| Commit message (Collapse) | Author | Age | Files | Lines |
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Found using: https://github.com/intgr/topy
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mssql to ensure that any literal SQL expression values are
rendered directly as literals, instead of as bound parameters,
within a CREATE INDEX statement. [ticket:2742]
- don't need expression_as_ddl(); literal_binds and include_table
take care of this functionality.
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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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- 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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:class:`.Column` object would not be propagated. Also in 0.8.3, 0.7.11.
[ticket:2784]
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fetched when joining/joinedloading across a many-to-many
relationship to a single-table-inheriting
subclass with a specific discriminator value, due to "secondary"
rows that would come back. The "secondary" and right-side
tables are now inner joined inside of parenthesis for all
ORM joins on many-to-many relationships so that the left->right
join can accurately filtered.
[ticket:2369]
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query.join(), but if
you're dealing with aliased() or with_polymorphic() you need to say "flat=True". Just the one
flag though, "flat" implies "aliased".
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- clean up inspect() calls within query._join()
- make sure join.alias(flat) propagates
- fix almost all assertion tests
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but would
like to improve upon query.statement needing to do this
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step
when we do query.count() are showing
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or not based on fixing nested_join_translation as True or not.
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- went through examples/ and cleaned out excess list() calls
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subclass could insert the row for the "sub" table
before the parent table, if the two tables had no
ForeignKey constraints set up between them.
Also in 0.7.11. [ticket:2689]
- fix a glitch in the assertsql.CompiledSQL fixture regarding
when a multiparam compiledSQL is used within an AllOf
- add a new utility function randomize_unitofwork() which
does the function of --reversetop
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added, which proxies down to the ``.info`` attribute on either
the :class:`.schema.Column` object if directly present, or
the :class:`.MapperProperty` otherwise. The full behavior
is documented and ensured by tests to remain stable.
[ticket:2675]
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could impact some usages of the new :func:`.orm.remote` and
:func:`.orm.local` annotation functions, where annotations
could be lost when the column were used in a subsequent
expression.
[ticket:2660]
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- support annotations on Column where name isn't immediately present
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- rewrite --dropfirst to be more industrial strength, includes views
- fix order_by="foreign_key" to maintain the same ordering as
metadata.sorted_tables. Not ideal that this was the other way throughout
0.7 but this is still a little-used method, in contrast to metadata.sorted_tables.
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__dict__.pop(),
remove reset_memoized
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dogfood and
use the type-based comparator in all cases. will attempt to remove the _adapt_expression()
method entirely as this represents an incomplete and redundant system (though it might
be a lot faster)
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to select() construct, replaces columns inline
using the util.reduce_columns utility function
to remove equivalent columns. reduce_columns()
also adds "with_only_synonyms" to limit the
reduction just to those columns which have the same
name. The deprecated fold_equivalents() feature is
removed [ticket:1729].
- [feature] Added with_labels and
reduce_columns keyword arguments to
Query.subquery(), to provide two alternate
strategies for producing queries with uniquely-
named columns. [ticket:1729].
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plain names. The old names are still defined for
backwards compatibility.
- _BindParamClause renamed to BindParameter
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that an FK dependency between two tables is
not significant during flush if the tables
are related via joined inheritance and the FK
dependency is not part of the inherit_condition,
saves the user a use_alter directive.
[ticket:2527]
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- resolved some serious speed hits I missed, we need to ensure
only deannotated columns are used in the local/remote collections and soforth
so that hash lookups against mapped columns don't dig into __eq__()
- fix some other parity mismatches regarding stuff from [ticket:2453],
including finding another case where _deep_annotate() was doing the wrong thing,
new tests.
- [feature] Major rewrite of relationship()
internals now allow join conditions which
include columns pointing to themselves
within composite foreign keys. A new
API for very specialized primaryjoin conditions
is added, allowing conditions based on
SQL functions, CAST, etc. to be handled
by placing the annotation functions
remote() and foreign() inline within the
expression when necessary. Previous recipes
using the semi-private _local_remote_pairs
approach can be upgraded to this new
approach. [ticket:1401]
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if otherwise can't determine join condition due to no fks
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- got everything working. just need to update
error strings
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tests still failing
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test_eager_relations:CorrelatedSubqueryTest but need some more testing here
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- using new traversal that returns the product of both sides
of a binary, starting to work with (a+b) == (c+d) types of joins.
primaryjoins on functions working
- annotations working, including reversing local/remote when
doing backref
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additional tests in #1401 pass.
would now like to reorganize RelationshipProperty more around the annotations concept.
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mechanics which could lead to incorrect
rendering of SELECT statements with aliases
and joins, particularly when using
column_property(). [ticket:2453]
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"load_on_pending" relationship() flag were used
where a non-"get()" lazy clause needed to be
emitted on a pending object, it would fail
to load.
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construct. Allows an aliased() construct
to link the ORM entity to a selectable that contains
aggregates or other derived forms of a particular
attribute, provided the name is the same as that
of the entity mapped column.
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long lists of bound parameter sets will be
compressed with an informative indicator
of the compression taking place. Exception
messages use the same improved formatting.
[ticket:2243]
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works with ColumnElement as well as works with non-__eq__() suppliers,
works with sets, on Py3K as well.
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recursive descent with clone() + _copy_internals(). This is essentially
what it was doing anyway with lots of unnecessary steps.
Fix Alias() to honor the given clone() function which may have been the
reason the traversal hadn't been fixed sooner. Alias._copy_internals()
will specifically skip an alias of a Table
as a more specific form of what it was doing before. This may need to
be further improved such that ClauseAdapter or replacement_traverse()
send it some specific hints what not to dig into; **kw has been added
to all _copy_internals() to support this. replacement/clone traversal
is at least clear now.
- apply new no_replacement_traverse annotation to join created by
_create_joins(), fixes [ticket:2195]
- can replace orm.query "_halt_adapt" with "no_replacement_traverse"
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as well as when using a "dynamic" relationship
against a parent will generate unique
bindparams, rather than incorrectly repeating
the same bindparam. [ticket:2207].
Also in 0.6.9.
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up if: column_property() against subquery +
joinedload + LIMIT + order by the column
property() occurred. [ticket:2188].
Also in 0.6.9
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conditions such that foreign key errors are
only considered between the two given tables.
That is, t1.join(t2) will report FK errors
that involve 't1' or 't2', but anything
involving 't3' will be skipped. This affects
join(), as well as ORM relationship and
inherit condition logic. Will keep the more conservative
approach to [ticket:2153] in 0.6.
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