[postgis-tickets] [PostGIS] #3313: Where is money town? ST_PointGeoHash regression difference between 2.1.8 and 2.2.0

PostGIS trac at osgeo.org
Sun Oct 4 01:31:10 PDT 2015


#3313: Where is money town? ST_PointGeoHash regression difference between 2.1.8
and 2.2.0
----------------------+---------------------------
  Reporter:  robe     |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 2.2.0
 Component:  postgis  |    Version:  trunk
Resolution:           |   Keywords:
----------------------+---------------------------
Description changed by robe:

Old description:

> Which one of these is the right answer or are they both wrong?
>

> {{{
> SELECT  ST_AsText(ST_PointFromGeoHash('monkey')) As output,
>   ST_GeoHash(ST_PointFromGeoHash('monkey'));
> }}}
>
> In:
>
> {{{
> POSTGIS="2.2.0dev r14180" GEOS="3.5.0-CAPI-1.9.0 r4090" PROJ="Rel. 4.9.1,
> 04 March 2015" GDAL="GDAL 2.0.1, released 2015/09/15" LIBXML="2.7.8"
> LIBJSON="0.12" RASTER
>
>            output            |      st_geohash
> -----------------------------+----------------------
>  POINT(54.140625 -21.796875) | mhns0000000000000000
> (1 row)
>

> }}}
>

> {{{
>
> POSTGIS="2.1.8 r13780" GEOS="3.5.0-CAPI-1.9.0 r4088" PROJ="Rel. 4.8.0, 6
> March 2012" GDAL="GDAL 1.11.1, released 2014/09/24" LIBXML="2.7.8"
> LIBJSON="UNKNOWN" RASTER
>
>                   output                   |      st_geohash
> -------------------------------------------+----------------------
>  POINT(53.9593505859375 -44.1732788085938) | m0nkeys0000000000000
> (1 row)
> }}}
>

> I have to say I find the 2.1.8 answer more visually appealing

New description:

 Which one of these is the right answer or are they both wrong?


 {{{
 SELECT  ST_AsText(ST_PointFromGeoHash('monkey')) As output,
   ST_GeoHash(ST_PointFromGeoHash('monkey'));
 }}}

 In:

 {{{
 POSTGIS="2.2.0dev r14180" GEOS="3.5.0-CAPI-1.9.0 r4090" PROJ="Rel. 4.9.1,
 04 March 2015" GDAL="GDAL 2.0.1, released 2015/09/15" LIBXML="2.7.8"
 LIBJSON="0.12" RASTER

                   output                   |      st_geohash
 -------------------------------------------+----------------------
  POINT(53.9593505859375 -21.6732788085938) | mhnkeys0000000000000
 (1 row)

 }}}


 {{{

 POSTGIS="2.1.8 r13780" GEOS="3.5.0-CAPI-1.9.0 r4088" PROJ="Rel. 4.8.0, 6
 March 2012" GDAL="GDAL 1.11.1, released 2014/09/24" LIBXML="2.7.8"
 LIBJSON="UNKNOWN" RASTER

                   output                   |      st_geohash
 -------------------------------------------+----------------------
  POINT(53.9593505859375 -44.1732788085938) | m0nkeys0000000000000
 (1 row)
 }}}


 I have to say I find the 2.1.8 answer more visually appealing

--

--
Ticket URL: <https://trac.osgeo.org/postgis/ticket/3313#comment:2>
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