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< * Have EXPLAIN ANALYZE highlight poor optimizer estimates
> * Have EXPLAIN ANALYZE issue NOTICE messages when the estimated and
>   actual row counts differ by a specified percentage
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Bruce Momjian
2006-12-12 22:31:19 +00:00
parent f18c57fdf1
commit 8283cd7663
2 changed files with 6 additions and 4 deletions
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@ -2,7 +2,7 @@
PostgreSQL TODO List
====================
Current maintainer: Bruce Momjian (bruce@momjian.us)
Last updated: Tue Dec 12 15:34:25 EST 2006
Last updated: Tue Dec 12 17:31:12 EST 2006
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
@ -1187,7 +1187,8 @@ Optimizer / Executor
* Precompile SQL functions to avoid overhead
* Create utility to compute accurate random_page_cost value
* Improve ability to display optimizer analysis using OPTIMIZER_DEBUG
* Have EXPLAIN ANALYZE highlight poor optimizer estimates
* Have EXPLAIN ANALYZE issue NOTICE messages when the estimated and
actual row counts differ by a specified percentage
* Consider using hash buckets to do DISTINCT, rather than sorting
This would be beneficial when there are few distinct values. This is