]> granicus.if.org Git - postgis/commitdiff
After having to answer this yet again I am finally reduced to adding the age old...
authorRegina Obe <lr@pcorp.us>
Fri, 28 Jan 2011 12:11:15 +0000 (12:11 +0000)
committerRegina Obe <lr@pcorp.us>
Fri, 28 Jan 2011 12:11:15 +0000 (12:11 +0000)
git-svn-id: http://svn.osgeo.org/postgis/trunk@6748 b70326c6-7e19-0410-871a-916f4a2858ee

doc/faq.xml

index 9ed7a87b76f179750fe3f6828ad2a2176ee83d08..8f71817d6b64019991a9ba08a0a8a3988dff50a8 100644 (file)
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<chapter>
-  <title>Frequently Asked Questions</title>
+<chapter id="PostGIS_FAQ">
+  <title>PostGIS Frequently Asked Questions</title>
 
   <qandaset>
     <qandaentry>
       </answer>
     </qandaentry>
     
+    <qandaentry>
+      <question>
+        <para>I tried to use PgAdmin to view my geometry column and it is blank, what gives?</para>
+      </question>
+
+      <answer>
+        <para>PgAdmin doesn't show anything for large geometries.  The best ways to verify you do have day in your geometry columns are?</para>
+        
+        
+        <programlisting>-- this should return no records if all your geom fields are filled in        
+SELECT somefield FROM mytable WHERE geom IS NULL;</programlisting>
+      
+        <programlisting>-- To tell just how large your geometry is do a query of the form
+--which will tell you the most number of points you have in any of your geometry columns
+SELECT MAX(ST_NPoints(geom)) FROM sometable;</programlisting>
+      </answer>
+    </qandaentry>
+    
     <qandaentry>
       <question>
         <para>What kind of geometric objects can I store?</para>