[tracker] SPARQL: Fix crash with unsupported predicate variable query

[Jürg Billeter <juergbi src gnome org>]

commit 5ba594b9571e0a78a68bc0358f4f6e570f376bdf
Author: Jürg Billeter <j bitron ch>
Date:   Fri Sep 4 14:20:06 2009 +0200

    SPARQL: Fix crash with unsupported predicate variable query

 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 aeb9d87..ba93fd3 100644
--- a/src/libtracker-data/tracker-sparql-query.vala
+++ b/src/libtracker-data/tracker-sparql-query.vala
@@ -231,7 +231,7 @@ public class Tracker.SparqlQuery : Object {
 				}
 			} else {
 				// UNION over all properties would exceed SQLite limits
-				throw get_internal_error ("Unrestricted predicate variables not supported");
+				throw query.get_internal_error ("Unrestricted predicate variables not supported");
 			}
 			return sql.str;
 		}