Changes between Version 29 and Version 30 of DevWikiEmptyGeometry

Timestamp:

Nov 20, 2009, 4:33:31 PM (14 years ago)

Author:

pramsey

Comment:

—

DevWikiEmptyGeometry

@@ -35 +35 @@
  * ST_Area(empty) == 0
  * ST_Length(empty) == 0
+
+''Collections:''
+
+When working against collections that might contain both empty and non-empty members, if there is any non-empty member, ignore all the empty members and treat the collection as if the empty portions are not there. If the collection is entirely made of empty components, behave as above.
 
 ''Note:''