Refs #16614 -- Made QuerySet.iterator() use server-side cursors on PostgreSQL.

Thanks to Josh Smeaton for the idea of implementing server-side cursors
in PostgreSQL from the iterator method, and Anssi Kääriäinen and Kevin
Turner for their previous work. Also Simon Charette and Tim Graham for
review.

1 files changed, 9 insertions, 0 deletions

diff --git a/docs/releases/1.11.txt b/docs/releases/1.11.txt
index 9be1f4c53d..9bb9a2e903 100644
--- a/docs/releases/1.11.txt
+++ b/docs/releases/1.11.txt
@@ -273,6 +273,11 @@ Database backends
 * Added the :setting:`TEST['TEMPLATE'] <TEST_TEMPLATE>` setting to let
   PostgreSQL users specify a template for creating the test database.
 
+* :meth:`.QuerySet.iterator()` now uses :ref:`server-side cursors
+  <psycopg2:server-side-cursors>` on PostgreSQL. This feature transfers some of
+  the worker memory load (used to hold query results) to the database and might
+  increase database memory usage.
+
 Email
 ~~~~~
 
@@ -527,6 +532,10 @@ Database backend API
 * Renamed the ``ignores_quoted_identifier_case`` feature to
   ``ignores_table_name_case`` to more accurately reflect how it is used.
 
+* The ``name`` keyword argument is added to the
+  ``DatabaseWrapper.create_cursor(self, name=None)`` method to allow usage of
+  server-side cursors on backends that support it.
+
 Dropped support for PostgreSQL 9.2 and PostGIS 2.0
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