Making redundant reading deletion more efficient with a smaller evalu…

…ation window.
audacious-software · Aug 1, 2016 · 0ea9abb · 0ea9abb
1 parent 2b45303
commit 0ea9abb
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/management/commands/delete_redundant_readings.py b/management/commands/delete_redundant_readings.py
@@ -29,7 +29,9 @@ def add_arguments(self, parser):
     def handle(self, *args, **options):
         to_delete = []
 
-        matches = DataPoint.objects.order_by('source', 'generator_identifier', 'created').values('source', 'generator_identifier', 'created').annotate(Count('pk'))
+        start = timezone.now() - datetime.timedelta(hours=4)
+
+        matches = DataPoint.objects.filter(recorded__gte=start).order_by('source', 'generator_identifier', 'created').values('source', 'generator_identifier', 'created').annotate(Count('pk'))
 
         dupes = []