[postgis-tickets] [PostGIS] #2616: Reduce geometry::text conversion in topology functions

[PostGIS]

#2616: Reduce geometry::text conversion in topology functions
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 Reporter:  strk         |       Owner:  strk         
     Type:  enhancement  |      Status:  new          
 Priority:  low          |   Milestone:  PostGIS 2.1.2
Component:  topology     |     Version:  2.1.x        
 Keywords:               |  
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 A single call to TopoGeo_addPolygon, against an _empty_ topology, results
 in 24 calls to the text(geometry) function. The second most-called
 function is "postgis_type_name" (6 calls).

 The time spent in geometry::text is really not much (16th most expensive
 function) but still it sounds like something worth cleaning up.

 There are 2 tasks:

  1. Avoid converting the geometry multiple times within a single function
  2. Use EXECUTE .. USING expression (to avoid conversion to text as a
 whole)

 If someone is looking for an easy task to get used to the code, this is
 the perfect task :)

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2616>
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