Added support for printing argument geoms on union failures

within unite_garray() loop.

git-svn-id: http://svn.osgeo.org/postgis/trunk@2326 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/lwgeom/lwgeom_jts.c b/lwgeom/lwgeom_jts.c
index b386938095381e23bb25a0b2f4a1e8326e2895e2..d9b9965c97247c2aceb01eb90e0f3244453a83fa 100644 (file)
--- a/lwgeom/lwgeom_jts.c
+++ b/lwgeom/lwgeom_jts.c
@@ -39,8 +39,6 @@ Datum polygonize_garray(PG_FUNCTION_ARGS);
 Datum LWGEOM_buildarea(PG_FUNCTION_ARGS);
 Datum linemerge(PG_FUNCTION_ARGS);
 
-
-
 /*
  * Define this to have have many notices printed
  * during postgis->geos and geos->postgis conversions
@@ -234,6 +232,31 @@ Datum unite_garray(PG_FUNCTION_ARGS)
                g2 = JTSUnion(g1,geos_result);
                if ( g2 == NULL )
                {
+//#define PGIS_SQL_FAILURES 1
+
+#ifdef PGIS_SQL_FAILURES
+                       LWGEOM *failing1, *failing2;
+                       char *hexwkb1, *hexwkb2;
+
+                       failing1 = JTS2LWGEOM(g1, 0);
+                       failing2 = JTS2LWGEOM(geos_result, 0);
+
+                       failing1->SRID=-1;
+                       failing2->SRID=-1;
+
+                       hexwkb1 = lwgeom_to_hexwkb(failing1, getMachineEndian());
+                       hexwkb2 = lwgeom_to_hexwkb(failing2, getMachineEndian());
+
+                       lwnotice("\nINSERT INTO jts_failures(g1,g2,op) VALUES ('%s', '%s', 'union');",
+                               hexwkb1, hexwkb2);
+
+                       lwgeom_release(failing1);
+                       lwgeom_release(failing2);
+
+                       // let it leak (getting memory errors otherwise)
+                       //free(hexwkb1);
+                       //free(hexwkb2);
+#endif
                        finishJTS();
                        lwerror("JTS union() threw an error!");
                        PG_RETURN_NULL();