[tracker] SPARQL: Simplify SQL for GROUP BY

[Jürg Billeter <juergbi src gnome org>]

commit 00db0df2116f9dfbed6906b6be24bc71d25b3d74
Author: Jürg Billeter <j bitron ch>
Date:   Wed Aug 12 10:59:59 2009 +0200

    SPARQL: Simplify SQL for GROUP BY

 src/libtracker-data/tracker-sparql-query.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-data/tracker-sparql-query.vala b/src/libtracker-data/tracker-sparql-query.vala
index 9933705..61b3c69 100644
--- a/src/libtracker-data/tracker-sparql-query.vala
+++ b/src/libtracker-data/tracker-sparql-query.vala
@@ -493,7 +493,7 @@ public class Tracker.SparqlQuery : Object {
 			assert (group.arg1.literal.type == Rasqal.Literal.Type.VARIABLE);
 			string variable_name = group.arg1.literal.as_variable ().name;
 
-			sql.append (get_sql_for_variable (variable_name));
+			sql.append_printf ("\"%s_u\"", variable_name);
 
 			if (group.op == Rasqal.Op.GROUP_COND_DESC) {
 				sql.append (" DESC");