| Commit message (Collapse) | Author | Age | Files | Lines |
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exposes it
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typically via in-place mutation, will raise an informative error
message rather than causing a recursion overflow.
[ticket:2815]
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:func:`.foreign` on a :class:`.Column` before association with a parent
:class:`.Table` could produce issues related to the parent table not
rendering within joins, due to the inherent copy operation performed
by an annotation. [ticket:2813]
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entity returns without otherwise changing much [ticket:2824]
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well. this probably has some bugs
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- The system of loader options has been entirely rearchitected to build
upon a much more comprehensive base, the :class:`.Load` object. This
base allows any common loader option like :func:`.joinedload`,
:func:`.defer`, etc. to be used in a "chained" style for the purpose
of specifying options down a path, such as ``joinedload("foo").subqueryload("bar")``.
The new system supersedes the usage of dot-separated path names,
multiple attributes within options, and the usage of ``_all()`` options.
- Added a new load option :func:`.orm.load_only`. This allows a series
of column names to be specified as loading "only" those attributes,
deferring the rest.
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name is already an instance of _anonymous_label(), we don't downgrade
it to a plain quoted_name - fixes regression from [ticket:2812].
[ticket:2834]
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of groups of column expressions to a :class:`.Query` construct.
The group of columns are returned as a single tuple by default. The
behavior of :class:`.Bundle` can be overridden however to provide
any sort of result processing to the returned row. One example included
is :attr:`.Composite.Comparator.bundle`, which applies a bundled form
of a "composite" mapped attribute.
[ticket:2824]
- The :func:`.composite` construct now maintains the return object
when used in a column-oriented :class:`.Query`, rather than expanding
out into individual columns. This makes use of the new :class:`.Bundle`
feature internally. This behavior is backwards incompatible; to
select from a composite column which will expand out, use
``MyClass.some_composite.clauses``.
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into account the id() of the function itself and self, [ticket:2832]
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- use match with a .* preceding instead of search
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Hide password in URL and Engine __repr__
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Fixes #2821
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version id programmatically outside of the generator. using this system,
we can also leave the version id alone.
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filters applied.
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in-python only cols
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of the incoming :class:`.Column` would prevent primary key constraints,
indexes, and foreign key constraints from being correctly reflected.
Also in 0.8.3. [ticket:2811]
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- callcount
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quoting the lowercase name.
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--write-profiles is set
- some sqlite callcounts
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- cx_oracle dialect doesn't use normal col names, lets just not rely on that for now
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instead of relying upon various ``quote=True`` flags being passed around,
these flags are converted into rich string objects with quoting information
included at the point at which they are passed to common schema constructs
like :class:`.Table`, :class:`.Column`, etc. This solves the issue
of various methods that don't correctly honor the "quote" flag such
as :meth:`.Engine.has_table` and related methods. The :class:`.quoted_name`
object is a string subclass that can also be used explicitly if needed;
the object will hold onto the quoting preferences passed and will
also bypass the "name normalization" performed by dialects that
standardize on uppercase symbols, such as Oracle, Firebird and DB2.
The upshot is that the "uppercase" backends can now work with force-quoted
names, such as lowercase-quoted names and new reserved words.
[ticket:2812]
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unittest.TestCase
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- modernize test for that
- use py3k compatible next() in test_returning/test_versioning
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to rely upon server generated version identifiers, using triggers
or other database-provided versioning features, by passing the value
``False``. The ORM will use RETURNING when available to immediately
load the new version identifier, else it will emit a second SELECT.
[ticket:2793]
- The ``eager_defaults`` flag of :class:`.Mapper` will now allow the
newly generated default values to be fetched using an inline
RETURNING clause, rather than a second SELECT statement, for backends
that support RETURNING.
- Added a new variant to :meth:`.ValuesBase.returning` called
:meth:`.ValuesBase.return_defaults`; this allows arbitrary columns
to be added to the RETURNING clause of the statement without interfering
with the compilers usual "implicit returning" feature, which is used to
efficiently fetch newly generated primary key values. For supporting
backends, a dictionary of all fetched values is present at
:attr:`.ResultProxy.returned_defaults`.
- add a glossary entry for RETURNING
- add documentation for version id generation, [ticket:867]
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Conflicts:
lib/sqlalchemy/schema.py
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with CreateColumn rules
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compilation rule which allows skipping of columns, by producing
a rule that returns ``None``. Also in 0.8.3.
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setslice of ``[0:0]`` correctly, which in particular could occur
when using ``insert(0, item)`` with the association proxy. Due
to some quirk in Python collections, the issue was much more likely
with Python 3 rather than 2. Also in 0.8.3, 0.7.11.
[ticket:2807]
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- fix and test weakref cleanout for WeakSequence, [ticket:2794]
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not be properly quoted if it was referred to in multiple FROM clauses.
Also in 0.8.3, 0.7.11. [ticket:2801]
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access
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courtesy Hajime Nakagami.
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- rework the event system so that event modules load after their
targets, dependencies are reversed
- create an improved strategy lookup system for the ORM
- rework the ORM to have very few import cycles
- move out "importlater" to just util.dependency
- other tricks to cross-populate modules in as clear a way as possible
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the import structure of many core modules.
``sqlalchemy.schema`` and ``sqlalchemy.types``
remain in the top-level package, but are now just lists of names
that pull from within ``sqlalchemy.sql``. Their implementations
are now broken out among ``sqlalchemy.sql.type_api``, ``sqlalchemy.sql.sqltypes``,
``sqlalchemy.sql.schema`` and ``sqlalchemy.sql.ddl``, the last of which was
moved from ``sqlalchemy.engine``. ``sqlalchemy.sql.expression`` is also
a namespace now which pulls implementations mostly from ``sqlalchemy.sql.elements``,
``sqlalchemy.sql.selectable``, and ``sqlalchemy.sql.dml``.
Most of the "factory" functions
used to create SQL expression objects have been moved to classmethods
or constructors, which are exposed in ``sqlalchemy.sql.expression``
using a programmatic system. Care has been taken such that all the
original import namespaces remain intact and there should be no impact
on any existing applications. The rationale here was to break out these
very large modules into smaller ones, provide more manageable lists
of function names, to greatly reduce "import cycles" and clarify the
up-front importing of names, and to remove the need for redundant
functions and documentation throughout the expression package.
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produces the negation of the expression "IN" returns
when used against an empty collection. Also in 0.8.3.
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