[postgis-tickets] r15115 - use ST_Union instead of ST_Collect to compute raster max extent constraint

[Regina Obe]

Author: robe
Date: 2016-09-18 20:20:20 -0700 (Sun, 18 Sep 2016)
New Revision: 15115

Modified:
   branches/2.2/NEWS
   branches/2.2/raster/rt_pg/rtpostgis.sql.in
Log:
use ST_Union instead of ST_Collect to compute raster max extent constraint
References #3501 for PostGIS 2.2.3

Modified: branches/2.2/NEWS
===================================================================
--- branches/2.2/NEWS	2016-09-18 23:41:24 UTC (rev 15114)
+++ branches/2.2/NEWS	2016-09-19 03:20:20 UTC (rev 15115)
@@ -26,6 +26,8 @@
            perl @INC fix (Sebastiaan Couwenberg)
   - #3627, Encoded polyline functions ignore precision parameter
            (Christian Quest / Dan Baston)
+  - #3501 use ST_Union instead of ST_Collect to compute 
+          raster max extent constraint
 
 
 PostGIS 2.2.2

Modified: branches/2.2/raster/rt_pg/rtpostgis.sql.in
===================================================================
--- branches/2.2/raster/rt_pg/rtpostgis.sql.in	2016-09-18 23:41:24 UTC (rev 15114)
+++ branches/2.2/raster/rt_pg/rtpostgis.sql.in	2016-09-19 03:20:20 UTC (rev 15115)
@@ -7148,7 +7148,7 @@
 
 		cn := 'enforce_max_extent_' || $3;
 
-		sql := 'SELECT st_ashexewkb(st_envelope(st_collect(st_envelope('
+		sql := 'SELECT st_ashexewkb(st_envelope(st_union(st_envelope('
 			|| quote_ident($3)
 			|| ')))) FROM '
 			|| fqtn;