[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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