diff options
| author | Simon Riggs <simon@2ndQuadrant.com> | 2014-11-18 10:24:55 +0000 |
|---|---|---|
| committer | Simon Riggs <simon@2ndQuadrant.com> | 2014-11-18 10:24:55 +0000 |
| commit | 606c0123d627b37d5ac3f7c2c97cd715dde7842f (patch) | |
| tree | d7afc6412732b75ada6c45581d59a4ee7abf487d /src/backend/access/gist/gist.c | |
| parent | dedae6c211415290cdf5faca4ef874f803af204c (diff) | |
| download | postgresql-606c0123d627b37d5ac3f7c2c97cd715dde7842f.tar.gz | |
Reduce btree scan overhead for < and > strategies
For <, <=, > and >= strategies, mark the first scan key
as already matched if scanning in an appropriate direction.
If index tuple contains no nulls we can skip the first
re-check for each tuple.
Author: Rajeev Rastogi
Reviewer: Haribabu Kommi
Rework of the code and comments by Simon Riggs
Diffstat (limited to 'src/backend/access/gist/gist.c')
0 files changed, 0 insertions, 0 deletions