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Diffstat (limited to 'doc/TODO')
| -rw-r--r-- | doc/TODO | 10 |
1 files changed, 2 insertions, 8 deletions
@@ -2,7 +2,7 @@ PostgreSQL TODO List ==================== Current maintainer: Bruce Momjian (bruce@momjian.us) -Last updated: Sun Apr 29 03:17:05 EDT 2007 +Last updated: Fri May 4 23:14:29 EDT 2007 The most recent version of this document can be viewed at http://www.postgresql.org/docs/faqs.TODO.html. @@ -1361,14 +1361,8 @@ Optimizer / Executor ==================== * Improve selectivity functions for geometric operators -* Allow ORDER BY ... LIMIT # to select high/low value without sort or +* -Allow ORDER BY ... LIMIT # to select high/low value without sort or index using a sequential scan for highest/lowest values - - Right now, if no index exists, ORDER BY ... LIMIT # requires we sort - all values to return the high/low value. Instead The idea is to do a - sequential scan to find the high/low value, thus avoiding the sort. - MIN/MAX already does this, but not for LIMIT > 1. - * Precompile SQL functions to avoid overhead * Create utility to compute accurate random_page_cost value * Improve ability to display optimizer analysis using OPTIMIZER_DEBUG |