Refs #28459 -- Improved performance of ValuesIterable.

2017-08-08 11:02:59 +05:00 · 2017-08-08 11:02:59 +05:00 · fb0bdff981
parent b5d47b18f1
commit fb0bdff981
1 changed files with 2 additions and 1 deletions
--- a/django/db/models/query.py
+++ b/django/db/models/query.py
@ -102,8 +102,9 @@ class ValuesIterable(BaseIterable):
        # extra(select=...) cols are always at the start of the row.
        names = extra_names + field_names + annotation_names

+        indexes = range(len(names))
        for row in compiler.results_iter():
-            yield dict(zip(names, row))
+            yield {names[i]: row[i] for i in indexes}


 class ValuesListIterable(BaseIterable):