[postgis-tickets] r15691 - #3841, handle empty == empty when types are same too

[Paul Ramsey]

Author: pramsey
Date: 2017-09-11 10:55:38 -0700 (Mon, 11 Sep 2017)
New Revision: 15691

Modified:
   trunk/postgis/geography_btree.c
Log:
#3841, handle empty == empty when types are same too


Modified: trunk/postgis/geography_btree.c
===================================================================
--- trunk/postgis/geography_btree.c	2017-09-11 17:52:50 UTC (rev 15690)
+++ trunk/postgis/geography_btree.c	2017-09-11 17:55:38 UTC (rev 15691)
@@ -73,8 +73,11 @@
 	/* Empty == Empty */
 	if (g1_is_empty && g2_is_empty)
     {
-        /* Actually make it so that POINT EMPTY < LINESTRING EMPTY */
-		return gserialized_get_type(g1) < gserialized_get_type(g2) ? -1 : 1;
+        /* POINT EMPTY == POINT EMPTY */
+        /* POINT EMPTY < LINESTRING EMPTY */
+        uint32_t t1 = gserialized_get_type(g1);
+        uint32_t t2 = gserialized_get_type(g2);
+		return t1 == t2 ? 0 : (t1 < t2 ? -1 : 1);
     }
 	
 	/* Empty < Non-empty */