fix formatting

netzkolchose · Aug 4, 2022 · d009b4c · d009b4c
1 parent 202b815
commit d009b4c
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/fast_update/copy.py b/fast_update/copy.py
@@ -906,10 +906,12 @@ def copy_update(
         c.execute(f'CREATE TEMPORARY TABLE "{temp}" ({create_columns(column_def)})')
         copy_from(c, temp, objs, attnames, colnames, get, encs,
             encoding or CONNECTION_ENCODINGS[c.connection.encoding])
-        # micro optimization (~6x speedup in ./manage.py perf for 10 instances):
-        # for small changesets ANALYZE is much more expensive than a sequential scan
-        # of the temp table, tipping point is 150+-80 records (higher for less fields)
-        # --> enable ANALYZE for >100 only (assuming rather big records for copy_update)
+        # optimization (~6x speedup in ./manage.py perf for 10 instances):
+        # for small changesets ANALYZE is much more expensive than
+        # a sequential scan of the temp table
+        # tipping point is 150+-80 records (higher for less fields)
+        # --> enable ANALYZE for >100 only (assuming rather big records
+        #     for copy_update)
         if len(objs) > 100:
             c.execute(f'ANALYZE "{temp}" ({pk_field.column})')
         c.execute(update_sql(model._meta.db_table, temp, pk_field.column, fields))