fix: fix sql

PostgreSQL/src/functions.sql

@@ -1,5 +1,4 @@
 
-DROP FUNCTION pieces_membre(integer);
 CREATE OR REPLACE FUNCTION pieces_membre(int) RETURNS TABLE(id_piece int, quantite_piece int)
 AS 
 $$ 

PostgreSQL/src/select.sql

@@ -66,7 +66,8 @@ LIMIT 5
 
 SELECT id_modele, AVG(note_noter) as note_moyenne
 FROM noter
-GROUP BY id_modele
+NATURAL JOIN modeles
+GROUP BY modeles.id_modele
 ORDER BY note_moyenne
 DESC
 ;