Version: 1.2.14-4.23
* Mon Nov 12 2018 arun@gmx.de
- update to version 1.2.14:
* orm
+ [orm] [bug] Fixed bug in Session.bulk_update_mappings() where
alternate mapped attribute names would result in the primary key
column of the UPDATE statement being included in the SET clause,
as well as the WHERE clause; while usually harmless, for SQL
Server this can raise an error due to the IDENTITY column. This
is a continuation of the same bug that was fixed in #3849, where
testing was insufficient to catch this additional flaw.
References: #4357
+ [orm] [bug] Fixed a minor performance issue which could in some
cases add unnecessary overhead to result fetching, involving the
use of ORM columns and entities that include those same columns
at the same time within a query. The issue has to do with hash /
eq overhead when referring to the column in different ways.
References: #4347
* mysql
+ [mysql] [bug] Fixed regression caused by #4344 released in
1.2.13, where the fix for MySQL 8.0?s case sensitivity problem
with referenced column names when reflecting foreign key
referents is worked around using the information_schema.columns
view. The workaround was failing on OSX /
lower_case_table_names=2 which produces non-matching casing for
the information_schema.columns vs. that of SHOW CREATE TABLE, so
in case-insensitive SQL modes case-insensitive matching is now
used. References: #4361
* Thu Nov 01 2018 arun@gmx.de
- update to version 1.2.13:
* orm
+ [orm] [bug] Fixed bug where ?dynamic? loader needs to explicitly
set the ?secondary? table in the FROM clause of the query, to
suit the case where the secondary is a join object that is
otherwise not pulled into the query from its columns alone.
References: #4349
* orm declarative
+ [bug] [declarative] [orm] Fixed regression caused by #4326 in
version 1.2.12 where using declared_attr with a mixin in
conjunction with orm.synonym() would fail to map the synonym
properly to an inherited subclass. References: #4350
+ [bug] [declarative] [orm] The column conflict resolution
technique discussed at Resolving Column Conflicts is now
functional for a Column that is also a primary key
column. Previously, a check for primary key columns declared on
a single-inheritance subclass would occur before the column copy
were allowed to pass. References: #4352
* sql
+ [sql] [feature] Refactored SQLCompiler to expose a
SQLCompiler.group_by_clause() method similar to the
SQLCompiler.order_by_clause() and SQLCompiler.limit_clause()
methods, which can be overridden by dialects to customize how
GROUP BY renders. Pull request courtesy Samuel Chou.
+ [sql] [bug] Fixed bug where the Enum.create_constraint flag on
the Enum datatype would not be propagated to copies of the type,
which affects use cases such as declarative mixins and abstract
bases. References: #4341
* postgresql
+ [postgresql] [bug] Added support for the aggregate_order_by
function to receive multiple ORDER BY elements, previously only
a single element was accepted. References: #4337
* mysql
+ [mysql] [bug] Added word function to the list of reserved words
for MySQL, which is now a keyword in MySQL 8.0 References: #4348
+ [mysql] [bug] Added a workaround for a MySQL bug #88718
introduced in the 8.0 series, where the reflection of a foreign
key constraint is not reporting the correct case sensitivity for
the referred column, leading to errors during use of the
reflected constraint such as when using the automap
extension. The workaround emits an additional query to the
information_schema tables in order to retrieve the correct case
sensitive name. References: #4344
* misc
+ [misc] [bug] Fixed issue where part of the utility language
helper internals was passing the wrong kind of argument to the
Python __import__ builtin as the list of modules to be
imported. The issue produced no symptoms within the core library
but could cause issues with external applications that redefine
the __import__ builtin or otherwise instrument it. Pull request
courtesy Joe Urciuoli.
+ [misc] [bug] [py3k] Fixed additional warnings generated by
Python 3.7 due to changes in the organization of the Python
collections and collections.abc packages. Previous collections
warnings were fixed in version 1.2.11. Pull request courtesy
xtreak. References: #4339
+ [bug] [ext] Added missing .index() method to list-based
association collections in the association proxy extension.
* Sat Sep 22 2018 arun@gmx.de
- update to version 1.2.12:
* orm
+ [orm] [bug] Added a check within the weakref cleanup for the
InstanceState object to check for the presence of the dict
builtin, in an effort to reduce error messages generated when
these cleanups occur during interpreter shutdown. Pull request
courtesy Romuald Brunet.
+ [orm] [bug] Fixed bug where use of Lateral construct in
conjunction with Query.join() as well as
Query.select_entity_from() would not apply clause adaption to
the right side of the join. ?lateral? introduces the use case of
the right side of a join being correlatable. Previously,
adaptation of this clause wasn?t considered. Note that in 1.2
only, a selectable introduced by Query.subquery() is still not
adapted due to #4304; the selectable needs to be produced by the
select() function to be the right side of the ?lateral? join.
References: #4334
+ [orm] [bug] Fixed 1.2 regression caused by #3472 where the
handling of an ?updated_at? style column within the context of a
post-update operation would also occur for a row that is to be
deleted following the update, meaning both that a column with a
Python-side value generator would show the now-deleted value
that was emitted for the UPDATE before the DELETE (which was not
the previous behavor), as well as that a SQL- emitted value
generator would have the attribute expired, meaning the previous
value would be unreachable due to the row having been deleted
and the object detached from the session.The ?postfetch? logic
that was added as part of #3472 is now skipped entirely for an
object that ultimately is to be deleted. References: #4327
* orm declarative
+ [bug] [declarative] [orm] Fixed bug where the declarative scan
for attributes would receive the expression proxy delivered by a
hybrid attribute at the class level, and not the hybrid
attribute itself, when receiving the descriptor via the
@declared_attr callable on a subclass of an already-mapped
class. This would lead to an attribute that did not report
itself as a hybrid when viewed within
Mapper.all_orm_descriptors. References: #4326
* postgresql
+ [postgresql] [bug] Fixed bug in PostgreSQL dialect where
compiler keyword arguments such as literal_binds=True were not
being propagated to a DISTINCT ON expression. References: #4325
+ [postgresql] [bug] Fixed the postgresql.array_agg() function,
which is a slightly altered version of the usual
functions.array_agg() function, to also accept an incoming
?type? argument without forcing an ARRAY around it, essentially
the same thing that was fixed for the generic function in 1.1 in
[#4107]. References: #4324
+ [postgresql] [bug] Fixed bug in PostgreSQL ENUM reflection where
a case-sensitive, quoted name would be reported by the query
including quotes, which would not match a target column during
table reflection as the quotes needed to be stripped off.
References: #4323
* oracle
+ [oracle] [bug] Fixed issue for cx_Oracle 7.0 where the behavior
of Oracle param.getvalue() now returns a list, rather than a
single scalar value, breaking autoincrement logic throughout the
Core and ORM. The dml_ret_array_val compatibility flag is used
for cx_Oracle 6.3 and 6.4 to establish compatible behavior with
7.0 and forward, for cx_Oracle 6.2.1 and prior a version number
check falls back to the old logic. References: #4335
* misc
+ [bug] [ext] Fixed issue where BakedQuery did not include the
specific query class used by the Session as part of the cache
key, leading to incompatibilities when using custom query
classes, in particular the ShardedQuery which has some different
argument signatures. References: #4328
* Sat Aug 25 2018 arun@gmx.de
- update to version 1.2.11:
* orm declarative
+ [bug] [declarative] [orm] Fixed issue in previously untested use
case, allowing a declarative mapped class to inherit from a
classically-mapped class outside of the declarative base,
including that it accommodates for unmapped intermediate
classes. An unmapped intermediate class may specify
__abstract__, which is now interpreted correctly, or the
intermediate class can remain unmarked, and the classically
mapped base class will be detected within the hierarchy
regardless. In order to anticipate existing scenarios which may
be mixing in classical mappings into existing declarative
hierarchies, an error is now raised if multiple mapped bases are
detected for a given class. References: #4321
* sql
+ [sql] [bug] Fixed issue that is closely related to #3639 where
an expression rendered in a boolean context on a non-native
boolean backend would be compared to 1/0 even though it is
already an implcitly boolean expression, when
ColumnElement.self_group() were used. While this does not affect
the user-friendly backends (MySQL, SQLite) it was not handled by
Oracle (and possibly SQL Server). Whether or not the expression
is implicitly boolean on any database is now determined up front
as an additional check to not generate the integer comparison
within the compliation of the statement. References: #4320
+ [sql] [bug] Added missing window function parameters
WithinGroup.over.range_ and WithinGroup.over.rows parameters to
the WithinGroup.over() and FunctionFilter.over() methods, to
correspond to the range/rows feature added to the ?over? method
of SQL functions as part of #3049 in version 1.1. References:
[#4322]
+ [sql] [bug] Fixed bug where the multi-table support for UPDATE
and DELETE statements did not consider the additional FROM
elements as targets for correlation, when a correlated SELECT
were also combined with the statement. This change now includes
that a SELECT statement in the WHERE clause for such a statement
will try to auto-correlate back to these additional tables in
the parent UPDATE/DELETE or unconditionally correlate if
Select.correlate() is used. Note that auto-correlation raises an
error if the SELECT statement would have no FROM clauses as a
result, which can now occur if the parent UPDATE/DELETE
specifies the same tables in its additional set of tables;
specify Select.correlate() explicitly to resolve. References:
[#4313]
* oracle
+ [oracle] [bug] For cx_Oracle, Integer datatypes will now be
bound to ?int?, per advice from the cx_Oracle
developers. Previously, using cx_Oracle.NUMBER caused a loss in
precision within the cx_Oracle 6.x series. References: #4309
* misc
+ [bug] [py3k] Started importing ?collections? from
?collections.abc? under Python 3.3 and greater for Python 3.8
compatibility. Pull request courtesy Nathaniel Knight.
+ Fixed issue where the ?schema? name used for a SQLite database
within table reflection would not quote the schema name
correctly. Pull request courtesy Phillip Cloud.
* Sat Jul 14 2018 arun@gmx.de
- update to version 1.2.10:
* orm
+ [orm] [bug] Fixed bug in Bundle construct where placing two
columns of the same name would be de-duplicated, when the Bundle
were used as part of the rendered SQL, such as in the ORDER BY
or GROUP BY of the statement. References: #4295
+ [orm] [bug] Fixed regression in 1.2.9 due to #4287 where using a
Load option in conjunction with a string wildcard would result
in a TypeError. References: #4298
* sql
+ [sql] [bug] Fixed bug where a Sequence would be dropped
explicitly before any Table that refers to it, which breaks in
the case when the sequence is also involved in a server-side
default for that table, when using MetaData.drop_all(). The step
which processes sequences to be dropped via non server-side
column default functions is now invoked after the table itself
is dropped. References: #4300
* Sun Jul 01 2018 arun@gmx.de
- removed patch fix_test_reflection.patch (included upstream)
- update to version 1.2.9:
* orm
+ [orm] [bug] Fixed issue where chaining multiple join elements
inside of Query.join() might not correctly adapt to the previous
left-hand side, when chaining joined inheritance classes that
share the same base class.
References: #3505
+ [orm] [bug] Fixed bug in cache key generation for baked queries
which could cause a too-short cache key to be generated for the
case of eager loads across subclasses. This could in turn cause
the eagerload query to be cached in place of a non-eagerload
query, or vice versa, for a polymorhic ?selectin? load, or
possibly for lazy loads or selectin loads as well.
References: #4287
+ [orm] [bug] Fixed bug in new polymorphic selectin loading where
the BakedQuery used internally would be mutated by the given
loader options, which would both inappropriately mutate the
subclass query as well as carry over the effect to subsequent
queries.
References: #4286
+ [orm] [bug] Fixed regression caused by #4256 (itself a
regression fix for #4228) which breaks an undocumented behavior
which converted for a non-sequence of entities passed directly
to the Query constructor into a single-element sequence. While
this behavior was never supported or documented, it?s already in
use so has been added as a behavioral contract to Query.
References: #4269
+ [orm] [bug] Fixed an issue that was both a performance
regression in 1.2 as well as an incorrect result regarding the
?baked? lazy loader, involving the generation of cache keys from
the original Query object?s loader options. If the loader
options were built up in a ?branched? style using common base
elements for multiple options, the same options would be
rendered into the cache key repeatedly, causing both a
performance issue as well as generating the wrong cache
key. This is fixed, along with a performance improvement when
such ?branched? options are applied via Query.options() to
prevent the same option objects from being applied repeatedly.
References: #4270
* sql
+ [sql] [bug] Fixed regression in 1.2 due to #4147 where a Table
that has had some of its indexed columns redefined with new
ones, as would occur when overriding columns during reflection
or when using Table.extend_existing, such that the
Table.tometadata() method would fail when attempting to copy
those indexes as they still referred to the replaced column. The
copy logic now accommodates for this condition.
References: #4279
* mysql
+ [mysql] [bug] Fixed percent-sign doubling in
mysql-connector-python dialect, which does not require
de-doubling of percent signs. Additionally, the mysql-
connector-python driver is inconsistent in how it passes the
column names in cursor.description, so a workaround decoder has
been added to conditionally decode these
randomly-sometimes-bytes values to unicode only if needed. Also
improved test support for mysql-connector-python, however it
should be noted that this driver still has issues with unicode
that continue to be unresolved as of yet.
+ [mysql] [bug] Fixed bug in index reflection where on MySQL 8.0
an index that includes ASC or DESC in an indexed column
specfication would not be correctly reflected, as MySQL 8.0
introduces support for returning this information in a table
definition string.
References: #4293
+ [mysql] [bug] Fixed bug in MySQLdb dialect and variants such as
PyMySQL where an additional ?unicode returns? check upon
connection makes explicit use of the ?utf8? character set, which
in MySQL 8.0 emits a warning that utf8mb4 should be used. This
is now replaced with a utf8mb4 equivalent. Documentation is also
updated for the MySQL dialect to specify utf8mb4 in all
examples. Additional changes have been made to the test suite to
use utf8mb3 charsets and databases (there seem to be collation
issues in some edge cases with utf8mb4), and to support
configuration default changes made in MySQL 8.0 such as
explicit_defaults_for_timestamp as well as new errors raised for
invalid MyISAM indexes.
References: #4283
+ [mysql] [bug] The Update construct now accommodates a Join
object as supported by MySQL for UPDATE..FROM. As the construct
already accepted an alias object for a similar purpose, the
feature of UPDATE against a non-table was already implied so
this has been added.
References: #3645
* sqlite
+ [sqlite] [bug] Fixed issue in test suite where SQLite 3.24 added
a new reserved word that conflicted with a usage in
TypeReflectionTest. Pull request courtesy Nils Philippsen.
* mssql
+ [mssql] [bug] Fixed bug in MSSQL reflection where when two
same-named tables in different schemas had same-named primary
key constraints, foreign key constraints referring to one of the
tables would have their columns doubled, causing errors. Pull
request courtesy Sean Dunn.
References: #4228
+ [mssql] [bug] [py3k] Fixed issue within the SQL Server dialect
under Python 3 where when running against a non-standard SQL
server database that does not contain either the
?sys.dm_exec_sessions? or ?sys.dm_pdw_nodes_exec_sessions?
views, leading to a failure to fetch the isolation level, the
error raise would fail due to an UnboundLocalError.
References: #4273
* oracle
+ [oracle] [feature] Added a new event currently used only by the
cx_Oracle dialect, DialectEvents.setiputsizes(). The event
passes a dictionary of BindParameter objects to DBAPI-specific
type objects that will be passed, after conversion to parameter
names, to the cx_Oracle cursor.setinputsizes() method. This
allows both visibility into the setinputsizes process as well as
the ability to alter the behavior of what datatypes are passed
to this method.
See als Fine grained control over cx_Oracle data binding and performance with setinputsizes
References: #4290
+ [oracle] [bug] [mysql] Fixed INSERT FROM SELECT with CTEs for
the Oracle and MySQL dialects, where the CTE was being placed
above the entire statement as is typical with other databases,
however Oracle and MariaDB 10.2 wants the CTE underneath the
?INSERT? segment. Note that the Oracle and MySQL dialects don?t
yet work when a CTE is applied to a subquery inside of an UPDATE
or DELETE statement, as the CTE is still applied to the top
rather than inside the subquery.
References: #4275
* misc
+ [feature] [ext] Added new attribute Query.lazy_loaded_from which
is populated with an InstanceState that is using this Query in
order to lazy load a relationship. The rationale for this is
that it serves as a hint for the horizontal sharding feature to
use, such that the identity token of the state can be used as
the default identity token to use for the query within
id_chooser().
References: #4243
+ [bug] [py3k] Replaced the usage of inspect.formatargspec() with
a vendored version copied from the Python standard library, as
inspect.formatargspec() is deprecated and as of Python 3.7.0 is
emitting a warning.
References: #4291
* Tue Jun 26 2018 mimi.vx@gmail.com
- add upstream fix_test_reflection.patch to fix tests with new sqlite
* Thu Jun 21 2018 hpj@urpla.net
- update to version 1.2.8:
* orm
+ [orm] [bug] Fixed regression in 1.2.7 caused by #4228, which
itself was fixing a 1.2-level regression, where the query_cls
callable passed to a Session was assumed to be a subclass of
Query with class method availability, as opposed to an
arbitrary callable. In particular, the dogpile caching example
illustrates query_cls as a function and not a Query subclass.
References: #4256
+ [orm] [bug] Fixed a long-standing regression that occurred in
version 1.0, which prevented the use of a custom MapperOption
that alters the _params of a Query object for a lazy load,
since the lazy loader itself would overwrite those parameters.
This applies to the ?temporal range? example on the wiki. Note
however that the Query.populate_existing() method is now
required in order to rewrite the mapper options associated with
an object already loaded in the identity map.
As part of this change, a custom defined MapperOption will now
cause lazy loaders related to the target object to use a non-
baked query by default unless the
MapperOption._generate_cache_key() method is implemented. In
particular, this repairs one regression which occured when
using the dogpile.cache ?advanced? example, which was not
returning cached results and instead emitting SQL due to an
incompatibility with the baked query loader; with the change,
the RelationshipCache option included for many releases in the
dogpile example will disable the ?baked? query altogether. Note
that the dogpile example is also modernized to avoid both of
these issues as part of issue #4258. References: #4128
+ [orm] [bug] Fixed bug where the new
baked.Result.with_post_criteria() method would not interact
with a subquery-eager loader correctly, in that the ?post
criteria? would not be applied to embedded subquery
eager loaders. This is related to #4128 in that the post
criteria feature is now used by the lazy loader.
+ [orm] [bug] Updated the dogpile.caching example to include new
structures that accommodate for the ?baked? query system, which
is used by default within lazy loaders and some eager
relationship loaders. The dogpile.caching ?relationship_caching?
and ?advanced? examples were also broken due to #4256. The
issue here is also worked-around by the fix in #4128.
References: #4258
* engine
+ [engine] [bug] Fixed connection pool issue whereby if a
disconnection error were raised during the connection pool?s
?reset on return? sequence in conjunction with an explicit
transaction opened against the enclosing Connection object
(such as from calling Session.close() without a rollback or
commit, or calling Connection.close() without first closing a
transaction declared with Connection.begin()), a double-checkin
would result, which could then lead towards concurrent
checkouts of the same connection. The double-checkin condition
is now prevented overall by an assertion, as well as the
specific double-checkin scenario has been fixed.
References: #4252
+ [engine] [bug] Fixed a reference leak issue where the values of
the parameter dictionary used in a statement execution would
remain referenced by the ?compiled cache?, as a result of
storing the key view used by Python 3 dictionary keys(). Pull
request courtesy Olivier Grisel.
* sql
+ [sql] [bug] Fixed issue where the ?ambiguous literal? error
message used when interpreting literal values as SQL expression
values would encounter a tuple value, and fail to format the
message properly. Pull request courtesy Miguel Ventura.
* mssql
+ [mssql] [bug] Fixed a 1.2 regression caused by #4061 where the
SQL Server ?BIT? type would be considered to be ?native
boolean?. The goal here was to avoid creating a CHECK
constraint on the column, however the bigger issue is that the
BIT value does not behave like a true/false constant and cannot
be interpreted as a standalone expression, e.g. ?WHERE
<column>?. The SQL Server dialect now goes back to being non-
native boolean, but with an extra flag that still avoids
creating the CHECK constraint. References: #4250
* oracle
+ [oracle] [bug] The Oracle BINARY_FLOAT and BINARY_DOUBLE
datatypes now participate within cx_Oracle.setinputsizes(),
passing along NATIVE_FLOAT, so as to support the NaN value.
Additionally, oracle.BINARY_FLOAT, oracle.BINARY_DOUBLE and
oracle.DOUBLE_PRECISION now subclass Float, since these are
floating point datatypes, not decimal. These datatypes were
already defaulting the Float.asdecimal flag to False in line
with what Float already does. References: #4264
+ [oracle] [bug] Added reflection capabilities for the
oracle.BINARY_FLOAT, oracle.BINARY_DOUBLE datatypes.
+ [oracle] [bug] Altered the Oracle dialect such that when an
Integer type is in use, the cx_Oracle.NUMERIC type is set up
for setinputsizes(). In SQLAlchemy 1.1 and earlier,
cx_Oracle.NUMERIC was passed for all numeric types
unconditionally, and in 1.2 this was removed to allow for
better numeric precision. However, for integers, some
database/client setups will fail to coerce boolean values
True/False into integers which introduces regressive behavior
when using SQLAlchemy 1.2. Overall, the setinputsizes logic
seems like it will need a lot more flexibility going forward so
this is a start for that. References: #4259
* misc
+ [bug] [ext] The horizontal sharding extension now makes use of
the identity token added to ORM identity keys as part of #4137,
when an object refresh or column-based deferred load or
unexpiration operation occurs. Since we know the ?shard? that
the object originated from, we make use of this value when
refreshing, thereby avoiding queries against other shards that
don?t match this object?s identity in any case.
References: #4247
+ [bug] [ext] Fixed a race condition which could occur if automap
AutomapBase.prepare() were used within a multi-threaded context
against other threads which may call configure_mappers() as a
result of use of other mappers. The unfinished mapping work of
automap is particularly sensitive to being pulled in by a
configure_mappers() step leading to errors. References: #4266
+ [bug] [tests] Fixed a bug in the test suite where if an
external dialect returned None for server_version_info, the
exclusion logic would raise an AttributeError.
References: #4249
Version: 1.2.7-bp150.1.2
* Sat Apr 21 2018 arun@gmx.de
- update to version 1.2.7:
* orm
+ [orm] [bug] Fixed regression in 1.2 within sharded query feature
where the new ?identity_token? element was not being correctly
considered within the scope of a lazy load operation, when
searching the identity map for a related many-to-one
element. The new behavior will allow for making use of the
?id_chooser? in order to determine the best identity key to
retrieve from the identity map. In order to achieve this, some
refactoring of 1.2?s ?identity_token? approach has made some
slight changes to the implementation of ShardedQuery which
should be noted for other derivations of this class.
References: #4228
+ [orm] [bug] Fixed issue in single-inheritance loading where the
use of an aliased entity against a single-inheritance subclass
in conjunction with the Query.select_from() method would cause
the SQL to be rendered with the unaliased table mixed in to the
query, causing a cartesian product. In particular this was
affecting the new ?selectin? loader when used against a
single-inheritance subclass. References: #4241
* sql
+ [sql] [bug] Fixed issue where the compilation of an INSERT
statement with the ?literal_binds? option that also uses an
explicit sequence and ?inline? generation, as on Postgresql and
Oracle, would fail to accommodate the extra keyword argument
within the sequence processing routine. References: #4231
* postgresql
+ [postgresql] [feature] Added new PG type postgresql.REGCLASS
which assists in casting table names to OID values. Pull request
courtesy Sebastian Bank. References: #4160
+ [postgresql] [bug] Fixed bug where the special ?not equals?
operator for the Postgresql ?range? datatypes such as DATERANGE
would fail to render ?IS NOT NULL? when compared to the Python
None value. References: #4229
* mssql
+ [mssql] [bug] Fixed 1.2 regression caused by #4060 where the
query used to reflect SQL Server cross-schema foreign keys was
limiting the criteria incorrectly. References: #4234
* oracle
+ [oracle] [bug] The Oracle NUMBER datatype is reflected as
INTEGER if the precision is NULL and the scale is zero, as this
is how INTEGER values come back when reflected from Oracle?s
tables. Pull request courtesy Kent Bower.
* Sun Apr 01 2018 arun@gmx.de
- specfile:
* run spec-cleaner
- update to version 1.2.6:
* orm
+ [orm] [bug] Fixed bug where using Mutable.associate_with() or
Mutable.as_mutable() in conjunction with a class that has non-
primary mappers set up with alternatively-named attributes would
produce an attribute error. Since non-primary mappers are not
used for persistence, the mutable extension now excludes
non-primary mappers from its instrumentation steps. References:
[#4215]
* engine
+ [engine] [bug] Fixed bug in connection pool where a connection
could be present in the pool without all of its ?connect? event
handlers called, if a previous ?connect? handler threw an
exception; note that the dialects themselves have connect
handlers that emit SQL, such as those which set transaction
isolation, which can fail if the database is in a non-available
state, but still allows a connection. The connection is now
invalidated first if any of the connect handlers fail.
References: #4225
* sql
+ [sql] [bug] Fixed a regression that occurred from the previous
fix to #4204 in version 1.2.5, where a CTE that refers to itself
after the CTE.alias() method has been called would not refer to
iself correctly. References: #4204
* postgresql
+ [postgresql] [feature] Added support for ?PARTITION BY? in
Postgresql table definitions, using
?postgresql_partition_by?. Pull request courtesy Vsevolod
Solovyov.
* mssql
+ [mssql] [bug] Adjusted the SQL Server version detection for
pyodbc to only allow for numeric tokens, filtering out
non-integers, since the dialect does tuple- numeric comparisons
with this value. This is normally true for all known SQL Server
/ pyodbc drivers in any case. References: #4227
* oracle
+ [oracle] [bug] The minimum cx_Oracle version supported is 5.2
(June 2015). Previously, the dialect asserted against version
5.0 but as of 1.2.2 we are using some symbols that did not
appear until 5.2. References: #4211
* misc
+ [bug] [declarative] Removed a warning that would be emitted when
calling upon __table_args__, __mapper_args__ as named with a
@declared_attr method, when called from a non-mapped declarative
mixin. Calling these directly is documented as the approach to
use when one is overidding one of these methods on a mapped
class. The warning still emits for regular attribute names.
References: #4221
* Thu Mar 08 2018 arun@gmx.de
- update to version 1.2.5:
* orm
+ [orm] [feature] Added new feature
Query.only_return_tuples(). Causes the Query object to return
keyed tuple objects unconditionally even if the query is against
a single entity. Pull request courtesy Eric Atkin.
+ [orm] [bug] Fixed bug in new ?polymorphic selectin? loading when
a selection of polymorphic objects were to be partially loaded
from a relationship lazy loader, leading to an ?empty IN?
condition within the load that raises an error for the ?inline?
form of ?IN?. References: #4199
+ [orm] [bug] Fixed 1.2 regression where a mapper option that
contains an AliasedClass object, as is typical when using the
QueryableAttribute.of_type() method, could not be pickled. 1.1?s
behavior was to omit the aliased class objects from the path, so
this behavior is restored. References: #4209
* sql
+ [sql] [bug] Fixed bug in :class:.`CTE` construct along the same
lines as that of #4204 where a CTE that was aliased would not
copy itself correctly during a ?clone? operation as is frequent
within the ORM as well as when using the ClauseElement.params()
method. References: #4210
+ [sql] [bug] Fixed bug in CTE rendering where a CTE that was also
turned into an Alias would not render its ?ctename AS aliasname?
clause appropriately if there were more than one reference to
the CTE in a FROM clause. References: #4204
+ [sql] [bug] Fixed bug in new ?expanding IN parameter? feature
where the bind parameter processors for values wasn?t working at
all, tests failed to cover this pretty basic case which includes
that ENUM values weren?t working. References: #4198
* postgresql
+ [postgresql] [bug] [py3k] Fixed bug in Postgresql COLLATE /
ARRAY adjustment first introduced in #4006 where new behaviors
in Python 3.7 regular expressions caused the fix to fail. This
change is also backported to: 1.1.18 References: #4208
* mysql
+ [mysql] [bug] MySQL dialects now query the server version using
SELECT @@version explicitly to the server to ensure we are
getting the correct version information back. Proxy servers like
MaxScale interfere with the value that is passed to the DBAPI?s
connection.server_version value so this is no longer reliable.
This change is also backported to: 1.1.18 References: #4205
* Fri Feb 23 2018 arun@gmx.de
- update to version 1.2.4:
* orm
+ [orm] [bug] Fixed 1.2 regression in ORM versioning feature where
a mapping against a select() or alias() that also used a
versioning column against the underlying table would fail due to
the check added as part of #3673. References: #4193
* engine
+ [engine] [bug] Fixed regression caused in 1.2.3 due to fix from
[#4181] where the changes to the event system involving Engine and
OptionEngine did not accommodate for event removals, which would
raise an AttributeError when invoked at the class level.
References: #4190
* sql
+ [sql] [bug] Fixed bug where CTE expressions would not have their
name or alias name quoted when the given name is case sensitive
or otherwise requires quoting. Pull request courtesy Eric Atkin.
References: #4197
* Sun Feb 18 2018 arun@gmx.de
- update to version 1.2.3:
* orm
+ [orm] [feature] Added new argument
attributes.set_attribute.inititator to the
attributes.set_attribute() function, allowing an event token
received from a listener function to be propagated to subsequent
set events.
+ [orm] [bug] Fixed issue in post_update feature where an UPDATE
is emitted when the parent object has been deleted but the
dependent object is not. This issue has existed for a long time
however since 1.2 now asserts rows matched for post_update, this
was raising an error. This change is also backported to: 1.1.16
References: #4187
+ [orm] [bug] Fixed regression caused by fix for issue #4116
affecting versions 1.2.2 as well as 1.1.15, which had the effect
of mis-calculation of the ?owning class? of an AssociationProxy
as the NoneType class in some declarative mixin/inheritance
situations as well as if the association proxy were accessed off
of an un-mapped class. The ?figure out the owner? logic has been
replaced by an in-depth routine that searches through the
complete mapper hierarchy assigned to the class or subclass to
determine the correct (we hope) match; will not assign the owner
if no match is found. An exception is now raised if the proxy is
used against an un-mapped instance. This change is also
backported to: 1.1.16 References: #4185
+ [orm] [bug] Fixed bug where the Bundle object did not correctly
report upon the primary Mapper object represened by the bundle,
if any. An immediate side effect of this issue was that the new
selectinload loader strategy wouldn?t work with the horizontal
sharding extension. References: #4175
+ [orm] [bug] Fixed bug in concrete inheritance mapping where
user-defined attributes such as hybrid properties that mirror
the names of mapped attributes from sibling classes would be
overwritten by the mapper as non-accessible at the instance
level. Additionally ensured that user-bound descriptors are not
implicitly invoked at the class level during the mapper
configuration stage. References: #4188
+ [orm] [bug] Fixed bug where the orm.reconstructor() event helper
would not be recognized if it were applied to the __init__()
method of the mapped class. References: #4178
* engine
+ [engine] [bug] Fixed bug where events associated with an Engine
at the class level would be doubled when the
Engine.execution_options() method were used. To achieve this,
the semi-private class OptionEngine no longer accepts events
directly at the class level and will raise an error; the class
only propagates class-level events from its parent
Engine. Instance-level events continue to work as before.
References: #4181
+ [engine] [bug] The URL object now allows query keys to be
specified multiple times where their values will be joined into
a list. This is to support the plugins feature documented at
CreateEnginePlugin which documents that ?plugin? can be passed
multiple times. Additionally, the plugin names can be passed to
create_engine() outside of the URL using the new
create_engine.plugins parameter. References: #4170
* sql
+ [sql] [feature] Added support for Enum to persist the values of
the enumeration, rather than the keys, when using a Python
pep-435 style enumerated object. The user supplies a callable
function that will return the string values to be
persisted. This allows enumerations against non-string values to
be value-persistable as well. Pull request courtesy Jon Snyder.
References: #3906
+ [sql] [bug] Fixed bug where the Enum type wouldn?t handle enum
?aliases? correctly, when more than one key refers to the same
value. Pull request courtesy Daniel Knell. References: #4180
* postgresql
+ [postgresql] [bug] Added ?SSL SYSCALL error: Operation timed
out? to the list of messages that trigger a ?disconnect?
scenario for the psycopg2 driver. Pull request courtesy André
Cruz. This change is also backported to: 1.1.16
+ [postgresql] [bug] Added ?TRUNCATE? to the list of keywords
accepted by the Postgresql dialect as an ?autocommit?-triggering
keyword. Pull request courtesy Jacob Hayes. This change is also
backported to: 1.1.16
* sqlite
+ [sqlite] [bug] Fixed the import error raised when a platform has
neither pysqlite2 nor sqlite3 installed, such that the
sqlite3-related import error is raised, not the pysqlite2 one
which is not the actual failure mode. Pull request courtesy
Robin.
* oracle
+ [oracle] [feature] The ON DELETE options for foreign keys are
now part of Oracle reflection. Oracle does not support ON UPDATE
cascades. Pull request courtesy Miroslav Shubernetskiy.
+ [oracle] [bug] Fixed bug in cx_Oracle disconnect detection, used
by pre_ping and other features, where an error could be raised
as DatabaseError which includes a numeric error code; previously
we weren?t checking in this case for a disconnect code.
References: #4182
* misc
+ [bug] [pool] Fixed a fairly serious connection pool bug where a
connection that is acquired after being refreshed as a result of
a user-defined DisconnectionError or due to the 1.2-released
?pre_ping? feature would not be correctly reset if the
connection were returned to the pool by weakref cleanup
(e.g. the front-facing object is garbage collected); the weakref
would still refer to the previously invalidated DBAPI connection
which would have the reset operation erroneously called upon it
instead. This would lead to stack traces in the logs and a
connection being checked into the pool without being reset,
which can cause locking issues. This change is also backported
to: 1.1.16 References: #4184
+ [bug] [tests] A test added in 1.2 thought to confirm a Python
2.7 behavior turns out to be confirming the behavior only as of
Python 2.7.8. Python bug #8743 still impacts set comparison in
Python 2.7.7 and earlier, so the test in question involving
AssociationSet no longer runs for these older Python 2.7
versions. References: #3265
* Sun Jan 28 2018 arun@gmx.de
- update to version 1.2.2:
* orm
+ [orm] [bug] Fixed 1.2 regression regarding new bulk_replace
event where a backref would fail to remove an object from the
previous owner when a bulk-assignment assigned the object to a
new owner. References: #4171
* mysql
+ [mysql] [bug] Added more MySQL 8.0 reserved words to the MySQL
dialect for quoting purposes. Pull request courtesy Riccardo
Magliocchetti.
* mssql
+ [mssql] [bug] Added ODBC error code 10054 to the list of error
codes that count as a disconnect for ODBC / MSSQL server.
References: #4164
* oracle
+ [oracle] [bug] The cx_Oracle dialect now calls setinputsizes()
with cx_Oracle.NCHAR unconditionally when the NVARCHAR2
datatype, in SQLAlchemy corresponding to sqltypes.Unicode(), is
in use. Per cx_Oracle?s author this allows the correct
conversions to occur within the Oracle client regardless of the
setting for NLS_NCHAR_CHARACTERSET. References: #4163
* Wed Jan 17 2018 arun@gmx.de
- update to version 1.2.1:
* orm
+ [orm] [bug] Fixed bug where an object that is expunged during a
rollback of a nested or subtransaction which also had its
primary key mutated would not be correctly removed from the
session, causing subsequent issues in using the session.
+ [orm] [bug] Fixed regression where pickle format of a Load /
_UnboundLoad object (e.g. loader options) changed and
__setstate__() was raising an UnboundLocalError for an object
received from the legacy format, even though an attempt was made
to do so. tests are now added to ensure this works.
+ [orm] [bug] Fixed regression caused by new lazyload caching
scheme in #3954 where a query that makes use of loader options
with of_type would cause lazy loads of unrelated paths to fail
with a TypeError.
+ [orm] [bug] Fixed bug in new ?selectin? relationship loader
where the loader could try to load a non-existent relationship
when loading a collection of polymorphic objects, where only
some of the mappers include that relationship, typically when
PropComparator.of_type() is being used.
* sql
+ [sql] [bug] Fixed bug in Insert.values() where using the
?multi-values? format in combination with Column objects as keys
rather than strings would fail. Pull request courtesy Aubrey
Stark-Toller.
* mssql
+ [mssql] [bug] Fixed regression in 1.2 where newly repaired
quoting of collation names in #3785 breaks SQL Server, which
explicitly does not understand a quoted collation name. Whether
or not mixed-case collation names are quoted or not is now
deferred down to a dialect-level decision so that each dialect
can prepare these identifiers directly.
* oracle
+ [oracle] [bug] Fixed regression where the removal of most
setinputsizes rules from cx_Oracle dialect impacted the
TIMESTAMP datatype?s ability to retrieve fractional seconds.
+ [oracle] [bug] Fixed regression in Oracle imports where a
missing comma caused an undefined symbol to be present. Pull
request courtesy Miroslav Shubernetskiy.
* misc
+ [bug] [ext] Fixed regression in association proxy due to #3769
(allow for chained any() / has()) where contains() against an
association proxy chained in the form (o2m relationship,
associationproxy(m2o relationship, m2o relationship)) would
raise an error regarding the re-application of contains() on the
final link of the chain.
+ [bug] [tests] Removed an oracle-specific requirements rule from
the public test suite that was interfering with third party
dialect suites.
+ [bug] [tests] Added a new exclusion rule
group_by_complex_expression which disables tests that use ?GROUP
BY <expr>?, which seems to be not viable for at least two third
party dialects.
* Wed Jan 03 2018 arun@gmx.de
- specfile:
* updated test requirements
* Sun Dec 31 2017 arun@gmx.de
- update to version 1.2.0:
* See https://docs.sqlalchemy.org/en/latest/changelog/changelog_12.html
* Mon Sep 25 2017 arun@gmx.de
- update to version 1.1.14:
* orm
+ [orm] [bug] Fixed bug in Session.merge() following along similar
lines as that of #4030, where an internal check for a target
object in the identity map could lead to an error if it were to
be garbage collected immediately before the merge routine
actually retrieves the object. References: #4069
+ [orm] [bug] Fixed bug where an undefer_group() option would not
be recognized if it extended from a relationship that was
loading using joined eager loading. Additionally, as the bug led
to excess work being performed, Python function call counts are
also improved by 20% within the initial calculation of result
set columns, complementing the joined eager load improvements of
[#3915]. References: #4048
+ [orm] [bug] Fixed race condition in ORM identity map which would
cause objects to be inappropriately removed during a load
operation, causing duplicate object identities to occur,
particularly under joined eager loading which involves
deduplication of objects. The issue is specific to garbage
collection of weak references and is observed only under the
Pypy interpreter. References: #4068
+ [orm] [bug] Fixed bug in Session.merge() where objects in a
collection that had the primary key attribute set to None for a
key that is typically autoincrementing would be considered to be
a database-persisted key for part of the internal deduplication
process, causing only one object to actually be inserted in the
database. References: #4056
+ [orm] [bug] An InvalidRequestError is raised when a synonym() is
used against an attribute that is not against a MapperProperty,
such as an association proxy. Previously, a recursion overflow
would occur trying to locate non-existent attributes. References: #4067
* sql
+ [sql] [bug] Altered the range specification for window functions
to allow for two of the same PRECEDING or FOLLOWING keywords in
a range by allowing for the left side of the range to be
positive and for the right to be negative, e.g. (1, 3) is ?1
FOLLOWING AND 3 FOLLOWING?. References: #4053
- changes from version 1.1.13:
* oracle
+ [oracle] [bug] [py2k] [performance] Fixed performance regression
caused by the fix for #3937 where cx_Oracle as of version 5.3
dropped the .UNICODE symbol from its namespace, which was
interpreted as cx_Oracle?s ?WITH_UNICODE? mode being turned on
unconditionally, which invokes functions on the SQLAlchemy side
which convert all strings to unicode unconditionally and causing
a performance impact. In fact, per cx_Oracle?s author the
?WITH_UNICODE? mode has been removed entirely as of 5.1, so the
expensive unicode conversion functions are no longer necessary
and are disabled if cx_Oracle 5.1 or greater is detected under
Python 2. The warning against ?WITH_UNICODE? mode that was
removed under #3937 is also restored.
This change is also backported to: 1.0.19
References: #4035
* Tue Aug 08 2017 tbechtold@suse.com
- update to 1.1.12:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.12
* Fri Jul 07 2017 tbechtold@suse.com
- Update to 1.1.11:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.11
- Update to 1.1.10:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.10
* Sat May 06 2017 toddrme2178@gmail.com
- Don't provide python2-sqlalchemy, singlespec packages should use
correct name.
* Mon May 01 2017 toddrme2178@gmail.com
- Add literal python-sqlalchemy provides.
* Tue Apr 18 2017 toddrme2178@gmail.com
- Update to 1.1.9:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.9
- Update to 1.1.8:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.8
- Update to 1.1.7:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.7
- Update to 1.1.6:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.6
- Update to 1.1.5:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.5
- Update to 1.1.4:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.4
- Update to 1.1.3:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.3
- Update to 1.1.2:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.2
- Update to 1.1.1:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.1
- Update to 1.1.0:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_11.html#change-1.1.0
- Update to 1.0.18:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.18
- Update to 1.0.17:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.17
- Update to 1.0.16:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.16
- Implement single-spec version.
* Thu Sep 15 2016 toddrme2178@gmail.com
- Update to 1.0.15:
* See http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.15
http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.14
* Mon Jun 06 2016 dmueller@suse.com
- fix source url
* Fri Jun 03 2016 tbechtold@suse.com
- update to 1.0.13:
* see http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.12
and http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.13
Remove 0001-fix-sqlite3.10.0-test.patch. Applied upstream.
* Thu Feb 11 2016 aplanas@suse.com
- Add 0001-fix-sqlite3.10.0-test.patch
Backport fix after SQLite3.10 upgrade
* Mon Jan 11 2016 bwiedemann@suse.com
- update to 1.0.11:
* see http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.11
Version: 1.2.14-bp152.2.16
* Mon Nov 12 2018 Arun Persaud <arun@gmx.de>
- update to version 1.2.14:
* orm
+ [orm] [bug] Fixed bug in Session.bulk_update_mappings() where
alternate mapped attribute names would result in the primary key
column of the UPDATE statement being included in the SET clause,
as well as the WHERE clause; while usually harmless, for SQL
Server this can raise an error due to the IDENTITY column. This
is a continuation of the same bug that was fixed in #3849, where
testing was insufficient to catch this additional flaw.
References: #4357
+ [orm] [bug] Fixed a minor performance issue which could in some
cases add unnecessary overhead to result fetching, involving the
use of ORM columns and entities that include those same columns
at the same time within a query. The issue has to do with hash /
eq overhead when referring to the column in different ways.
References: #4347
* mysql
+ [mysql] [bug] Fixed regression caused by #4344 released in
1.2.13, where the fix for MySQL 8.0?s case sensitivity problem
with referenced column names when reflecting foreign key
referents is worked around using the information_schema.columns
view. The workaround was failing on OSX /
lower_case_table_names=2 which produces non-matching casing for
the information_schema.columns vs. that of SHOW CREATE TABLE, so
in case-insensitive SQL modes case-insensitive matching is now
used. References: #4361
* Thu Nov 01 2018 Arun Persaud <arun@gmx.de>
- update to version 1.2.13:
* orm
+ [orm] [bug] Fixed bug where ?dynamic? loader needs to explicitly
set the ?secondary? table in the FROM clause of the query, to
suit the case where the secondary is a join object that is
otherwise not pulled into the query from its columns alone.
References: #4349
* orm declarative
+ [bug] [declarative] [orm] Fixed regression caused by #4326 in
version 1.2.12 where using declared_attr with a mixin in
conjunction with orm.synonym() would fail to map the synonym
properly to an inherited subclass. References: #4350
+ [bug] [declarative] [orm] The column conflict resolution
technique discussed at Resolving Column Conflicts is now
functional for a Column that is also a primary key
column. Previously, a check for primary key columns declared on
a single-inheritance subclass would occur before the column copy
were allowed to pass. References: #4352
* sql
+ [sql] [feature] Refactored SQLCompiler to expose a
SQLCompiler.group_by_clause() method similar to the
SQLCompiler.order_by_clause() and SQLCompiler.limit_clause()
methods, which can be overridden by dialects to customize how
GROUP BY renders. Pull request courtesy Samuel Chou.
+ [sql] [bug] Fixed bug where the Enum.create_constraint flag on
the Enum datatype would not be propagated to copies of the type,
which affects use cases such as declarative mixins and abstract
bases. References: #4341
* postgresql
+ [postgresql] [bug] Added support for the aggregate_order_by
function to receive multiple ORDER BY elements, previously only
a single element was accepted. References: #4337
* mysql
+ [mysql] [bug] Added word function to the list of reserved words
for MySQL, which is now a keyword in MySQL 8.0 References: #4348
+ [mysql] [bug] Added a workaround for a MySQL bug #88718
introduced in the 8.0 series, where the reflection of a foreign
key constraint is not reporting the correct case sensitivity for
the referred column, leading to errors during use of the
reflected constraint such as when using the automap
extension. The workaround emits an additional query to the
information_schema tables in order to retrieve the correct case
sensitive name. References: #4344
* misc
+ [misc] [bug] Fixed issue where part of the utility language
helper internals was passing the wrong kind of argument to the
Python __import__ builtin as the list of modules to be
imported. The issue produced no symptoms within the core library
but could cause issues with external applications that redefine
the __import__ builtin or otherwise instrument it. Pull request
courtesy Joe Urciuoli.
+ [misc] [bug] [py3k] Fixed additional warnings generated by
Python 3.7 due to changes in the organization of the Python
collections and collections.abc packages. Previous collections
warnings were fixed in version 1.2.11. Pull request courtesy
xtreak. References: #4339
+ [bug] [ext] Added missing .index() method to list-based
association collections in the association proxy extension.
* Sat Sep 22 2018 Arun Persaud <arun@gmx.de>
- update to version 1.2.12:
* orm
+ [orm] [bug] Added a check within the weakref cleanup for the
InstanceState object to check for the presence of the dict
builtin, in an effort to reduce error messages generated when
these cleanups occur during interpreter shutdown. Pull request
courtesy Romuald Brunet.
+ [orm] [bug] Fixed bug where use of Lateral construct in
conjunction with Query.join() as well as
Query.select_entity_from() would not apply clause adaption to
the right side of the join. ?lateral? introduces the use case of
the right side of a join being correlatable. Previously,
adaptation of this clause wasn?t considered. Note that in 1.2
only, a selectable introduced by Query.subquery() is still not
adapted due to #4304; the selectable needs to be produced by the
select() function to be the right side of the ?lateral? join.
References: #4334
+ [orm] [bug] Fixed 1.2 regression caused by #3472 where the
handling of an ?updated_at? style column within the context of a
post-update operation would also occur for a row that is to be
deleted following the update, meaning both that a column with a
Python-side value generator would show the now-deleted value
that was emitted for the UPDATE before the DELETE (which was not
the previous behavor), as well as that a SQL- emitted value
generator would have the attribute expired, meaning the previous
value would be unreachable due to the row having been deleted
and the object detached from the session.The ?postfetch? logic
that was added as part of #3472 is now skipped entirely for an
object that ultimately is to be deleted. References: #4327
* orm declarative
+ [bug] [declarative] [orm] Fixed bug where the declarative scan
for attributes would receive the expression proxy delivered by a
hybrid attribute at the class level, and not the hybrid
attribute itself, when receiving the descriptor via the
@declared_attr callable on a subclass of an already-mapped
class. This would lead to an attribute that did not report
itself as a hybrid when viewed within
Mapper.all_orm_descriptors. References: #4326
* postgresql
+ [postgresql] [bug] Fixed bug in PostgreSQL dialect where
compiler keyword arguments such as literal_binds=True were not
being propagated to a DISTINCT ON expression. References: #4325
+ [postgresql] [bug] Fixed the postgresql.array_agg() function,
which is a slightly altered version of the usual
functions.array_agg() function, to also accept an incoming
?type? argument without forcing an ARRAY around it, essentially
the same thing that was fixed for the generic function in 1.1 in
[#4107]. References: #4324
+ [postgresql] [bug] Fixed bug in PostgreSQL ENUM reflection where
a case-sensitive, quoted name would be reported by the query
including quotes, which would not match a target column during
table reflection as the quotes needed to be stripped off.
References: #4323
* oracle
+ [oracle] [bug] Fixed issue for cx_Oracle 7.0 where the behavior
of Oracle param.getvalue() now returns a list, rather than a
single scalar value, breaking autoincrement logic throughout the
Core and ORM. The dml_ret_array_val compatibility flag is used
for cx_Oracle 6.3 and 6.4 to establish compatible behavior with
7.0 and forward, for cx_Oracle 6.2.1 and prior a version number
check falls back to the old logic. References: #4335
* misc
+ [bug] [ext] Fixed issue where BakedQuery did not include the
specific query class used by the Session as part of the cache
key, leading to incompatibilities when using custom query
classes, in particular the ShardedQuery which has some different
argument signatures. References: #4328