c21f158295
Fixed #28944 -- Fixed crash when chaining values()/values_list() after QuerySet.select_for_update(of=()).
2017-12-26 11:41:17 -05:00
d13a9e44de
Fixed #28909 -- Simplified code using tuple/list/set/dict unpacking.
2017-12-11 07:08:45 -05:00
2b81faab25
Fixed #28906 -- Removed unnecessary bool() calls.
2017-12-07 17:13:07 -05:00
d97f026a7a
Fixed #28817 -- Made QuerySet.iterator() use server-side cursors after values() and values_list().
2017-11-21 10:33:56 -05:00
2d3cc94284
Fixed #28781 -- Added QuerySet.values()/values_list() support for union(), difference(), and intersection().
...
Thanks Tim Graham for the review.
2017-11-12 14:28:11 +01:00
03049fb8d9
Refs #28010 -- Allowed reverse related fields in SELECT FOR UPDATE .. OF.
...
Thanks Adam Chidlow for polishing the patch.
2017-10-28 20:33:42 -04:00
0899d583bd
Fixed #28670 -- Added FETCH/OFFSET support on Oracle.
...
Thanks Tim Graham for the review.
2017-10-09 18:07:03 +02:00
11ade8eefd
Refs #24254 -- Removed unnecessary SQL AS clause in SQLCompiler.as_sql().
...
Incorrect on Oracle.
2017-10-06 12:47:41 -04:00
03da070f5c
Refs #28670 -- Moved LIMIT/OFFSET SQL to DatabaseOperations.limit_offset_sql().
...
Thanks Tim Graham for the review.
2017-10-04 20:24:38 +02:00
51d230e00b
Fixed #28675 -- Removed always True variable in SQLInsertCompiler.execute_sql() check.
...
Unused since 7deb25b8dd
2017-10-03 10:32:11 -04:00
5d9b736fd8
Fixed #28652 -- Fixed a few comments in django/db/models/*.
2017-10-02 11:15:26 -04:00
01d440fa1e
Fixed #27332 -- Added FilteredRelation API for conditional join (ON clause) support.
...
Thanks Anssi Kääriäinen for contributing to the patch.
2017-09-22 11:53:17 -04:00
d549b88050
Fixed #26608 -- Added support for window expressions (OVER clause).
...
Thanks Josh Smeaton, Mariusz Felisiak, Sergey Fedoseev, Simon Charettes,
Adam Chainz/Johnson and Tim Graham for comments and reviews and Jamie
Cockburn for initial patch.
2017-09-18 09:42:29 -04:00
cb362a6750
Removed unnecessary check in SQLCompiler.get_related_selections().
2017-09-15 08:37:46 -04:00
8b2515a450
Removed unneeded __init__() methods.
2017-09-07 08:10:49 -04:00
2470756de0
Moved select_sql in SQLCompiler.get_extra_select() to improve performance.
2017-09-02 16:39:51 -04:00
dca67bb2c2
Refs #28459 -- Improved performance of SQLCompiler.apply_converters().
2017-08-23 16:26:24 -04:00
b8731c3fff
Refs #28459 -- Improved performance of sql.compiler.cursor_iter().
2017-08-08 14:07:03 -04:00
ca46f4688c
Refs #28459 -- Improved performance of SQLCompiler.results_iter().
2017-08-07 17:06:15 -04:00
32d1bf2bdb
Fixed #28454 -- Simplifed use of Query.setup_joins() by returning a named tuple.
2017-08-01 14:25:54 -04:00
62dee1483d
Refs #28370 -- Moved db converters deprecation warning to improve performance.
2017-08-01 08:05:32 -04:00
6155bc4a51
Refs #20880 -- Removed non-cloning logic from Query.clone().
2017-07-31 15:31:29 -04:00
487362fa8f
Fixed #28370 -- Deprecated the context arg of Field.from_db_value() and Expression.convert_value().
...
Unused since a0d166306f
2017-07-20 16:30:08 -04:00
adab280cef
Fixed #28399 -- Fixed QuerySet.count() for union(), difference(), and intersection() queries.
2017-07-15 08:20:12 -04:00
ca74e56350
Fixed #28378 -- Fixed union() and difference() when combining with a queryset raising EmptyResultSet.
...
Thanks Jon Dufresne for the report. Thanks Tim Graham and Simon Charette
for the reviews.
2017-07-10 20:40:08 +02:00
b9f7dce84b
Fixed #28010 -- Added FOR UPDATE OF support to QuerySet.select_for_update().
2017-06-29 16:00:15 -04:00
f7f5edd50d
Removed obsolete Query.tables attribute.
...
Obsolete since Query.alias_map became an OrderedDict (refs #26522 ).
2017-06-29 11:09:11 -04:00
82175ead72
Fixed #28293 -- Fixed union(), intersection(), and difference() when combining with an EmptyQuerySet.
...
Thanks Jon Dufresne for the report and Tim Graham for the review.
2017-06-13 08:16:16 +02:00
edee5a8de6
Fixed #27639 -- Added chunk_size parameter to QuerySet.iterator().
2017-06-01 17:50:41 -04:00
21046e7773
Fixed #28249 -- Removed unnecessary dict.keys() calls.
...
iter(dict) is equivalent to iter(dict.keys()).
2017-05-27 19:08:46 -04:00
4acae21846
Fixed #24254 -- Fixed queries using the __in lookup with querysets using distinct() and order_by().
...
Thanks Tim for the review.
2017-05-11 21:50:07 -04:00
daf2bd3efe
Fixed #28107 -- Disabled grouping of selected primary keys for unmanaged models.
...
The grouping caused an issue with database views as PostgreSQL's query planer
isn't smart enough to introspect primary keys through views. Django doesn't
support database views but documents that unmanaged models should be used to
query them.
Thanks powderflask for the detailed report and investigation.
2017-05-11 20:00:57 -04:00
e7afef13f5
Fixed #26788 -- Fixed QuerySet.update() crash when updating a geometry to another one.
2017-04-10 13:26:26 -04:00
054a44d6f0
Used NotSupportedError instead of DatabaseError in SQLCompiler.as_sql().
2017-04-10 12:49:27 -04:00
695d4dd790
Fixed #23147 -- Disabled a limit/offset on a query with select_for_update on Oracle.
...
Thanks Shai Berger and Tim Graham for the reviews.
2017-04-07 14:08:07 +02:00
1d070d027c
Fixed #25414 -- Fixed QuerySet.annotate() with pk in values() on MySQL.
...
Thanks Tim Graham and Simon Charette for the reviews.
2017-03-29 06:47:07 +02:00
60e52a047e
Refs #27656 -- Updated django.db docstring verbs according to PEP 257.
2017-02-28 09:17:27 -05:00
d6eaf7c018
Refs #23919 -- Replaced super(ClassName, self) with super().
2017-01-25 12:23:46 -05:00
ebf34c3cdc
Removed unused variables that are overwritten.
2017-01-25 09:14:05 -05:00
d170c63351
Refs #23919 -- Removed misc references to Python 2.
2017-01-21 20:02:00 -05:00
cecc079168
Refs #23919 -- Stopped inheriting from object to define new style classes.
2017-01-19 08:39:46 +01:00
2b281cc35e
Refs #23919 -- Removed most of remaining six usage
...
Thanks Tim Graham for the review.
2017-01-18 21:33:28 +01:00
84c1826ded
Fixed #27718 -- Added QuerySet.union(), intersection(), difference().
...
Thanks Mariusz Felisiak for review and Oracle assistance.
Thanks Tim Graham for review and writing docs.
2017-01-14 08:32:07 -05:00
6b6be692fc
Refs #16614 -- Prevented database errors from being masked by cursor close.
...
When an error occurred during the cursor.execute statement, the cursor
is closed. This operation did not fail with client-side cursors. Now,
with server-side cursors, the close operation might fail (example
below). The original error should be raised, not the one raised by
cursor.close(), this is only clean-up code.
For example, one can attempt to create a named cursor for an invalid
query. psycopg will raise an error about the invalid query and the
server-side cursor will not be created on PostgreSQL. When the code
attempts to cursor.close(), it asks psycopg to close a cursor that was
not created. pyscopg raises a new error: psycopg2.OperationalError:
cursor "_django_curs_140365867840512_20" does not exist.
2017-01-14 07:13:00 -05:00
f3b7c05936
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.
2017-01-11 09:25:37 -05:00
00c7bfadf4
Removed unused enumerate.
2016-12-29 14:55:17 +01:00
7da37699e8
Fixed #27594 -- Fixed select_related() with reverse self-referential OneToOneField.
...
Fixed definition of `klass_info['from_parent']` so that two models aren't
considered from a parent class if the model classes are the same.
2016-12-14 07:46:27 -05:00
1bc249c2a6
Fixed #20939 -- Simplified query generation by converting QuerySet to Query.
...
Thanks Anssi Kääriäinen for the initial patch and Anssi, Simon Charette,
and Josh Smeaton for review.
2016-10-28 11:20:23 -04:00
df1796b13f
Removed unused branch in SQLUpdateCompiler.as_sql().
...
Unknown if it was ever needed.
2016-10-13 16:56:26 -04:00
816eae3508
Removed unused EmptyResultSets in SQLCompilers.
...
Unused since ed1bcf0515
2016-10-13 12:12:58 -04:00
8ac115c730
Fixed #27193 -- Preserved ordering in select_for_update subqueries.
2016-10-04 10:46:29 -04:00
419b6ec7d0
Removed unused branch in SQLCompiler.as_subquery_condition().
...
Unused since dcdc579d16
2016-09-27 09:58:53 -04:00
bae64dd0f1
Fixed #27062 -- Eased implementing select_for_update() on MSSQL.
2016-09-09 11:57:38 -04:00
b8e6e1b43b
Fixed #26500 -- Added SKIP LOCKED support to select_for_update().
...
Thanks Tim for the review.
2016-08-08 12:01:43 -04:00
46509cf13d
Moved EmpytResultSet to django.core.exceptions.
...
This removes the need for some inner imports.
2016-08-08 10:43:34 -04:00
c002a0d39f
Fixed #26517 -- Fixed ExpressionWrapper with empty queryset.
2016-08-08 10:43:33 -04:00
df8d8d4292
Fixed E128 flake8 warnings in django/.
2016-04-08 09:51:06 -04:00
359be4460e
Refs #19527 -- Fixed SQL compiler regression causing Oracle failure.
2016-03-05 14:02:35 -05:00
04240b2365
Refs #19527 -- Allowed QuerySet.bulk_create() to set the primary key of its objects.
...
PostgreSQL support only.
Thanks Vladislav Manchev and alesasnouski for working on the patch.
2016-03-02 14:29:09 -05:00
ee596888e1
Fixed #26092 -- Fixed QuerySet.order_by() regression with an M2M through model.
2016-01-20 19:13:05 -05:00
ed1bcf0515
Refs #25894 -- Fixed evaluation of zero-length slices of QuerySet.values() on Oracle.
2015-12-17 17:07:10 -05:00
69b69f6d60
Fixed #25894 -- Fixed evaluation of zero-length slices of QuerySet.values().
2015-12-15 07:29:35 -05:00
92eced62cd
Simplified lists creation in three places.
2015-11-17 07:58:49 -05:00
67732a9b18
Fixed #24687 -- Added select_related() validation for nested non-relational fields.
...
The removed test was added in the original select_related() validation
patch (45d4e43d2d
2015-10-10 09:48:50 -04:00
3f50dc2be5
Removed SQLCompiler.__call__() per deprecation timeline.
2015-09-23 19:31:09 -04:00
134ca4d438
Fixed #24509 -- Added Expression support to SQLInsertCompiler
2015-09-22 23:35:24 +10:00
233b46f931
Fixed #19263 -- Fixed crash when filtering using __in and an empty QuerySet.
...
Thanks Marcin Biernat for the initial patch and tests.
2015-09-04 07:44:36 -04:00
333cbdcd2d
Fixed #24951 -- Fixed AssertionError in delete queries involving a foreign/primary key.
...
Thanks Anssi Kääriäinen for help.
2015-08-20 08:14:16 -04:00
1f7b25c1a7
Fixed #24986 -- Added support for annotations in DISTINCT queries.
2015-08-15 08:23:32 -04:00
5d60d2b457
Adjusted SQLCompiler.get_order_by()'s docstring return value.
2015-07-28 10:49:26 -04:00
aaacaeb096
Renamed RemovedInDjangoXYWarnings for new roadmap.
...
Forwardport of ae1d663b79
2015-06-24 16:08:20 -04:00
adc57632bc
Fixed #24748 -- Fixed incorrect GROUP BY on MySQL in some queries
...
When the query's model had a self-referential foreign key, the
compiler.get_group_by() code incorrectly used the self-referential
foreign key's column (for example parent_id) as GROUP BY clause
when it should have used the model's primary key column (id).
2015-05-11 11:42:27 -04:00
b44ed404c7
Fixed #24654 -- Based ordering circular references detection on columns.
...
Thanks to Elmar Bucher for the report and Tim for the review.
2015-04-20 15:49:58 -04:00
355c5edd93
Fixed #24605 -- Fixed incorrect reference to alias in subquery.
...
Thanks to charettes and priidukull for investigating the issue, and to
kurevin for the report.
2015-04-16 09:22:00 -04:00
fb5c7748da
Fixed #24615 -- ordering by expression not part of SELECT
...
Fixed queries where an expression was used in order_by() but the
expression wasn't in the query's select clause (for example the
expression could be masked by .values() call)
Thanks to Trac alias MattBlack85 for the report.
2015-04-16 09:40:47 +02:00
923da0274a
Fixed #24611 -- Fixed update() crash with related UUID pk object.
2015-04-13 12:18:24 -04:00
dc27f3ee0c
Fixed #19259 -- Added group by selected primary keys support.
2015-03-29 22:03:30 -04:00
8f30556329
Renamed Field.rel attribute to remote_field
...
Field.rel is now deprecated. Rel objects have now also remote_field
attribute. This means that self == self.remote_field.remote_field.
In addition, made the Rel objects a bit more like Field objects. Still,
marked ManyToManyFields as null=True.
2015-03-25 08:16:12 -04:00
d43aa28f67
Removed field.field check in setup_joins()
2015-03-25 08:11:27 -04:00
32d4db66b9
Update converters to take a consistent set of parameters.
...
As suggested by Anssi. This has the slightly strange side effect of
passing the expression to Expression.convert_value has the expression
passed back to it, but it allows more complex patterns of expressions.
2015-02-20 11:35:52 +00:00
0ed7d15563
Sorted imports with isort; refs #23860 .
2015-02-06 08:16:28 -05:00
afe0bb7b13
Fixed #24268 -- removed Query.having
...
Instead of splitting filter clauses to where and having parts before
adding them to query.where or query.having, add all filter clauses to
query.where, and when compiling the query split the where to having and
where parts.
2015-02-04 09:26:40 -05:00
a0b5f15ea5
Fixed #14483 -- Allowed using subqueries with GIS lookups
2015-01-30 20:27:18 +01:00
29c0073335
Fixed #24164 -- Fixed Oracle GIS limited aggregation test failure.
2015-01-30 06:28:47 -05:00
69c6a6868f
Fixed #24174 -- Fixed extra order by descending
2015-01-19 12:51:27 +11:00
65246de7b1
Fixed #24031 -- Added CASE expressions to the ORM.
2015-01-12 18:15:34 -05:00
21b858cb67
Fixed #24060 -- Added OrderBy Expressions
2015-01-13 09:39:55 +11:00
0c7633178f
Fixed #24020 -- Refactored SQL compiler to use expressions
...
Refactored compiler SELECT, GROUP BY and ORDER BY generation.
While there, also refactored select_related() implementation
(get_cached_row() and get_klass_info() are now gone!).
Made get_db_converters() method work on expressions instead of
internal_type. This allows the backend converters to target
specific expressions if need be.
Added query.context, this can be used to set per-query state.
Also changed the signature of database converters. They now accept
context as an argument.
2015-01-08 14:07:54 -05:00
fb48eb0581
Fixed #12663 -- Formalized the Model._meta API for retrieving fields.
...
Thanks to Russell Keith-Magee for mentoring this Google Summer of
Code 2014 project and everyone else who helped with the patch!
2015-01-06 19:25:12 -05:00
3daa9d60be
Fixed #10414 -- Made select_related() fail on invalid field names.
2014-12-24 14:54:30 -05:00
4a2a433e7d
Refs #24020 -- return expressions from get_group_by_cols()
2014-12-18 06:01:07 -07:00
ab89414f40
Fixed #23853 -- Added Join class to replace JoinInfo
...
Also removed Query.join_map. This structure was used to speed up join
reuse calculation. Initial benchmarking shows that this isn't actually
needed. If there are use cases where the removal has real-world
performance implications, it should be relatively straightforward to
reintroduce it as map {alias: [Join-like objects]}.
2014-11-28 07:30:26 -05:00
bd337184f1
Fixed #23877 -- aggregation's subquery missed target col
...
Aggregation over subquery produced syntactically incorrect queries in
some cases as Django didn't ensure that source expressions of the
aggregation were present in the subquery.
2014-11-27 06:50:08 -05:00
c7fd9b242d
Fixed #23875 -- cleaned up query.get_count()
2014-11-27 06:26:53 -05:00
cbb5cdd155
Fixed #23867 -- removed DateQuerySet hacks
...
The .dates() queries were implemented by using custom Query, QuerySet,
and Compiler classes. Instead implement them by using expressions and
database converters APIs.
2014-11-26 17:49:25 -05:00
5c481db295
Fixed #23605 -- Fixed nested subquery regression
...
Added relabeled_clone() method to sql.Query to fix the problem. It
manifested itself in rare cases where at least double nested subquery's
filter condition might target non-existing alias.
Thanks to Trac alias ris for reporting the problem.
2014-11-20 13:38:08 -05:00
d6e2bbe734
Fixed #23876 -- Removed dead code in SQLAggregateCompiler.
2014-11-20 04:18:08 -07:00
08fbbaa45b
Deprecated calling a SQLCompiler instance.
2014-11-18 19:47:16 -07:00
f61256da3a
Renamed qn to compiler
2014-11-16 13:19:34 +01:00
f59fd15c49
Fixed #14030 -- Allowed annotations to accept all expressions
2014-11-15 14:00:43 +00:00
Ran Benita
Nick Pope
Tim Graham
Dražen Odobašić
Mariusz Felisiak
Дилян Палаузов
Nicolas Delaby
Mads Jensen
Sergey Fedoseev
Matthew Wilkes
Anssi Kääriäinen
Florian Apolloner
Anssi Kääriäinen
François Freitag
Jon Dufresne
Simon Charette
Anton Samarchyan
chillaranand
Simon Charette
Claude Paroz
Florian Apolloner
Daniel Hillier
François Freitag
Mikhail Denisenko
Johannes Dollinger
acrefoot
Anssi Kääriäinen
Dmitry Dygalo
Alex Hill
Valentina Mukhamedzhanova
risicle
Jay Wineinger
Marc Tamlyn
Josh Smeaton
Michał Modzelewski
Daniel Pyrathon
Niclas Olofsson
Carl Meyer