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Fixed a copy paste errors and filtered out all edges with form (x,x)

Before, there were edges in this form (x,x) included but they shouldn't be included.
Nilan 12 years ago
parent
commit
8d0fccde3a
1 changed files with 2 additions and 1 deletions
  1. 2 1
      documents/musterloesung-db-2012-09-24/d2c2.sql

+ 2 - 1
documents/musterloesung-db-2012-09-24/d2c2.sql

@@ -4,9 +4,10 @@ FROM (
 ) f1
 JOIN ON
 (
-    SELECT personni FROM FriendshipSymmetric WHERE person1 = <id>
+    SELECT person2 FROM FriendshipSymmetric WHERE person1 = <id>
 ) f2
 EXCEPT
 (
     SELECT * FROM FriendshipSymmetric
 )
+WHERE f1.person2 != f2.person2