[postgis-devel] [PostGIS] #1991: geocode really slow on PostgreSQL 9.2
PostGIS
trac at osgeo.org
Wed Sep 12 08:59:04 PDT 2012
#1991: geocode really slow on PostgreSQL 9.2
----------------------------+-----------------------------------------------
Reporter: robe | Owner: robe
Type: defect | Status: new
Priority: medium | Milestone: PostGIS 2.0.2
Component: tiger geocoder | Version: trunk
Keywords: |
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Comment(by robe):
Okay it seems in 9.2, reducing the join collapse limit makes it behave as
fast as the old versions
e.g.:
{{{
SET join_collapse_limit = '2';
}}}
Make both queries work at the faster speed and use the bitmapor strategy
again.So not sure this is a real issue or just something to be cognizant
of.
The default is 8, but if I increase above 4 it gets bad.
--
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1991#comment:1>
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