[postgis-tickets] [SCM] PostGIS branch stable-3.0 updated. 3.0.3-34-gf29da5d

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- Log -----------------------------------------------------------------
commit f29da5d55f579b09710206550a5744164caef487
Author: Paul Ramsey <pramsey at cleverelephant.ca>
Date:   Thu Jul 29 15:35:05 2021 -0700

    NEWS entry for #4926

diff --git a/NEWS b/NEWS
index 8f1063d..0c17446 100644
--- a/NEWS
+++ b/NEWS
@@ -15,6 +15,7 @@ PostGIS 3.0.4dev
   - #4326, Fix CircularPolygon area calculation (Paul Ramsey)
   - #4917, Fix crasher with '-' regclass (Paul Ramsey)
   - #4919, Rare crash in selectivity calculation (Paul Ramsey)
+  - #4926, Preserve SRID on unions of empty geometry (Paul Ramsey)
 
 
 PostGIS 3.0.3

commit 7838435aa76a51447706e384378adde7c7edb0e8
Author: Paul Ramsey <pramsey at cleverelephant.ca>
Date:   Thu Jul 29 15:33:19 2021 -0700

    Preserve SRID on all-empty unions of geometry, closes #4926

diff --git a/postgis/lwgeom_geos.c b/postgis/lwgeom_geos.c
index d8580ab..6eebc72 100644
--- a/postgis/lwgeom_geos.c
+++ b/postgis/lwgeom_geos.c
@@ -550,6 +550,7 @@ Datum pgis_geometry_union_finalfn(PG_FUNCTION_ARGS)
 			{
 				int type = lwgeom_get_type(geom);
 				empty_type = type > empty_type ? type : empty_type;
+				srid = (srid != SRID_UNKNOWN ? srid : lwgeom_get_srid(geom));
 			}
 		}
 	}

-----------------------------------------------------------------------

Summary of changes:
 NEWS                  | 1 +
 postgis/lwgeom_geos.c | 1 +
 2 files changed, 2 insertions(+)


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