From 2723210c07ba72b3b47cf56ed7b7cc9bab10bd31 Mon Sep 17 00:00:00 2001 From: Regina Obe Date: Thu, 1 Dec 2011 17:52:15 +0000 Subject: [PATCH] missed a spot about occasions where point distance is not same as <-> git-svn-id: http://svn.osgeo.org/postgis/trunk@8289 b70326c6-7e19-0410-871a-916f4a2858ee --- doc/reference_operator.xml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/doc/reference_operator.xml b/doc/reference_operator.xml index 7dcd5c230..75b31dc10 100644 --- a/doc/reference_operator.xml +++ b/doc/reference_operator.xml @@ -1068,8 +1068,8 @@ select 'LINESTRING(0 0, 1 1)'::geometry ~= 'LINESTRING(0 1, 1 0)'::geometry as e <-> - Returns the distance between two points. For point / point checks it's exact. For other geometry types - the distance between the bounding box centroids is returned. Useful for doing distance ordering and nearest neighbor limits + Returns the distance between two points. For point / point checks it uses floating point accuracy (as opposed to the double precision accuracy of the underlying point geometry). For other geometry types + the distance between the floating point bounding box centroids is returned. Useful for doing distance ordering and nearest neighbor limits using KNN gist functionality. -- 2.40.0