[postgis-tickets] [PostGIS] #3010: PostGis Topology performance improvements: edge_data indexes

PostGIS trac at osgeo.org
Sun Dec 21 08:57:54 PST 2014


#3010: PostGis Topology performance improvements: edge_data indexes
---------------------------+------------------------------------------------
 Reporter:  bjornharrtell  |       Owner:  strk 
     Type:  enhancement    |      Status:  new  
 Priority:  medium         |   Milestone:       
Component:  topology       |     Version:  2.1.x
 Keywords:                 |  
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Comment(by bjornharrtell):

 Added some diagrams plotting time to load, per polygon, one million
 polygons into a topology. The whole process of loading ~1,3 million
 polygons took ~24h. This is after adding the indexes as described in this
 ticket, without the indexes I gave up loading this many polygons.

 Diagrams are named after max milliseconds displayed. Some funny patterns
 emerge when looking at max 6000 or 300 ms which I think is related to my
 input data. The max 50 ms diagram shows a logarithmic trend line clearly.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/3010#comment:2>
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