[postgis-devel] [PostGIS] #2101: SQL hooks for calling selectivity functions

PostGIS trac at osgeo.org
Tue Dec 4 11:57:09 PST 2012


#2101: SQL hooks for calling selectivity functions
--------------------------+-------------------------------------------------
  Reporter:  pramsey      |       Owner:  pramsey      
      Type:  enhancement  |      Status:  closed       
  Priority:  medium       |   Milestone:  PostGIS 2.1.0
 Component:  postgis      |     Version:  trunk        
Resolution:  fixed        |    Keywords:               
--------------------------+-------------------------------------------------
Changes (by pramsey):

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


Comment:

 functions available now
 {{{
 _postgis_selectivity(table, column, geometry_literal, mode)
 _postgis_join_selectivity(table1, column1, table1, column1, mode)
 _postgis_stats(table, column, mode)
 }}}
 the 'mode' in all cases can be '2' or 'N' to get the results in a 2D or ND
 domain. We actually store different stats histograms for 2D and ND, which
 is why the _postgis_stats also has a mode flag.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2101#comment:9>
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