[postgis-tickets] [PostGIS] #2737: [PATCH] Upgrade of spatial_ref_sys.sql to EPSG v8.4

[PostGIS]

#2737: [PATCH] Upgrade of spatial_ref_sys.sql to EPSG v8.4
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 Reporter:  rouault  |       Owner:  robe         
     Type:  patch    |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.2.0
Component:  postgis  |     Version:               
 Keywords:           |  
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Comment(by rouault):

 Regina,

 yes there has been some fluctuency in the method to deal with datum
 expension or not. Originally (postgis 1.5 time), datum names were passed.
 Then there was a change in OGR that expanded them, but GRASS folks were
 not happy with that for various reasons (but for reprojection matter, they
 are equivalent), so we backed that when generating proj EPSG and postgis
 spatial_ref_sys.sql by defining "--config OVERRIDE_PROJ_DATUM_WITH_TOWGS84
 NO" in the epsg_tr.py script that generates those files from GDAL SRS
 database.

 For EPSG:4756, the definition with the towgs84 is certainly better than
 the one that doesn't have it. Some time ago FrankW added improvements to
 get the preferred datum shift parameters.

 All in all, I believe the updated definition is better or equivalent than
 the previous ones.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2737#comment:4>
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