[postgis-devel] [PostGIS] #265: Geometry to Geography cast enhancement auto transform
PostGIS
trac at osgeo.org
Mon Oct 12 18:59:47 PDT 2009
#265: Geometry to Geography cast enhancement auto transform
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Reporter: robe | Owner: pramsey
Type: enhancement | Status: new
Priority: low | Milestone: postgis 1.5.0
Component: postgis | Version: trunk
Resolution: | Keywords:
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Comment (by pramsey):
I considered this, but there's a future issue, which is: when GEOGRAPHY
supports other geographic SRIDs. The "convenient" automagic transform
turns into a hidden SRS coercion in order to maintain the transparency of
the operation. So you'll get conversions from nad83 to nad27 happening
silently under the covers if you should insert a 4269 geometry into a 4267
column. People keep telling me that kind of behavior is a Bad Thing, so I
hesitated to go down the road.
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Ticket URL: <http://trac.osgeo.org/postgis/ticket/265#comment:1>
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