From: Sarah Hoffmann <lonvia@denofr.de>
Date: Sun, 6 Jul 2014 21:15:53 +0000 (+0200)
Subject: fix member lookup in empty waterway relations
X-Git-Tag: v2.3.0~21
X-Git-Url: https://git.openstreetmap.org./nominatim.git/commitdiff_plain/2643225b72fe2d32ced5191511a059e88badac79

fix member lookup in empty waterway relations
---

diff --git a/sql/functions.sql b/sql/functions.sql
index dbb624f8..5c4cea05 100644
--- a/sql/functions.sql
+++ b/sql/functions.sql
@@ -1372,7 +1372,7 @@ BEGIN
 
     -- waterway ways are linked when they are part of a relation and have the same class/type
     IF NEW.osm_type = 'R' and NEW.class = 'waterway' THEN
-        FOR relation IN select * from planet_osm_rels r where r.id = NEW.osm_id
+        FOR relation IN select * from planet_osm_rels r where r.id = NEW.osm_id and r.parts != array[]::bigint[]
         LOOP
             FOR i IN 1..array_upper(relation.members, 1) BY 2 LOOP
                 IF relation.members[i+1] in ('', 'main_stream') AND substring(relation.members[i],1,1) = 'w' THEN