZeEQeTeEWaS3YE5h8XC3Q3qJ6TYkc2Q%40mail.gmail.com Backpatch-through: 13
Files
| Path | Change | +/− |
|---|---|---|
| src/backend/executor/nodeAgg.c | modified | +2 −6 |
Discussion
- significant slowdown of HashAggregate between 9.6 and 10 9 messages · 2020-06-03 → 2020-06-05