Fixed issue where NULL/NOT NULL would not be properly reflected from a
MySQL column that also specified the VIRTUAL or STORED directives. Pull
request courtesy Georg Wicke-Arndt.
Mike Bayer [Thu, 18 Jan 2024 02:15:37 +0000 (21:15 -0500)]
remove loader depth warning, replace with logging message
Replaced the "loader depth is excessively deep" warning with a shorter
message added to the caching badge within SQL logging, for those statements
where the ORM disabled the cache due to a too-deep chain of loader options.
The condition which this warning highlights is difficult to resolve and is
generally just a limitation in the ORM's application of SQL caching. A
future feature may include the ability to tune the threshold where caching
is disabled, but for now the warning will no longer be a nuisance.
Federico Caselli [Fri, 12 Jan 2024 18:17:30 +0000 (19:17 +0100)]
Oracle default arraysize is now set by the driver
Changed the default arraysize of the Oracle dialects so that the value set
by the driver is used, that is 100 at the time of writing for both
cx_oracle and oracledb. Previously the value was set to 50 by default.
Priyanshu Parikh [Sun, 15 Oct 2023 14:34:25 +0000 (10:34 -0400)]
allow callable for relationship.back_populates
The :paramref:`_orm.relationship.back_populates` argument to
:func:`_orm.relationship` may now be passed as a Python callable, which
resolves to either the direct linked ORM attribute, or a string value as
before. ORM attributes are also accepted directly by
:paramref:`_orm.relationship.back_populates`. This change allows type
checkers and IDEs to confirm the argument for
:paramref:`_orm.relationship.back_populates` is valid. Thanks to Priyanshu
Parikh for the help on suggesting and helping to implement this feature.
An attempt was made to do this for ForeignKey as well, however this
is not feasible since there is no "deferred configuration" step
for Table objects; Table objects set each other up on ForeignKey
as they are created, such as setting the type of a column
in a referencing Column when the referenced table is created. We
have no way to know which Table a foreign key intends to represent
when it's a callable whereas when it's a string, we do know, and
we actually make a lot of use of that string to match it to the
target table as that target is created (see _fk_memos). However
the commit keeps a little bit of the cleanup to ForeignKey intact.
Gord Thompson [Sun, 14 Jan 2024 16:49:11 +0000 (09:49 -0700)]
use ensure_closed() for async close, close() for terminate
Fixed issue in asyncio dialects asyncmy and aiomysql, where their
``.close()`` method is apparently not a graceful close. replace with
non-standard ``.ensure_closed()`` method that's awaitable and move
``.close()`` to the so-called "terminate" case.
Martijn Pieters [Tue, 16 Jan 2024 12:03:09 +0000 (07:03 -0500)]
Correct type hint for FunctionElement.table_valued()
### Description
The documentation and the type annotations for `TableValueType()` clearly
state that both strings and column expression arguments are accepted
but the annotation omits `str`, which is the most common use case.
### Checklist
This pull request is:
- [x] A documentation / typographical / small typing error fix
- Good to go, no issue or tests are needed
- [ ] A short code fix
- please include the issue number, and create an issue if none exists, which
must include a complete example of the issue. one line code fixes without an
issue and demonstration will not be accepted.
- Please include: `Fixes: #<issue number>` in the commit message
- please include tests. one line code fixes without tests will not be accepted.
- [ ] A new feature implementation
- please include the issue number, and create an issue if none exists, which must
include a complete example of how the feature would look.
- Please include: `Fixes: #<issue number>` in the commit message
- please include tests.
David Evans [Mon, 15 Jan 2024 15:13:53 +0000 (10:13 -0500)]
Fix type of CASE expressions which include NULLs
Fixed issues in :func:`_sql.case` where the logic for determining the
type of the expression could result in :class:`.NullType` if the last
element in the "whens" had no type, or in other cases where the type
could resolve to ``None``. The logic has been updated to scan all
given expressions so that the first non-null type is used, as well as
to always ensure a type is present. Pull request courtesy David Evans.
updates to test suite to use modern fixture patterns by Mike
Mike Bayer [Fri, 12 Jan 2024 14:29:28 +0000 (09:29 -0500)]
add Identity() for remaining examples
Fixed the performance example scripts in examples/performance to mostly
work with the Oracle database, by adding the :class:`.Identity` construct
to all the tables and allowing primary generation to occur on this backend.
A few of the "raw DBAPI" cases still are not compatible with Oracle.
Support reflecting no inherit check constraint in pg.
Added support for reflection of PostgreSQL CHECK constraints marked with
"NO INHERIT", setting the key ``no_inherit=True`` in the reflected data.
Pull request courtesy Ellis Valentiner.
Mike Bayer [Thu, 11 Jan 2024 03:31:59 +0000 (22:31 -0500)]
catch OSError (base of ConnectionError) and asyncpg errors for terminate
Fixed regression in the asyncpg dialect caused by :ticket:`10717` in
release 2.0.24 where the change that now attempts to gracefully close the
asyncpg connection before terminating would not fall back to
``terminate()`` for other potential connection-related exceptions other
than a timeout error, not taking into account cases where the graceful
``.close()`` attempt fails for other reasons such as connection errors.
Mike Bayer [Mon, 8 Jan 2024 14:15:17 +0000 (09:15 -0500)]
DBAPIConnection can be None for checkin event
Fixed the type signature for the :meth:`.PoolEvents.checkin` event to
indicate that the given :class:`.DBAPIConnection` argument may be ``None``
in the case where the connection has been invalidated.
Mike Bayer [Tue, 2 Jan 2024 16:16:13 +0000 (11:16 -0500)]
refactor any_ / all_
Improved compilation of :func:`_sql.any_` / :func:`_sql.all_` in the
context of a negation of boolean comparison, will now render ``NOT (expr)``
rather than reversing the equality operator to not equals, allowing
finer-grained control of negations for these non-typical operators.
Federico Caselli [Thu, 21 Dec 2023 22:41:56 +0000 (23:41 +0100)]
Add oracledb_async driver support
Added support for :ref:`oracledb` in async mode.
The current implementation has some limitation, preventing
the support for :meth:`_asyncio.AsyncConnection.stream`.
Improved support if planned for the 2.1 release of SQLAlchemy.
Mike Bayer [Tue, 2 Jan 2024 16:36:20 +0000 (11:36 -0500)]
force uselist=False for all collection class not present
Fixed issue where ORM Annotated Declarative would mis-interpret the left
hand side of a relationship without any collection specified as
uselist=True if the left type were given as a class and not a string,
without using future-style annotations.
jonathan vanasco [Fri, 24 Sep 2021 21:48:09 +0000 (17:48 -0400)]
add new notes on viewonly section
Updated join_conditions documentation to explain the limits of mutation
tracking on advanced relationships and illustrate potential ways to
remedy the situation.
Instead of simply writing a note, the (functional) code from the original
issue was turned into a tutorial that explains the various approaches.
Mike Bayer [Mon, 1 Jan 2024 21:54:58 +0000 (16:54 -0500)]
ensure correct lock type propagated in pool recreate
Fixed critical issue in asyncio version of the connection pool where
calling :meth:`_asyncio.AsyncEngine.dispose` would produce a new connection
pool that did not fully re-establish the use of asyncio-compatible mutexes,
leading to the use of a plain ``threading.Lock()`` which would then cause
deadlocks in an asyncio context when using concurrency features like
``asyncio.gather()``.
Mike Bayer [Mon, 1 Jan 2024 17:49:10 +0000 (12:49 -0500)]
add a generic argument to _HasClauseElement
Further enhancements to pep-484 typing to allow SQL functions from
:attr:`_sql.func` derived elements to work more effectively with ORM-mapped
attributes.
Mike Bayer [Thu, 28 Dec 2023 21:02:48 +0000 (16:02 -0500)]
pop prefetch values from committed_state when they are available
Fixed issue where when making use of the
:paramref:`_orm.relationship.post_update` feature at the same time as using
a mapper version_id_col could lead to a situation where the second UPDATE
statement emitted by the post-update feature would fail to make use of the
correct version identifier, assuming an UPDATE was already emitted in that
flush which had already bumped the version counter.
Yilei Yang [Thu, 21 Dec 2023 07:47:03 +0000 (02:47 -0500)]
Use a copy of `self.contents` in this list comprehension.
Improved a fix first implemented for :ticket:`3208` released in version
0.9.8, where the registry of classes used internally by declarative could
be subject to a race condition in the case where individual mapped classes
are being garbage collected at the same time while new mapped classes are
being constructed, as can happen in some test suite configurations or
dynamic class creation environments. In addition to the weakref check
already added, the list of items being iterated is also copied first to
avoid "list changed while iterating" errors. Pull request courtesy Yilei
Yang.
Removed the async_fallback mode and await_fallback function.
Replace get_event_loop with Runner.
Removed the internal function ``await_fallback()``.
Renamed the internal function ``await_only()`` to ``await_()``.
Mike Bayer [Wed, 20 Dec 2023 15:56:18 +0000 (10:56 -0500)]
use a standard function to check for iterable collections
Fixed 2.0 regression in :class:`.MutableList` where a routine that detects
sequences would not correctly filter out string or bytes instances, making
it impossible to assign a string value to a specific index (while
non-sequence values would work fine).
Mike Bayer [Tue, 19 Dec 2023 14:00:03 +0000 (09:00 -0500)]
ensure Bundle / DML RETURNING has test support, full impl
Ensured the use case of :class:`.Bundle` objects used in the
``returning()`` portion of ORM-enabled INSERT, UPDATE and DELETE statements
is tested and works fully. This was never explicitly implemented or
tested previously and did not work correctly in the 1.4 series; in the 2.0
series, ORM UPDATE/DELETE with WHERE criteria was missing an implementation
method preventing :class:`.Bundle` objects from working.
Mike Bayer [Tue, 12 Dec 2023 19:57:38 +0000 (14:57 -0500)]
copy stack related elements to str compiler
Fixed issue in stringify for SQL elements, where a specific dialect is not
passed, where a dialect-specific element such as the PostgreSQL "on
conflict do update" construct is encountered and then fails to provide for
a stringify dialect with the appropriate state to render the construct,
leading to internal errors.
Fixed issue where stringifying or compiling a :class:`.CTE` that was
against a DML construct such as an :func:`_sql.insert` construct would fail
to stringify, due to a mis-detection that the statement overall is an
INSERT, leading to internal errors.
Mike Bayer [Mon, 11 Dec 2023 15:55:25 +0000 (10:55 -0500)]
raise ImportError when greenlet not installed
This is the runtime raise when an async concurrency function
is called. in 2.0 this raises ValueError, however here we've
standardized on raising ``ImportError`.
continuing for #10747, add a test asserting we dont get an
endless loop and get a clean ImportError instead when greenlet not
installed and async functions are used.
Mike Bayer [Sat, 9 Dec 2023 15:43:37 +0000 (10:43 -0500)]
ensure test suite runs w/o greenlet
This is a reopen of #6136 essentially that repaired the
test suite to run without greenlet but now this has regressed.
add a tox target that explicitly uninstalls greenlet, will
add to CI.
This also changes 2.0 in that the full tox target will
omit dbdrivers that require greenlet.
Mike Bayer [Wed, 6 Dec 2023 19:10:28 +0000 (14:10 -0500)]
Replace custom URL-encoding method with quote
Fixed URL-encoding of the username and password components of
:class:`.engine.URL` objects when converting them to string using the
:meth:`_engine.URL.render_as_string` method, by using Python standard
library ``urllib.parse.quote`` while allowing for plus signs and spaces to
remain unchanged as supported by SQLAlchemy's non-standard URL parsing,
rather than the legacy home-grown routine from many years ago. Pull request
courtesy of Xavier NUNN.
Michael Oliver [Tue, 5 Dec 2023 22:24:17 +0000 (17:24 -0500)]
Forward `**kw` in `__init_subclass__()` to super
Modified the ``__init_subclass__()`` method used by
:class:`_orm.MappedAsDataclass`, :class:`_orm.DeclarativeBase`` and
:class:`_orm.DeclarativeBaseNoMeta` to accept arbitrary ``**kw`` and to
propagate them to the ``super()`` call, allowing greater flexibility in
arranging custom superclasses and mixins which make use of
``__init_subclass__()`` keyword arguments. Pull request courtesy Michael
Oliver.
eXenon [Mon, 4 Dec 2023 17:39:25 +0000 (12:39 -0500)]
Replace custom URL-encoding method with quote_plus
Fixed URL-encoding of the username and password components of
:class:`.engine.URL` objects when converting them to string using the
:meth:`_engine.URL.render_as_string` method, by using Python standard
library ``urllib.parse.quote_plus``, rather than the legacy home-grown
routine from many years ago. Pull request courtesy of Xavier NUNN.
> A [`datetime`](https://docs.python.org/3/library/datetime.html#datetime.datetime) object `d` is aware if both of the following hold:
>
> `d.tzinfo is not None`
>
> `d.tzinfo.utcoffset(d)` does not return `None`
>
> Otherwise, `d` is naive.
Federico Caselli [Thu, 30 Nov 2023 21:45:36 +0000 (22:45 +0100)]
Remove legacy signatures from session events
Removed legacy signatures dating back to 0.9 release from the
:meth:`_orm.SessionEvents.after_bulk_update` and
:meth:`_orm.SessionEvents.after_bulk_delete`.
Mike Bayer [Thu, 30 Nov 2023 14:11:25 +0000 (09:11 -0500)]
try to gracefully close even in terminate
Adjusted the asyncpg dialect such that when the ``terminate()`` method is
used to discard an invalidated connection, the dialect will first attempt
to gracefully close the conneciton using ``.close()`` with a timeout, if
the operation is proceeding within an async event loop context only. This
allows the asyncpg driver to attend to finalizing a ``TimeoutError``
including being able to close a long-running query server side, which
otherwise can keep running after the program has exited.
Federico Caselli [Wed, 16 Aug 2023 20:18:10 +0000 (22:18 +0200)]
Change Sequence and Identity oracle only kwargs.
Deprecate Oracle only parameters :paramref:`_schema.Sequence.order`,
paramref:`_schema.Identity.order` and :paramref:`_schema.Identity.on_null`.
They should be configured using the dialect kwargs ``oracle_order`` and
oracle_on_null``.
projects / thirdparty / sqlalchemy / sqlalchemy.git / log
