From 82e551cce4631f3db53101230e09039afe331f32 Mon Sep 17 00:00:00 2001
From: LtWorf <LtWorf@014f5005-505e-4b48-8d0a-63407b615a7c>
Date: Mon, 14 Jul 2008 13:04:32 +0000
Subject: [PATCH] preventing duplicated fields in projection

git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@4 014f5005-505e-4b48-8d0a-63407b615a7c
---
 relation.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/relation.py b/relation.py
index d52a09d..d9175ab 100644
--- a/relation.py
+++ b/relation.py
@@ -81,6 +81,13 @@ class relation (object):
 		if fields[0].__class__ == list().__class__:
 			fields=fields[0]
 		
+		#Avoiding duplicated fields
+		fields1=[]
+		for i in fields:
+			if i not in fields1:
+				fields1.append(i)
+		fields=fields1
+		
 		ids=self.header.getFieldsId(fields)
 		
 		if len(ids)==0: