[postgis-tickets] [PostGIS] #4269: Inconsistent result for ST_Intersects depending on the plan

PostGIS trac at osgeo.org
Thu Jan 17 14:32:10 PST 2019


#4269: Inconsistent result for ST_Intersects depending on the plan
-------------------------+---------------------------
  Reporter:  Algunenano  |      Owner:  pramsey
      Type:  defect      |     Status:  closed
  Priority:  critical    |  Milestone:  PostGIS 2.4.7
 Component:  postgis     |    Version:  2.5.x
Resolution:  invalid     |   Keywords:
-------------------------+---------------------------
Changes (by pramsey):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 And to address the join thing, we're almost certainly seeing an effect of
 the cache, where one join form pushes the data through in a different
 order from the other, so you get a full intersects once and a prepared
 geometry call the next time, and they give different answers when handed
 that invalid.

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4269#comment:9>
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