[postgis-tickets] [PostGIS] #2862: PostGis Topology performance improvements : batch loading mode

PostGIS trac at osgeo.org
Sat Sep 24 03:08:29 PDT 2016


#2862: PostGis Topology performance improvements : batch loading mode
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  Reporter:  remic        |      Owner:  strk
      Type:  enhancement  |     Status:  new
  Priority:  medium       |  Milestone:  PostGIS Future
 Component:  topology     |    Version:  2.1.x
Resolution:               |   Keywords:
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Comment (by strk):

 FYI: I've been working on a function to "polygonize" correctly linked
 edges. Doesn't go all the way there (edge linking still has to be
 performed one by one) but may speedup the process significatively. I guess
 the interface for batch-loading would be the ISO ST_CreateTopoGeo
 function: http://postgis.net/docs/ST_CreateTopoGeo.html

 The recent polygonization work (registerFaces) can be found here:
 https://git.osgeo.org/gogs/strk/postgis/src/batch-topo-all-in-ram

 It exposes a TopoGeo_addLinestringNoFace (one by one) and a registerFaces
 (all in ram)

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/2862#comment:4>
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