[tracker] SPARQL: Limit scope of blank nodes in insert templates

[Jürg Billeter <juergbi src gnome org>]

commit c13cda33932d5fd035f6bc597ad57f20c1cfe57a
Author: Jürg Billeter <j bitron ch>
Date:   Thu Nov 19 16:32:51 2009 +0100

    SPARQL: Limit scope of blank nodes in insert templates
    
    Blank nodes should be scoped to the template for each solution.

 src/libtracker-data/tracker-sparql-query.vala |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-data/tracker-sparql-query.vala b/src/libtracker-data/tracker-sparql-query.vala
index 9633657..2f37f42 100644
--- a/src/libtracker-data/tracker-sparql-query.vala
+++ b/src/libtracker-data/tracker-sparql-query.vala
@@ -862,6 +862,10 @@ public class Tracker.SparqlQuery : Object {
 		// iterate over all solutions
 		if (result_set != null) {
 			do {
+				// blank nodes in construct templates are per solution
+
+				uuid_generate (base_uuid);
+
 				// get values of all variables to be bound
 				var var_value_map = new HashTable<string,string>.full (str_hash, str_equal, g_free, g_free);
 				int var_idx = 0;