id summary reporter owner description type status priority milestone component version resolution keywords cc 2433 ST_ConcaveHull 2.1 regress failure compared to 2.0 (underlying issue st_dumppoints) robe pramsey "This worked in 2.0.3 {{{ SELECT ST_ConcaveHull('SRID=4326;MULTIPOINTM(-71.0821 42.3036 1,-71.0821 67.3036 1,-56.0821 42.3036 1,-56.0821 67.3036 1,-41.0821 42.3036 1,-41.0821 67.3036 1,-26.0821 42.3036 1,-26.0821 67.3036 1,-11.0821 42.3036 1,-11.0821 67.3036 1,3.9179 42.3036 1,3.9179 67.3036 1,18.9179 42.3036 1,18.9179 67.3036 1,33.9179 42.3036 1,33.9179 67.3036 1,48.9179 42.3036 1,48.9179 67.3036 1,-71.0821 42.3036 2,-71.0821 67.3036 2,-56.0821 42.3036 2,-56.0821 67.3036 2,-41.0821 42.3036 2,-41.0821 67.3036 2,-26.0821 42.3036 2,-26.0821 67.3036 2,-11.0821 42.3036 2,-11.0821 67.3036 2,3.9179 42.3036 2,3.9179 67.3036 2,18.9179 42.3036 2,18.9179 67.3036 2,33.9179 42.3036 2,33.9179 67.3036 2,48.9179 42.3036 2,48.9179 67.3036 2)'::geometry , 0.5,false) }}} and gave answer: {{{ -- The ST_AsEWKT output -- PostgreSQL 9.2.4, compiled by Visual C++ build 1600, 32-bit POSTGIS=""2.0.3 r11132"" GEOS=""3.5.0dev-CAPI-1.9.0 r0"" PROJ=""Rel. 4.8.0, 6 March 2012"" GDAL=""GDAL 1.10.0, released 2013/04/24"" LIBXML=""2.7.8"" LIBJSON=""UNKNOWN"" RASTER SRID=4326;POLYGON((-71.0821 42.3036,-71.0821 67.3036,48.9179 67.3036,48.9179 42.3036,-71.0821 42.3036)) }}} Which makes sense if we drop the M as I would expect it to. In 2.1.0 branch {{{ -- PostgreSQL 9.2.4, compiled by Visual C++ build 1600, 32-bit POSTGIS=""2.1.0rc3 r11766"" GEOS=""3.5.0dev-CAPI-1.9.0 r0"" PROJ=""Rel. 4.8.0, 6 March 2012"" GDAL=""GDAL 1.10.0, released 2013/04/24"" LIBXML=""2.7.8"" LIBJSON=""UNKNOWN"" RASTER ERROR: Operation on mixed SRID geometries CONTEXT: PL/pgSQL function st_concavehull(geometry,double precision,boolean) line 63 at assignment ********** Error ********** }}} This could be a bug in my code I suppose that it might be missing resetting the SRID but why it worked in 2.0.3 and not in 2.1.0 is a bit troubling. " defect closed high PostGIS 2.1.1 postgis 2.1.x fixed