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Speed up deletions #981

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Speed up deletions #981

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4 changes: 3 additions & 1 deletion reversion/management/commands/deleterevisions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -73,7 +73,7 @@ def handle(self, *app_labels, **options):
).values_list("revision_id", flat=True)[:keep].iterator())
# Add to revision query.
revision_query |= models.Q(
pk__in=model_query.order_by().values_list("revision_id", flat=True)
pk__in=model_query.order_by().values_list("revision_id", flat=True).distinct()
)
# If we have at least one model, then we can delete.
can_delete = True
Expand All @@ -91,4 +91,6 @@ def handle(self, *app_labels, **options):
self.stdout.write("Deleting {total} revisions...".format(
total=revisions_to_delete.count(),
))
qs = Version.objects.filter(revision__in=revisions_to_delete)
qs._raw_delete(qs.db)
revisions_to_delete.delete()
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