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112 Commits

Author SHA1 Message Date
Nick Pope
94b6f101f7 Fixed #29049 -- Added slicing notation to F expressions. 
Co-authored-by: Priyansh Saxena <askpriyansh@gmail.com>
Co-authored-by: Niclas Olofsson <n@niclasolofsson.se>
Co-authored-by: David Smith <smithdc@gmail.com>
Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
Co-authored-by: Abhinav Yadav <abhinav.sny.2002@gmail.com>
 2023-12-30 08:24:30 +01:00
Mariusz Felisiak
0be6dde817 Corrected code-block directives in docs. 2023-12-28 19:52:15 +01:00
Viicos
e28bd6776d Added missing import in docs/ref/models/expressions.txt. 2023-12-15 11:17:06 +01:00
Sarah Boyce
e4d012ca05 Refs #29850 -- Added exclusion support to window frames. 2023-10-30 12:04:55 +01:00
Sarah Boyce
6375cee490 Refs #29850 -- Added RowRange support for positive integer start and negative integer end. 2023-10-28 15:16:07 +02:00
Sarah Boyce
8992a0489c Fixed typos in docs/ref/models/expressions.txt. 2023-10-28 14:21:15 +02:00
Mariusz Felisiak
295467c04a Removed versionadded/changed annotations for 4.2. 
This also removes remaining versionadded/changed annotations for older
versions.
 2023-09-18 22:12:40 +02:00
Mariusz Felisiak
b719688b21 Fixed #34761 -- Dropped support for MySQL < 8.0.11. 2023-08-03 18:54:29 +02:00
Almaz Kunpeissov
5a3725594f Corrected pycon formatting in some docs. 2023-08-01 08:46:44 +02:00
nessita
6799288342 Added dedicated section for output_field in query expressions docs. 2023-06-27 15:05:08 -03:00
Ian Foote
7414704e88 Fixed #470 -- Added support for database defaults on fields. 
Special thanks to Hannes Ljungberg for finding multiple implementation
gaps.

Thanks also to Simon Charette, Adam Johnson, and Mariusz Felisiak for
reviews.
 2023-05-12 19:11:40 +02:00
django-bot
14459f80ee Fixed #34140 -- Reformatted code blocks in docs with blacken-docs. 2023-03-01 13:03:56 +01:00
Joseph Victor Zammit
ba755ca131 Refs #34140 -- Corrected rst code-block and various formatting issues in docs. 2023-02-28 12:21:37 +01:00
Carlton Gibson
534ac48297 Refs #34140 -- Applied rst code-block to non-Python examples. 
Thanks to J.V. Zammit, Paolo Melchiorre, and Mariusz Felisiak for
reviews.
 2023-02-10 19:19:13 +01:00
Mariusz Felisiak
94ad46e9d8 Refs #33543 -- Made Expression.asc()/desc() and OrderBy raise ValueError when nulls_first/nulls_last=False is passed. 
Per deprecation timeline.
 2023-01-17 11:49:15 +01:00
Mariusz Felisiak
490cccbe7e Removed versionadded/changed annotations for 4.1. 2023-01-17 11:49:15 +01:00
David Wobrock
a320aab512 Fixed #16211 -- Added logical NOT support to F expressions. 2022-10-31 09:55:51 +01:00
Simon Charette
c6350d594c Refs #30158 -- Removed alias argument for Expression.get_group_by_cols(). 
Recent refactors allowed GROUP BY aliasing allowed for aliasing to be
entirely handled by the sql.Query.set_group_by and compiler layers.
 2022-10-06 12:04:00 +02:00
Simon Charette
f387d024fc Refs #28333 -- Added partial support for filtering against window functions. 
Adds support for joint predicates against window annotations through
subquery wrapping while maintaining errors for disjointed filter
attempts.

The "qualify" wording was used to refer to predicates against window
annotations as it's the name of a specialized Snowflake extension to
SQL that is to window functions what HAVING is to aggregates.

While not complete the implementation should cover most of the common
use cases for filtering against window functions without requiring
the complex subquery pushdown and predicate re-aliasing machinery to
deal with disjointed predicates against columns, aggregates, and window
functions.

A complete disjointed filtering implementation should likely be
deferred until proper QUALIFY support lands or the ORM gains a proper
subquery pushdown interface.
 2022-08-15 08:26:26 +02:00
Mariusz Felisiak
ac90529cc5 Fixed docs build with sphinxcontrib-spelling 7.5.0+. 
sphinxcontrib-spelling 7.5.0+ includes captions of figures in the set
of nodes for which the text is checked.
 2022-05-31 11:17:01 +02:00
Carlton Gibson
ca1c3151c3 Removed versionadded/changed annotations for 4.0. 2022-05-17 14:22:06 +02:00
Mariusz Felisiak
68da6b389c Fixed #33543 -- Deprecated passing nulls_first/nulls_last=False to OrderBy and Expression.asc()/desc(). 
Thanks Allen Jonathan David for the initial patch.
 2022-05-12 11:30:03 +02:00
David
ce586ed693 Removed hyphen from pre-/re- prefixes. 
"prepopulate", "preload", and "preprocessing" are already in the
spelling_wordlist.

This also removes hyphen from double "e" combinations with "pre" and
"re", e.g. preexisting, preempt, reestablish, or reenter.

See also:
- https://ahdictionary.com/word/search.html?q=rerun
- https://ahdictionary.com/word/search.html?q=recreate
- https://ahdictionary.com/word/search.html?q=predetermined
- https://ahdictionary.com/word/search.html?q=reuse
- https://ahdictionary.com/word/search.html?q=reopening
 2022-04-28 10:44:14 +02:00
Nick Pope
847f46e9bf Removed redundant QuerySet.all() calls in docs and tests. 
Most QuerySet methods are mapped onto the Manager and, in general,
it isn't necessary to call .all() on the manager.
 2022-02-22 10:29:38 +01:00
Mariusz Felisiak
4400d8568a Fixed #33391 -- Clarified Aggregate.empty_result_set_value docs. 2021-12-31 06:49:10 +01:00
Simon Charette
aec71aaa5b Fixed #33304 -- Allowed passing string expressions to Window(order_by). 2021-11-23 07:58:44 +01:00
David Wobrock
ad36a198a1 Fixed #33141 -- Renamed Expression.empty_aggregate_value to empty_result_set_value. 2021-09-29 12:58:01 +02:00
Mariusz Felisiak
97237ad3fe Removed versionadded/changed annotations for 3.2. 2021-09-20 21:23:01 +02:00
David Sanders
ecf76cc1fb Clarified type of Window()'s partition_by and order_by arguments. 2021-09-10 11:49:51 +02:00
Nick Pope
501a8db465 Fixed #10929 -- Added default argument to aggregates. 
Thanks to Simon Charette and Adam Johnson for the reviews.
 2021-07-19 13:04:27 +02:00
Ian Foote
f42ccdd835 Fixed #27021 -- Allowed lookup expressions in annotations, aggregations, and QuerySet.filter(). 
Thanks Hannes Ljungberg and Simon Charette for reviews.

Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
 2021-07-09 11:43:06 +02:00
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
Simon Willison
e53159747c Doc'd that RawSQL can be used with __in. 2021-03-25 10:28:20 +01:00
Mariusz Felisiak
fdc3d9dcaf Removed unused import in docs/ref/models/expressions.txt. (#13879) 2021-01-12 10:51:38 +01:00
Kevin Marsh
45f4282149 Refs #31792 -- Updated SQL example in Exists() docs. 
Follow up to 51297a9232.
 2020-12-10 21:01:57 +01:00
Ian Foote
8b040e3cbb Fixed #25534, Fixed #31639 -- Added support for transform references in expressions. 
Thanks Mariusz Felisiak and Simon Charette for reviews.
 2020-11-27 20:42:04 +01:00
Simon Charette
1e38f1191d Fixed #30446 -- Resolved Value.output_field for stdlib types. 
This required implementing a limited form of dynamic dispatch to combine
expressions with numerical output. Refs #26355 should eventually provide
a better interface for that.
 2020-07-15 10:58:29 +02:00
Mariusz Felisiak
4c5236ef93 Removed versionadded/changed annotations for 3.0. 2020-05-13 09:07:51 +02:00
Adam Johnson
1c2c6f1b51 Fixed a/an typos in "SQL" usage. 2020-05-06 06:35:26 +02:00
Hasan Ramezani
6929f13254 Fixed #31368 -- Doc'd 'expression' parameter of Field.from_db_value()/Expression.convert_value(). 2020-03-18 09:37:05 +01:00
Adam Johnson
8c1b073b59 Doc'd return values of as_sql() for Func and query expressions. 2020-03-06 13:02:08 +01:00
Taoup
cebd41e416 Fixed #31110 -- Fixed typo in docs/ref/models/expressions.txt. 2019-12-21 20:33:04 +01:00
Mariusz Felisiak
416c584cab Removed versionadded/changed annotations for 2.2. 2019-09-10 12:01:00 +02:00
Tobias Kunze
4a954cfd11 Fixed #30573 -- Rephrased documentation to avoid words that minimise the involved difficulty. 
This patch does not remove all occurrences of the words in question.
Rather, I went through all of the occurrences of the words listed
below, and judged if they a) suggested the reader had some kind of
knowledge/experience, and b) if they added anything of value (including
tone of voice, etc). I left most of the words alone. I looked at the
following words:

- simply/simple
- easy/easier/easiest
- obvious
- just
- merely
- straightforward
- ridiculous

Thanks to Carlton Gibson for guidance on how to approach this issue, and
to Tim Bell for providing the idea. But the enormous lion's share of
thanks go to Adam Johnson for his patient and helpful review.
 2019-09-06 13:27:46 +02:00
Matthew Schinckel
4137fc2efc Fixed #25367 -- Allowed boolean expressions in QuerySet.filter() and exclude(). 
This allows using expressions that have an output_field that is a
BooleanField to be used directly in a queryset filters, or in the
When() clauses of a Case() expression.

Thanks Josh Smeaton, Tim Graham, Simon Charette, Mariusz Felisiak, and
Adam Johnson for reviews.

Co-Authored-By: NyanKiyoshi <hello@vanille.bid>
 2019-08-29 09:45:29 +02:00
Matthew Schinckel
dba749917f Doc'd for_save argument of Expression.resolve_expression(). 2019-08-27 16:54:01 +02:00
Vyacheslav Ver
76b3fc5c8d Fixed #30486 -- Fixed the default value of Aggregate.distinct and updated example of custom aggregate functions. 2019-06-11 11:40:48 +02:00
Vyacheslav Ver
60b6a7ea9d Fixed typo in expression documentation. 2019-05-16 16:03:27 +02:00
Daniel Musketa
6fd9c9daa6 Fixed #30365 -- Fixed syntax highlighting in SQL examples. 
Sphinx interprets some "%[a-z]" in SQL statements as a
"Literal.String.Interpol" which leads to incorrect highlighting.
 2019-04-23 12:37:50 +02:00
sage
bfae195b0a Fixed #30326 -- Doc'd how to avoid persistence of F() assignment. 2019-04-15 08:57:33 +02:00