Simon Charette 9f3cce172f Refs #26430 -- Re-introduced empty aggregation optimization. ...

The introduction of the Expression.empty_aggregate_value interface
allows the compilation stage to enable the EmptyResultSet optimization
if all the aggregates expressions implement it.

This also removes unnecessary RegrCount/Count.convert_value() methods.
Disabling the empty result set aggregation optimization when it wasn't
appropriate prevented None returned for a Count aggregation value.

Thanks Nick Pope for the review.

2021-07-02 07:25:42 +02:00

..

class-based-views

Refs #32720 -- Updated various links in docs to avoid redirects and use HTTPS.

2021-05-17 09:46:09 +02:00

contrib

Fixed #32850 -- Doc'd Sitemap.paginator.

2021-06-30 20:11:49 +02:00

files

Corrected File, ContentFile, and ImageFile signatures in docs.

2021-04-16 06:17:45 +02:00

forms

Refs #32338 -- Improved accessibility of RadioSelect examples in docs.

2021-06-04 08:28:25 +02:00

models

Refs #26430 -- Re-introduced empty aggregation optimization.

2021-07-02 07:25:42 +02:00

templates

Refs #32720 -- Updated various links in docs to avoid redirects and use HTTPS.

2021-05-17 09:46:09 +02:00

applications.txt

Fixed #32570 -- Removed unnecessary default_auto_field in app config example.

2021-03-19 12:08:46 +01:00

checks.txt

Fixed #32195 -- Added system check for invalid view in path() and improved error messages.

2021-06-09 09:06:42 +02:00

clickjacking.txt

Refs #32720 -- Updated various links in docs to avoid redirects and use HTTPS.

2021-05-17 09:46:09 +02:00

csrf.txt

Fixed #16010 -- Added Origin header checking to CSRF middleware.

2021-03-18 20:25:20 +01:00

databases.txt

Refs #32720 -- Updated various links in docs to avoid redirects and use HTTPS.

2021-05-17 09:46:09 +02:00

django-admin.txt

Refs #32720 -- Updated various links in docs to avoid redirects and use HTTPS.

2021-05-17 09:46:09 +02:00

exceptions.txt

…

index.txt

Refs #32880 -- Moved logging reference to new document.

2021-06-30 07:21:52 +02:00

logging.txt

Refs #32880 -- Moved logging reference to new document.

2021-06-30 07:21:52 +02:00

middleware.txt

Refs #32720 -- Updated various links in docs to avoid redirects and use HTTPS.

2021-05-17 09:46:09 +02:00

migration-operations.txt

…

paginator.txt

Fixed page numbers in Paginator.get_elided_page_range() example in docs.

2021-03-24 07:35:24 +01:00

request-response.txt

Doc'd that HttpRequest.path doesn't contain a query string.

2021-05-19 11:23:56 +02:00

schema-editor.txt

…

settings.txt

Fixed #32379 -- Started deprecation toward changing default USE_TZ to True.

2021-05-18 20:26:44 +02:00

signals.txt

…

template-response.txt

…

unicode.txt

…

urlresolvers.txt

…

urls.txt

…

utils.txt

…

validators.txt

…

views.txt

…