Just to clarify up-front: I\'m talking about unioning geometry, not the SQL keyword UNION.
UNION
I\'m trying to move some spatial data from Postgres with Post
Is the UnionAggregate function SQL2012 only?
SELECT geography::UnionAggregate( geometry ) FROM some_table
Hmm guess so. http://technet.microsoft.com/en-us/library/ff929095.aspx