From: Raúl Marín Rodríguez <rmrodriguez@carto.com>
Date: Tue, 24 Sep 2019 10:45:43 +0000 (+0000)
Subject: ST_RemoveRepeatedPoints: Optimize multipoints with single point
X-Git-Tag: 3.0.0beta1~12
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=66a95caed47fd1480b14dd588cee5efda9de3f24;p=postgis

ST_RemoveRepeatedPoints: Optimize multipoints with single point

References #4491
Closes https://github.com/postgis/postgis/pull/481



git-svn-id: http://svn.osgeo.org/postgis/trunk@17820 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/liblwgeom/lwgeom.c b/liblwgeom/lwgeom.c
index 87d8edc28..d1e40b6c6 100644
--- a/liblwgeom/lwgeom.c
+++ b/liblwgeom/lwgeom.c
@@ -1615,7 +1615,7 @@ lwgeom_remove_repeated_points_in_place(LWGEOM *geom, double tolerance)
 			int use_heap = (mpt->ngeoms > out_stack_size);
 
 			/* No-op on empty */
-			if (mpt->ngeoms == 0)
+			if (mpt->ngeoms < 2)
 				return geometry_modified;
 
 			/* We cannot write directly back to the multipoint */