From 849288bf81634d976f1dc1366af18a782ddcbdf9 Mon Sep 17 00:00:00 2001 From: Regina Obe Date: Thu, 15 Dec 2011 02:15:15 +0000 Subject: [PATCH] get rid of extra tag git-svn-id: http://svn.osgeo.org/postgis/trunk@8427 b70326c6-7e19-0410-871a-916f4a2858ee --- doc/using_raster_dataman.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/using_raster_dataman.xml b/doc/using_raster_dataman.xml index c84417a6f..dd8e3322b 100644 --- a/doc/using_raster_dataman.xml +++ b/doc/using_raster_dataman.xml @@ -293,7 +293,7 @@ psql -d gisdb -f elev.sql Raster Overviews raster_overviews catalogs information about raster table columns used for overviews and additional information about them that is useful to know when utilizing overviews. Overview tables are cataloged in both raster_columns and raster_overviews because they are rasters in their own right but also serve an additional special purpose of being a lower resolution caricature of a higher resolution table. These are generated along-side the main raster table when you use the -l switch in raster loading. Overview tables contain the same constraints as other raster tables as well as additional informational only constraints specific to overviews. - The informaiton in raster_overviews does not duplicate the information in raster_columns. IF you need the information about an overview table present in raster_columns you can join the raster_overviews and raster_columns vuews together to get the full set of information you need. + The informaiton in raster_overviews does not duplicate the information in raster_columns. IF you need the information about an overview table present in raster_columns you can join the raster_overviews and raster_columns vuews together to get the full set of information you need. Two main reasons for overviews are: Low resolution representation of the core tables commonly used for fast mapping zoom-out. -- 2.40.0