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Update for Oleg:

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>   using a sequential scan for highest/lowest values (Oleg)
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Bruce Momjian 2002-04-18 04:07:04 +00:00
parent f1b7e8416a
commit bac714b72a
1 changed files with 2 additions and 2 deletions
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@ -1,6 +1,6 @@
TODO list for PostgreSQL TODO list for PostgreSQL
======================== ========================
Last updated: Wed Apr 17 23:58:08 EDT 2002 Last updated: Thu Apr 18 00:04:58 EDT 2002
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@ -435,7 +435,7 @@ OPTIMIZER / EXECUTOR
* Make IN/NOT IN have similar performance to EXISTS/NOT EXISTS [exists] * Make IN/NOT IN have similar performance to EXISTS/NOT EXISTS [exists]
* Missing optimizer selectivities for date, r-tree, etc. [optimizer] * Missing optimizer selectivities for date, r-tree, etc. [optimizer]
* Allow ORDER BY ... LIMIT to select top values without sort or index * Allow ORDER BY ... LIMIT to select top values without sort or index
using a sequential scan for highest/lowest values using a sequential scan for highest/lowest values (Oleg)
* Inline simple SQL functions to avoid overhead (Tom) * Inline simple SQL functions to avoid overhead (Tom)
* Precompile SQL functions to avoid overhead (Neil Conway) * Precompile SQL functions to avoid overhead (Neil Conway)
* Add utility to compute accurate random_page_cost value * Add utility to compute accurate random_page_cost value