[postgis-tickets] [PostGIS] #4096: ST_Intersects does not return error when comparing different SRIDs

PostGIS trac at osgeo.org
Thu May 24 07:34:04 PDT 2018


#4096: ST_Intersects does not return error when comparing different SRIDs
---------------------+---------------------------
 Reporter:  katbot   |      Owner:  pramsey
     Type:  defect   |     Status:  new
 Priority:  low      |  Milestone:  PostGIS 2.4.5
Component:  postgis  |    Version:  2.4.x
 Keywords:           |
---------------------+---------------------------
 I have Point geometry objects with SRID 4326 in one table, and
 MultiPolygon geometry objects with SRID 3042 in another.
 I was trying to find all the Points in the first table that fall within
 any MultiPolygon in the second. I originally tried the first query below,
 using ST_Intersects with different SRIDs but didn't get an error - the
 only messages are "O rows affected." The second query works fine and
 returns the expected data after transforming to the correct SRID. Is it a
 bug that there is no error returned when comparing different SRIDs?

 Query 1:
 {{{
 SELECT points.*
 FROM tweets AS points
 JOIN census_data AS poly
 ON ST_Intersects(poly.geom, points.tweet_geom);
 }}}

 Query 2:

 {{{
 SELECT points.*
 FROM tweets AS points
 JOIN census_data AS poly
 ON ST_Intersects(poly.geom, ST_Transform(points.tweet_geom, 3042));
 }}}


 PostGIS Version:
 "POSTGIS="2.4.4 r16526" PGSQL="100" GEOS="3.6.2-CAPI-1.10.2 4d2925d"
 PROJ="Rel. 4.9.3, 15 August 2016" GDAL="GDAL 2.2.4, released 2018/03/19"
 LIBXML="2.7.8" LIBJSON="0.12" LIBPROTOBUF="1.2.1" RASTER"

 PostgreSQL Version:
 "PostgreSQL 10.3, compiled by Visual C++ build 1800, 64-bit"

-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/4096>
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