Changelog for python36-SQLAlchemy-1.4.15-2.1.i586.rpm :

* Fri May 14 2021 Arun Persaud - updated line numbers in patch- update to version 1.4.15:
* general + [general] [feature] A new approach has been applied to the warnings system in SQLAlchemy to accurately predict the appropriate stack level for each warning dynamically. This allows evaluating the source of SQLAlchemy-generated warnings and deprecation warnings to be more straightforward as the warning will indicate the source line within end-user code, rather than from an arbitrary level within SQLAlchemy’s own source code.
* orm + [orm] [bug] [regression] Fixed additional regression caused by “eager loaders run on unexpire” feature #1763 where the feature would run for a contains_eager() eagerload option in the case that the contains_eager() were chained to an additional eager loader option, which would then produce an incorrect query as the original query-bound join criteria were no longer present. + [orm] [bug] Fixed issue in subquery loader strategy which prevented caching from working correctly. This would have been seen in the logs as a “generated” message instead of “cached” for all subqueryload SQL emitted, which by saturating the cache with new keys would degrade overall performance; it also would produce “LRU size alert” warnings.
* sql + [sql] [bug] Adjusted the logic added as part of #6397 in 1.4.12 so that internal mutation of the BindParameter object occurs within the clause construction phase as it did before, rather than in the compilation phase. In the latter case, the mutation still produced side effects against the incoming construct and additionally could potentially interfere with other internal mutation routines.
* mysql + [mysql] [bug] [documentation] Added support for the ssl_check_hostname= parameter in mysql connection URIs and updated the mysql dialect documentation regarding secure connections. Original pull request courtesy of Jerry Zhao.- changes from version 1.4.14:
* orm + [orm] [bug] [regression] Fixed regression involving lazy=\'dynamic\' loader in conjunction with a detached object. The previous behavior was that the dynamic loader upon calling methods like .all() returns empty lists for detached objects without error, this has been restored; however a warning is now emitted as this is not the correct result. Other dynamic loader scenarios correctly raise DetachedInstanceError.
* engine + [engine] [usecase] [orm] Applied consistent behavior to the use case of calling .commit() or .rollback() inside of an existing .begin() context manager, with the addition of potentially emitting SQL within the block subsequent to the commit or rollback. This change continues upon the change first added in [#6155] where the use case of calling “rollback” inside of a .begin() contextmanager block was proposed: o calling .commit() or .rollback() will now be allowed without error or warning within all scopes, including that of legacy and future Engine, ORM Session, asyncio AsyncEngine. Previously, the Session disallowed this. o The remaining scope of the context manager is then closed; when the block ends, a check is emitted to see if the transaction was already ended, and if so the block returns without action. o It will now raise an error if subsequent SQL of any kind is emitted within the block, after .commit() or .rollback() is called. The block should be closed as the state of the executable object would otherwise be undefined in this state. + [engine] [bug] [regression] Established a deprecation path for calling upon the CursorResult.keys() method for a statement that returns no rows to provide support for legacy patterns used by the “records” package as well as any other non-migrated applications. Previously, this would raise ResourceClosedException unconditionally in the same way as it does when attempting to fetch rows. While this is the correct behavior going forward, the _cursor.LegacyCursorResult object will now in this case return an empty list for .keys() as it did in 1.3, while also emitting a 2.0 deprecation warning. The _cursor.CursorResult, used when using a 2.0-style “future” engine, will continue to raise as it does now.
* sql + [sql] [bug] [regression] Fixed regression caused by the “empty in” change just made in #6397 1.4.12 where the expression needs to be parenthesized for the “not in” use case, otherwise the condition will interfere with the other filtering criteria. + [sql] [bug] [regression] The TypeDecorator class will now emit a warning when used in SQL compilation with caching unless the .cache_ok flag is set to True or False. A new class-level attribute TypeDecorator.cache_ok may be set which will be used as an indication that all the parameters passed to the object are safe to be used as a cache key if set to True, False means they are not.
* Thu May 06 2021 Antonio Larrosa - Remove %ifpython2 (python2 flavor is disabled).- Do not use %if %{python_version_nodots} for BuildRequires.
* Wed May 05 2021 Antonio Larrosa - Remove broken %ifpython3 since the python2 flavor is disabled anyway.
* Tue May 04 2021 Antonio Larrosa - update to 1.4.13: orm
* Fixed regression in selectinload loader strategy that would cause it to cache its internal state incorrectly when handling relationships that join across more than one column, such as when using a composite foreign key. The invalid caching would then cause other unrelated loader operations to fail. References: #6410
* Fixed regression where Query.filter_by() would not work if the lead entity were a SQL function or other expression derived from the primary entity in question, rather than a simple entity or column of that entity. Additionally, improved the behavior of Select.filter_by() overall to work with column expressions even in a non-ORM context. References: #6414
* Fixed regression where using selectinload() and subqueryload() to load a two-level-deep path would lead to an attribute error. References: #6419
* Fixed regression where using the noload() loader strategy in conjunction with a “dynamic” relationship would lead to an attribute error as the noload strategy would attempt to apply itself to the dynamic loader. References: #6420 engine
* Restored a legacy transactional behavior that was inadvertently removed from the Connection as it was never tested as a known use case in previous versions, where calling upon the Connection.begin_nested() method, when no transaction is present, does not create a SAVEPOINT at all and instead starts an outer transaction, returning a RootTransaction object instead of a NestedTransaction object. This RootTransaction then will emit a real COMMIT on the database connection when committed. Previously, the 2.0 style behavior was present in all cases that would autobegin a transaction but not commit it, which is a behavioral change. When using a 2.0 style connection object, the behavior is unchanged from previous 1.4 versions; calling Connection.begin_nested() will “autobegin” the outer transaction if not already present, and then as instructed emit a SAVEPOINT, returning the NestedTransaction object. The outer transaction is committed by calling upon Connection.commit(), as is “commit-as-you-go” style usage. In non-“future” mode, while the old behavior is restored, it also emits a 2.0 deprecation warning as this is a legacy behavior. References: #6408 asyncio
* Fixed a regression introduced by #6337 that would create an asyncio.Lock which could be attached to the wrong loop when instantiating the async engine before any asyncio loop was started, leading to an asyncio error message when attempting to use the engine under certain circumstances. References: #6409 postgresql
* Add support for server side cursors in the pg8000 dialect for PostgreSQL. This allows use of the Connection.execution_options.stream_results option. References: #6198
* Tue May 04 2021 Antonio Larrosa - Removed use of pytest-xdist which is giving intermitent failed builds with internal errors like: INTERNALERROR> E RuntimeError: There is no current event loop in thread \'Dummy-1\'. [...] INTERNALERROR> /usr/lib/python3.9/site-packages/xdist/ dsession.py:190: AssertionError [gw6] node down: Not properly terminated
* Fri Apr 30 2021 Antonio Larrosa - Update to 1.4.12:
* There are many changes between the 1.4 and 1.3 branch so please check the full list at: https://docs.sqlalchemy.org/en/14/changelog/changelog_14.html- Update to the 1.4 branch: Version 1.4 is taking on a different focus than other SQLAlchemy releases in that it is in many ways attempting to serve as a potential migration point for a more dramatic series of API changes currently planned for release 2.0 of SQLAlchemy.
* Python 3.6 is the minimum Python 3 version; Python 2.7 still supported
* ORM Query is internally unified with select, update, delete; 2.0 style execution available.
* Transparent SQL Compilation Caching added to All DQL, DML Statements in Core, ORM.
* Declarative is now integrated into the ORM with new features
* Python Dataclasses, attrs Supported w/ Declarative, Imperative Mappings.
* Asynchronous IO Support for Core and ORM
* Many Core and ORM statement objects now perform much of their construction and validation in the compile phase
* Repaired internal importing conventions such that code linters may work correctly
* Support for SQL Regular Expression operators
* SQLAlchemy 2.0 Deprecations Mode
* API and Behavioral Changes - Core - A SELECT statement is no longer implicitly considered to be a FROM clause - select().join() and outerjoin() add JOIN criteria to the current query, rather than creating a subquery - The URL object is now immutable - Changes to CreateEnginePlugin - select(), case() now accept positional expressions - All IN expressions render parameters for each value in the list on the fly (e.g. expanding parameters) - Built-in FROM linting will warn for any potential cartesian products in a SELECT statement - New Result object - RowProxy is no longer a “proxy”; is now called Row and behaves like an enhanced named tuple - Rationale: To behave more like a named tuple rather than a mapping - Proxying behavior goes away, was also unnecessary in modern usage - SELECT objects and derived FROM clauses allow for duplicate columns and column labels - Improved column labeling for simple column expressions using CAST or similar - New \"post compile\" bound parameters used for LIMIT/OFFSET in Oracle, SQL Server - Connection-level transactions can now be inactive based on subtransaction - Enum and Boolean datatypes no longer default to \"create constraint\"
* New Features - ORM - Raiseload for Columns - ORM Batch inserts with psycopg2 now batch statements with RETURNING in most cases - ORM Bulk Update and Delete use RETURNING for \"fetch\" strategy when available
* Behavioral Changes - ORM - The \"KeyedTuple\" object returned by Query is replaced by Row - Session features new “autobegin” behavior - Viewonly relationships don’t synchronize backrefs - cascade_backrefs behavior deprecated for removal in 2.0 - Eager loaders emit during unexpire operations - Accessing an uninitialized collection attribute on a transient object no longer mutates __dict__ - The \"New instance conflicts with existing identity\" error is now a warning - Persistence-related cascade operations disallowed with viewonly=True - Stricter behavior when querying inheritance mappings using custom queries
* Dialect Changes - psycopg2 version 2.7 or higher is required for the PostgreSQL psycopg2 dialect - psycopg2 dialect no longer has limitations regarding bound parameter names - psycopg2 dialect features \"execute_values\" with RETURNING for INSERT statements by default - Removed “join rewriting” logic from SQLite dialect; updated imports - Added Sequence support for MariaDB 10.3 - Added Sequence support distinct from IDENTITY to SQL Server
* For an explanation of each of those changes, check - https://docs.sqlalchemy.org/en/14/changelog/migration_14.html- For the full list of changes in each revision in the 1.4 branch please read:
* https://docs.sqlalchemy.org/en/14/changelog/changelog_14.html- Do not build the python2 flavor. Python 2.7 is supposed to be supported but currently fails to build.- Rebase patch:
* tests_overcome_bpo42967.patch
* Tue Feb 23 2021 Matej Cepl - Add tests_overcome_bpo42967.patch to over effects of bpo#42967, which forbade mixing amps and semicolons in query strings as separators (gh#sqlalchemy/sqlalchemy#5969).
* Tue Feb 23 2021 Dirk Müller - update to 1.3.23:
* Release 1.3.23 contains an array of bugfixes specific to dialects such as Oracle, PostgreSQL, and MySQL.
* Wed Jan 20 2021 John Vandenberg - Skip one failing test on Python 3.6
* Sat Dec 19 2020 Dirk Müller - update to 1.3.22:
* Fixed regression which occured due to #5755 which implemented isolation level support for Oracle
* bugfixes for various engines, see https://docs.sqlalchemy.org/en/14/changelog/changelog_13.html#change-1.3.21
* Mon Oct 19 2020 Adrian Schröter - added gpg pub key for source validation- Update to version 1.3.20 pytest_depr_from_parent.patch is obsolete again orm
* An ArgumentError with more detail is now raised if the target parameter for Query.join() is set to an unmapped object. Prior to this change a less detailed AttributeError was raised. Pull request courtesy Ramon Williams. References: #4428
* Fixed issue where using a loader option against a string attribute name that is not actually a mapped attribute, such as a plain Python descriptor, would raise an uninformative AttributeError; a descriptive error is now raised. References: #4589 engine
* Fixed issue where a non-string object sent to SQLAlchemyError or a subclass, as occurs with some third party dialects, would fail to stringify correctly. Pull request courtesy Andrzej Bartosiński. References: #5599
* Repaired a function-level import that was not using SQLAlchemy’s standard late-import system within the sqlalchemy.exc module. References: #5632 sql
* Fixed issue where the pickle.dumps() operation against Over construct would produce a recursion overflow. References: #5644
* Fixed bug where an error was not raised in the case where a column() were added to more than one table() at a time. This raised correctly for the Column and Table objects. An ArgumentError is now raised when this occurs. References: #5618 postgresql
* The psycopg2 dialect now support PostgreSQL multiple host connections, by passing host/port combinations to the query string. References: #4392
* Adjusted the Comparator.any() and Comparator.all() methods to implement a straight “NOT” operation for negation, rather than negating the comparison operator. References: #5518
* Fixed issue where the ENUM type would not consult the schema translate map when emitting a CREATE TYPE or DROP TYPE during the test to see if the type exists or not. Additionally, repaired an issue where if the same enum were encountered multiple times in a single DDL sequence, the “check” query would run repeatedly rather than relying upon a cached value. References: #5520 mysql
* Adjusted the MySQL dialect to correctly parenthesize functional index expressions as accepted by MySQL 8. Pull request courtesy Ramon Williams. References: #5462
* The “skip_locked” keyword used with with_for_update() will emit a warning when used on MariaDB backends, and will then be ignored. This is a deprecated behavior that will raise in SQLAlchemy 1.4, as an application that requests “skip locked” is looking for a non-blocking operation which is not available on those backends. References: #5568
* Fixed bug where an UPDATE statement against a JOIN using MySQL multi-table format would fail to include the table prefix for the target table if the statement had no WHERE clause, as only the WHERE clause were scanned to detect a “multi table update” at that particular point. The target is now also scanned if it’s a JOIN to get the leftmost table as the primary table and the additional entries as additional FROM entries. References: #5617
* Add new MySQL reserved words: cube, lateral added in MySQL 8.0.1 and 8.0.14, respectively; this indicates that these terms will be quoted if used as table or column identifier names. References: #5539
* Fri Oct 09 2020 Matej Cepl - Replace pytest_depr_from_parent.patch with the upstream commit resolving same issue (gh#sqlalchemy/sqlalchemy#commit40cdb9c0bf4d).
* Thu Oct 08 2020 Matej Cepl - Add pytest_depr_from_parent.patch to fix FTBGS with pytest 6.
* (gh#sqlalchemy/sqlalchemy#5635)
* Thu Aug 20 2020 Ondřej Súkup - update to 1.3.19
* Adjusted the workings of the Mapper.all_orm_descriptors()
* The name of the virtual column used when using the AbstractConcreteBase and ConcreteBase classes can now be customized
* Repaired an issue where the “ORDER BY” clause rendering a label name rather than a complete expression
* The LookupError message will now provide the user with up to four possible values that a column is constrained to via the Enum
* Fixed issue where the Connection.execution_options.schema_translate_map feature would not take effect when the Sequence.next_value() function for a Sequence were used in the Column.server_default parameter and the create table DDL were emitted.
* Added a
*
*kw argument to the DeclarativeMeta.__init__() method
* Sun Jun 28 2020 Arun Persaud - update to version 1.3.18:
* orm + Improve error message when using Query.filter_by() in a query where the first entity is not a mapped class. References: #5326 + Added a new parameter query_expression.default_expr to the query_expression() construct, which will be appled to queries automatically if the with_expression() option is not used. Pull request courtesy Haoyu Sun. References: #5198
* engine + Further refinements to the fixes to the “reset” agent fixed in [#5326], which now emits a warning when it is not being correctly invoked and corrects for the behavior. Additional scenarios have been identified and fixed where this warning was being emitted. References: #5326 + Fixed issue in URL object where stringifying the object would not URL encode special characters, preventing the URL from being re-consumable as a real URL. Pull request courtesy Miguel Grinberg. References: #5341
* sql + Added a “.schema” parameter to the table() construct, allowing ad-hoc table expressions to also include a schema name. Pull request courtesy Dylan Modesitt. References: #5309 + Correctly apply self_group in type_coerce element. The type coerce element did not correctly apply grouping rules when using in an expression References: #5344 + Added Select.with_hint() output to the generic SQL string that is produced when calling str() on a statement. Previously, this clause would be omitted under the assumption that it was dialect specific. The hint text is presented within brackets to indicate the rendering of such hints varies among backends. References: [#5353] + Introduce IdentityOptions to store common parameters for sequences and identity columns. References: #5324 + Added .offset support to sybase dialect. Pull request courtesy Alan D. Snow. References: #5294
* schema + Fixed issue where dialect_options were omitted when a database object (e.g., Table) was copied using tometadata(). References: [#5276]
* mysql + Implemented row-level locking support for mysql. Pull request courtesy Quentin Somerville. References: #4860
* sqlite + SQLite 3.31 added support for computed column. This change enables their support in SQLAlchemy when targeting SQLite. References: #5297 + Added “exists” to the list of reserved words for SQLite so that this word will be quoted when used as a label or column name. Pull request courtesy Thodoris Sotiropoulos. References: [#5395]
* mssql + Refined the logic used by the SQL Server dialect to interpret multi-part schema names that contain many dots, to not actually lose any dots if the name does not have bracking or quoting used, and additionally to support a “dbname” token that has many parts including that it may have multiple, independently-bracketed sections. References: #5364, #5366 + Fixed an issue in the pyodbc connector such that a warning about pyodbc “drivername” would be emitted when using a totally empty URL. Empty URLs are normal when producing a non-connected dialect object or when using the “creator” argument to create_engine(). The warning now only emits if the driver name is missing but other parameters are still present. References: [#5346] + Fixed issue with assembling the ODBC connection string for the pyodbc DBAPI. Tokens containing semicolons and/or braces “{}” were not being correctly escaped, causing the ODBC driver to misinterpret the connection string attributes. References: [#5373] + Fixed issue where datetime.time parameters were being converted to datetime.datetime, making them incompatible with comparisons like >= against an actual TIME column. References: #5339 + Fixed an issue where the is_disconnect function in the SQL Server pyodbc dialect was incorrectly reporting the disconnect state when the exception messsage had a substring that matched a SQL Server ODBC error code. References: #5359 + Moved the supports_sane_rowcount_returning = False requirement from the PyODBCConnector level to the MSDialect_pyodbc since pyodbc does work properly in some circumstances. References: [#5321]
* oracle + Fixed bug in Oracle dialect where indexes that contain the full set of primary key columns would be mistaken as the primary key index itself, which is omitted, even if there were multiples. The check has been refined to compare the name of the primary key constraint against the index name itself, rather than trying to guess based on the columns present in the index. References: #5421
* misc + Added new option --raw to the examples.performance suite which will dump the raw profile test for consumption by any number of profiling visualizer tools. Removed the “runsnake” option as runsnake is very hard to build at this point;
* Sat May 23 2020 Arun Persaud - update to version 1.3.17:
* orm + Added an accessor Comparator.expressions which provides access to the group of columns mapped under a multi-column ColumnProperty attribute. References: #5262 + Introduce relationship.sync_backref flag in a relationship to control if the synchronization events that mutate the in-Python attributes are added. This supersedes the previous change #5149, which warned that viewonly=True relationship target of a back_populates or backref configuration would be disallowed. References: #5237 + Fixed bug where using with_polymorphic() as the target of a join via RelationshipComparator.of_type() on a mapper that already has a subquery-based with_polymorphic setting that’s equivalent to the one requested would not correctly alias the ON clause in the join. References: #5288 + Fixed issue in the area of where loader options such as selectinload() interact with the baked query system, such that the caching of a query is not supposed to occur if the loader options themselves have elements such as with_polymorphic() objects in them that currently are not cache-compatible. The baked loader could sometimes not fully invalidate itself in these some of these scenarios leading to missed eager loads. References: #5303 + Modified the internal “identity set” implementation, which is a set that hashes objects on their id() rather than their hash values, to not actually call the __hash__() method of the objects, which are typically user-mapped objects. Some methods were calling this method as a side effect of the implementation. References: #5304 + An informative error message is raised when an ORM many-to-one comparison is attempted against an object that is not an actual mapped instance. Comparisons such as those to scalar subqueries aren’t supported; generalized comparison with subqueries is better achieved using Comparator.has(). References: #5269
* engine + Fixed fairly critical issue where the DBAPI connection could be returned to the connection pool while still in an un-rolled-back state. The reset agent responsible for rolling back the connection could be corrupted in the case that the transaction was “closed” without being rolled back or committed, which can occur in some scenarios when using ORM sessions and emitting .close() in a certain pattern involving savepoints. The fix ensures that the reset agent is always active. References: [#5326]
* schema + Fixed issue where an Index that is deferred in being associated with a table, such as as when it contains a Column that is not associated with any Table yet, would fail to attach correctly if it also contained a non table-oriented expession. References: [#5298] + A warning is emitted when making use of the MetaData.sorted_tables attribute as well as the sort_tables() function, and the given tables cannot be correctly sorted due to a cyclic dependency between foreign key constraints. In this case, the functions will no longer sort the involved tables by foreign key, and a warning will be emitted. Other tables that are not part of the cycle will still be returned in dependency order. Previously, the sorted_table routines would return a collection that would unconditionally omit all foreign keys when a cycle was detected, and no warning was emitted. References: [#5316] + Add comment attribute to Column __repr__ method. References: [#4138]
* postgresql + Added support for columns or type ARRAY of Enum, JSON or JSONB in PostgreSQL. Previously a workaround was required in these use cases. References: #5265 + Raise an explicit CompileError when adding a table with a column of type ARRAY of Enum configured with Enum.native_enum set to False when Enum.create_constraint is not set to False References: #5266
* mssql + Fix a regression introduced by the reflection of computed column in MSSQL when using the legacy TDS version 4.2. The dialect will try to detect the protocol version of first connect and run in compatibility mode if it cannot detect it. References: #5255 + Fix a regression introduced by the reflection of computed column in MSSQL when using SQL server versions before 2012, which does not support the concat function. References: #5271
* oracle + Some modifications to how the cx_oracle dialect sets up per-column outputtype handlers for LOB and numeric datatypes to adjust for potential changes coming in cx_Oracle 8. References: [#5246] + Changed the implementation of fetching CLOB and BLOB objects to use cx_Oracle’s native implementation which fetches CLOB/BLOB objects inline with other result columns, rather than performing a separate fetch. As always, this can be disabled by setting auto_convert_lobs to False. + As part of this change, the behavior of a CLOB that was given a blank string on INSERT now returns None on SELECT, which is now consistent with that of VARCHAR on Oracle. References: #5314
* firebird + Adjusted dialect loading for firebird:// URIs so the external sqlalchemy-firebird dialect will be used if it has been installed, otherwise fall back to the (now deprecated) internal Firebird dialect. References: #5278
* Thu Apr 09 2020 Arun Persaud - update to version 1.3.16:
* orm + Fixed bug in orm.selectinload() loading option where two or more loaders that represent different relationships with the same string key name as referenced from a single orm.with_polymorphic() construct with multiple subclass mappers would fail to invoke each subqueryload separately, instead making use of a single string-based slot that would prevent the other loaders from being invoked. References: #5228 + Fixed issue where a lazyload that uses session-local “get” against a target many-to-one relationship where an object with the correct primary key is present, however it’s an instance of a sibling class, does not correctly return None as is the case when the lazy loader actually emits a load for that row. References: #5210 + Modified the queries used by subqueryload and selectinload to no longer ORDER BY the primary key of the parent entity; this ordering was there to allow the rows as they come in to be copied into lists directly with a minimal level of Python-side collation. However, these ORDER BY clauses can negatively impact the performance of the query as in many scenarios these columns are derived from a subquery or are otherwise not actual primary key columns such that SQL planners cannot make use of indexes. The Python-side collation uses the native itertools.group_by() to collate the incoming rows, and has been modified to allow multiple row-groups-per-parent to be assembled together using list.extend(), which should still allow for relatively fast Python-side performance. There will still be an ORDER BY present for a relationship that includes an explicit order_by parameter, however this is the only ORDER BY that will be added to the query for both kinds of loading. References: [#5162]
* orm declarative + The string argument accepted as the first positional argument by the relationship() function when using the Declarative API is no longer interpreted using the Python eval() function; instead, the name is dot separated and the names are looked up directly in the name resolution dictionary without treating the value as a Python expression. However, passing a string argument to the other relationship() parameters that necessarily must accept Python expressions will still use eval(); the documentation has been clarified to ensure that there is no ambiguity that this is in use. See also Evaluation of relationship arguments - details on string evaluation References: #5238
* sql + Add ability to literal compile a DateTime, Date or :class:”Time” when using the string dialect for debugging purposes. This change does not impact real dialect implementation that retain their current behavior. References: #5052
* schema + Added support for reflection of “computed” columns, which are now returned as part of the structure returned by Inspector.get_columns(). When reflecting full Table objects, computed columns will be represented using the Computed construct. References: #5063
* postgresql + Fixed issue where a “covering” index, e.g. those which have an INCLUDE clause, would be reflected including all the columns in INCLUDE clause as regular columns. A warning is now emitted if these additional columns are detected indicating that they are currently ignored. Note that full support for “covering” indexes is part of #4458. Pull request courtesy Marat Sharafutdinov. References: #5205
* mysql + Fixed issue in MySQL dialect when connecting to a psuedo-MySQL database such as that provided by ProxySQL, the up front check for isolation level when it returns no row will not prevent the dialect from continuing to connect. A warning is emitted that the isolation level could not be detected. References: #5239
* sqlite + Implemented AUTOCOMMIT isolation level for SQLite when using pysqlite. References: #5164
* mssql + Added support for ColumnOperators.is_distinct_from() and ColumnOperators.isnot_distinct_from() to SQL Server, MySQL, and Oracle. References: #5137
* oracle + Implemented AUTOCOMMIT isolation level for Oracle when using cx_Oracle. Also added a fixed default isolation level of READ COMMITTED for Oracle. References: #5200 + Fixed regression / incorrect fix caused by fix for #5146 where the Oracle dialect reads from the “all_tab_comments” view to get table comments but fails to accommodate for the current owner of the table being requested, causing it to read the wrong comment if multiple tables of the same name exist in multiple schemas. References: #5146
* misc + Fixed an issue that prevented the test suite from running with the recently released py.test 5.4.0. References: #5201 + Enum type now supports the parameter Enum.length to specify the length of the VARCHAR column to create when using non native enums by setting Enum.native_enum to False References: #5183 + Ensured that the “pyproject.toml” file is not included in builds, as the presence of this file indicates to pip that a pep-517 installation process should be used. As this mode of operation appears to be not well supported by current tools / distros, these problems are avoided within the scope of SQLAlchemy installation by omitting the file. References: #5207
* Sat Mar 14 2020 Dirk Mueller - update to 1.3.15:
* Adjusted the error message emitted by :meth:`.Query.join` when a left hand side can\'t be located that the :meth:`.Query.select_from` method is the best way to resolve the issue. Also, within the 1.3 series, used a deterministic ordering when determining the FROM clause from a given column entity passed to :class:`.Query` so that the same expression is determined each time.
* Fixed regression in 1.3.14 due to :ticket:`4849` where a sys.exc_info() call failed to be invoked correctly when a flush error would occur. Test coverage has been added for this exception case.
* Fixed bug where a CTE of an INSERT/UPDATE/DELETE that also uses RETURNING could then not be SELECTed from directly, as the internal state of the compiler would try to treat the outer SELECT as a DELETE statement itself and access nonexistent state.
* Fixed regression caused in 1.3.13 by :ticket:`5056` where a refactor of the ORM path registry system made it such that a path could no longer be compared to an empty tuple, which can occur in a particular kind of joined eager loading path. The \"empty tuple\" use case has been resolved so that the path registry is compared to a path registry in all cases;- Fix build for older distributions by buildrequiring a new-enough pytest
* Thu Mar 12 2020 Tomáš Chvátal - Fix build without python2
* Sun Jan 26 2020 Arun Persaud - specfile:
* update copyright year- update to version 1.3.13:
* orm + Added test support and repaired a wide variety of unnecessary reference cycles created for short-lived objects, mostly in the area of ORM queries. Thanks much to Carson Ip for the help on this. References: #5050, #5056, #5071 + Fixed regression in loader options introduced in 1.3.0b3 via [#4468] where the ability to create a loader option using PropComparator.of_type() targeting an aliased entity that is an inheriting subclass of the entity which the preceding relationship refers to would fail to produce a matching path. See also #5082 fixed in this same release which involves a similar kind of issue. References: #5107 + Fixed regression in joined eager loading introduced in 1.3.0b3 via #4468 where the ability to create a joined option across a with_polymorphic() into a polymorphic subclass using RelationshipProperty.of_type() and then further along regular mapped relationships would fail as the polymorphic subclass would not add itself to the load path in a way that could be located by the loader strategy. A tweak has been made to resolve this scenario. References: #5082 + Repaired a warning in the ORM flush process that was not covered by test coverage when deleting objects that use the “version_id” feature. This warning is generally unreachable unless using a dialect that sets the “supports_sane_rowcount” flag to False, which is not typically the case however is possible for some MySQL configurations as well as older Firebird drivers, and likely some third party dialects. References: #5068 + Fixed bug where usage of joined eager loading would not properly wrap the query inside of a subquery when Query.group_by() were used against the query. When any kind of result-limiting approach is used, such as DISTINCT, LIMIT, OFFSET, joined eager loading embeds the row-limited query inside of a subquery so that the collection results are not impacted. For some reason, the presence of GROUP BY was never included in this criterion, even though it has a similar effect as using DISTINCT. Additionally, the bug would prevent using GROUP BY at all for a joined eager load query for most database platforms which forbid non-aggregated, non-grouped columns from being in the query, as the additional columns for the joined eager load would not be accepted by the database. References: #5065 + Identified a performance issue in the system by which a join is constructed based on a mapped relationship. The clause adaption system would be used for the majority of join expressions including in the common case where no adaptation is needed. The conditions under which this adaptation occur have been refined so that average non-aliased joins along a simple relationship without a “secondary” table use about 70% less function calls.
* engine + Fixed issue where the collection of value processors on a Compiled object would be mutated when “expanding IN” parameters were used with a datatype that has bind value processors; in particular, this would mean that when using statement caching and/or baked queries, the same compiled._bind_processors collection would be mutated concurrently. Since these processors are the same function for a given bind parameter namespace every time, there was no actual negative effect of this issue, however, the execution of a Compiled object should never be causing any changes in its state, especially given that they are intended to be thread-safe and reusable once fully constructed. References: #5048
* sql + A function created using GenericFunction can now specify that the name of the function should be rendered with or without quotes by assigning the quoted_name construct to the .name element of the object. Prior to 1.3.4, quoting was never applied to function names, and some quoting was introduced in #4467 but no means to force quoting for a mixed case name was available. Additionally, the quoted_name construct when used as the name will properly register its lowercase name in the function registry so that the name continues to be available via the func. registry. See also GenericFunction References: #5079
* postgresql + Added support for prefixes to the CTE construct, to allow support for Postgresql 12 “MATERIALIZED” and “NOT MATERIALIZED” phrases. Pull request courtesy Marat Sharafutdinov. See also: HasCTE.cte() References: #5040 + Fixed issue where the PostgreSQL dialect would fail to parse a reflected CHECK constraint that was a boolean-valued function (as opposed to a boolean-valued expression). References: #5039 + Improved detection of two phase transactions requirement for the PostgreSQL database by testing that max_prepared_transactions is set to a value greater than 0. Pull request courtesy Federico Caselli. References: #5057
* mssql + Fixed issue where a timezone-aware datetime value being converted to string for use as a parameter value of a mssql.DATETIMEOFFSET column was omitting the fractional seconds. References: #5045
* misc + Fixed bug in sqlalchemy.ext.serializer where a unique BindParameter object could conflict with itself if it were present in the mapping itself, as well as the filter condition of the query, as one side would be used against the non-deserialized version and the other side would use the deserialized version. Logic is added to BindParameter similar to its “clone” method which will uniquify the parameter name upon deserialize so that it doesn’t conflict with its original. References: #5086 + Fixed a few test failures which would occur on Windows due to SQLite file locking issues, as well as some timing issues in connection pool related tests; pull request courtesy Federico Caselli. References: #4946
* Fri Dec 20 2019 Dirk Mueller - update to version 1.3.12:
* [orm] [bug] Fixed issue involving lazy=\"raise\" strategy where an ORM delete of an object would raise for a simple “use-get” style many-to-one relationship that had lazy=”raise” configured. This is inconsistent vs. the change introduced in 1.3 as part of #4353, where it was established that a history operation that does not expect emit SQL should bypass the lazy=\"raise\" check, and instead effectively treat it as lazy=\"raise_on_sql\" for this case. The fix adjusts the lazy loader strategy to not raise for the case where the lazy load was instructed that it should not emit SQL if the object were not present.
* [orm] [bug] Fixed regression introduced in 1.3.0 related to the association proxy refactor in #4351 that prevented composite() attributes from working in terms of an association proxy that references them.
* [orm] [bug] Setting persistence-related flags on relationship() while also setting viewonly=True will now emit a regular warning, as these flags do not make sense for a viewonly=True relationship. In particular, the “cascade” settings have their own warning that is generated based on the individual values, such as “delete, delete-orphan”, that should not apply to a viewonly relationship. Note however that in the case of “cascade”, these settings are still erroneously taking effect even though the relationship is set up as “viewonly”. In 1.4, all persistence-related cascade settings will be disallowed on a viewonly=True relationship in order to resolve this issue.
* [orm] [bug] [py3k] Fixed issue where when assigning a collection to itself as a slice, the mutation operation would fail as it would first erase the assigned collection inadvertently. As an assignment that does not change the contents should not generate events, the operation is now a no-op. Note that the fix only applies to Python 3; in Python 2, the __setitem__ hook isn’t called in this case; __setslice__ is used instead which recreates the list item-by-item in all cases.
* [orm] [bug] Fixed issue where by if the “begin” of a transaction failed at the Core engine/connection level, such as due to network error or database is locked for some transactional recipes, within the context of the Session procuring that connection from the conneciton pool and then immediately returning it, the ORM Session would not close the connection despite this connection not being stored within the state of that Session. This would lead to the connection being cleaned out by the connection pool weakref handler within garbage collection which is an unpreferred codepath that in some special configurations can emit errors in standard error.
* sql [sql] [bug] Fixed bug where “distinct” keyword passed to select() would not treat a string value as a “label reference” in the same way that the select.distinct() does; it would instead raise unconditionally. This keyword argument and the others passed to select() will ultimately be deprecated for SQLAlchemy 2.0.
* [sql] [bug] Changed the text of the exception for “Can’t resolve label reference” to include other kinds of label coercions, namely that “DISTINCT” is also in this category under the PostgreSQL dialect.
* Sat Nov 16 2019 Arun Persaud - update to version 1.3.11:
* orm + [orm] [bug] The relationship.omit_join flag was not intended to be manually set to True, and will now emit a warning when this occurs. The omit_join optimization is detected automatically, and the omit_join flag was only intended to disable the optimization in the hypothetical case that the optimization may have interfered with correct results, which has not been observed with the modern version of this feature. Setting the flag to True when it is not automatically detected may cause the selectin load feature to not work correctly when a non-default primary join condition is in use. References: #4954 + [orm] [bug] A warning is emitted if a primary key value is passed to Query.get() that consists of None for all primary key column positions. Previously, passing a single None outside of a tuple would raise a TypeError and passing a composite None (tuple of None values) would silently pass through. The fix now coerces the single None into a tuple where it is handled consistently with the other None conditions. Thanks to Lev Izraelit for the help with this. References: #4915 + [orm] [bug] The BakedQuery will not cache a query that was modified by a QueryEvents.before_compile() event, so that compilation hooks that may be applying ad-hoc modifications to queries will take effect on each run. In particular this is helpful for events that modify queries used in lazy loading as well as eager loading such as “select in” loading. In order to re-enable caching for a query modified by this event, a new flag bake_ok is added; see Using the before_compile event for details. A longer term plan to provide a new form of SQL caching should solve this kind of issue more comprehensively. References: #4947 + [orm] [bug] Fixed ORM bug where a “secondary” table that referred to a selectable which in some way would refer to the local primary table would apply aliasing to both sides of the join condition when a relationship-related join, either via Query.join() or by joinedload(), were generated. The “local” side is now excluded. References: #4974 + [orm] [usecase] Added accessor Query.is_single_entity() to Query, which will indicate if the results returned by this Query will be a list of ORM entities, or a tuple of entities or column expressions. SQLAlchemy hopes to improve upon the behavior of single entity / tuples in future releases such that the behavior would be explicit up front, however this attribute should be helpful with the current behavior. Pull request courtesy Patrick Hayes. References: #4934
* engine + [engine] [bug] Fixed bug where parameter repr as used in logging and error reporting needs additional context in order to distinguish between a list of parameters for a single statement and a list of parameter lists, as the “list of lists” structure could also indicate a single parameter list where the first parameter itself is a list, such as for an array parameter. The engine/connection now passes in an additional boolean indicating how the parameters should be considered. The only SQLAlchemy backend that expects arrays as parameters is that of psycopg2 which uses pyformat parameters, so this issue has not been too apparent, however as other drivers that use positional gain more features it is important that this be supported. It also eliminates the need for the parameter repr function to guess based on the parameter structure passed. References: #4902 + [engine] [bug] [postgresql] Fixed bug in Inspector where the cache key generation did not take into account arguments passed in the form of tuples, such as the tuple of view name styles to return for the PostgreSQL dialect. This would lead the inspector to cache too generally for a more specific set of criteria. The logic has been adjusted to include every keyword element in the cache, as every argument is expected to be appropriate for a cache else the caching decorator should be bypassed by the dialect. References: #4955
* sql + [sql] [bug] [py3k] Changed the repr() of the quoted_name construct to use regular string repr() under Python 3, rather than running it through “backslashreplace” escaping, which can be misleading. References: #4931 + [sql] [usecase] Added new accessors to expressions of type JSON to allow for specific datatype access and comparison, covering strings, integers, numeric, boolean elements. This revises the documented approach of CASTing to string when comparing values, instead adding specific functionality into the PostgreSQL, SQlite, MySQL dialects to reliably deliver these basic types in all cases. See also: JSON, JSON.Comparator.as_string(), JSON.Comparator.as_boolean(), JSON.Comparator.as_float(), JSON.Comparator.as_integer(), References: #4276 + [sql] [usecase] The text() construct now supports “unique” bound parameters, which will dynamically uniquify themselves on compilation thus allowing multiple text() constructs with the same bound parameter names to be combined together. References: [#4933]
* schema + [schema] [bug] Fixed bug where a table that would have a column label overlap with a plain column name, such as “foo.id AS foo_id” vs. “foo.foo_id”, would prematurely generate the ._label attribute for a column before this overlap could be detected due to the use of the index=True or unique=True flag on the column in conjunction with the default naming convention of \"column_0_label\". This would then lead to failures when ._label were used later to generate a bound parameter name, in particular those used by the ORM when generating the WHERE clause for an UPDATE statement. The issue has been fixed by using an alternate ._label accessor for DDL generation that does not affect the state of the Column. The accessor also bypasses the key-deduplication step as it is not necessary for DDL, the naming is now consistently \"_\" without any subsequent numeric symbols when used in DDL. References: [#4911] + [schema] [usecase] Added DDL support for “computed columns”; these are DDL column specifications for columns that have a server-computed value, either upon SELECT (known as “virtual”) or at the point of which they are INSERTed or UPDATEd (known as “stored”). Support is established for Postgresql, MySQL, Oracle SQL Server and Firebird. Thanks to Federico Caselli for lots of work on this one. See also: Computed (GENERATED ALWAYS AS) Columns References: #4894
* mysql + [mysql] [bug] Added “Connection was killed” message interpreted from the base pymysql.Error class in order to detect closed connection, based on reports that this message is arriving via a pymysql.InternalError() object which indicates pymysql is not handling it correctly. References: #4945
* mssql + [mssql] [bug] Fixed issue in MSSQL dialect where an expression-based OFFSET value in a SELECT would be rejected, even though the dialect can render this expression inside of a ROW NUMBER-oriented LIMIT/OFFSET construct. References: #4973 + [mssql] [bug] Fixed an issue in the Engine.table_names() method where it would feed the dialect’s default schema name back into the dialect level table function, which in the case of SQL Server would interpret it as a dot-tokenized schema name as viewed by the mssql dialect, which would cause the method to fail in the case where the database username actually had a dot inside of it. In 1.3, this method is still used by the MetaData.reflect() function so is a prominent codepath. In 1.4, which is the current master development branch, this issue doesn’t exist, both because MetaData.reflect() isn’t using this method nor does the method pass the default schema name explicitly. The fix nonetheless guards against the default server name value returned by the dialect from being interpreted as dot-tokenized name under any circumstances by wrapping it in quoted_name(). References: #4923
* oracle + [oracle] [bug] [firebird] Modified the approach of “name normalization” for the Oracle and Firebird dialects, which converts from the UPPERCASE-as-case-insensitive convention of these dialects into lowercase-as-case-insensitive for SQLAlchemy, to not automatically apply the quoted_name construct to a name that matches itself under upper or lower case conversion, as is the case for many non-european characters. All names used within metadata structures are converted to quoted_name objects in any case; the change here would only affect the output of some inspection functions. References: [#4931] + [oracle] [bug] The sqltypes.NCHAR datatype will now bind to the cx_Oracle.FIXED_NCHAR DBAPI data bindings when used in a bound parameter, which supplies proper comparison behavior against a variable-length string. Previously, the sqltypes.NCHAR datatype would bind to cx_oracle.NCHAR which is not fixed length; the sqltypes.CHAR datatype already binds to cx_Oracle.FIXED_CHAR so it is now consistent that sqltypes.NCHAR binds to cx_Oracle.FIXED_NCHAR. References: #4913 + [oracle] [usecase] Added dialect-level flag encoding_errors to the cx_Oracle dialect, which can be specified as part of create_engine(). This is passed to SQLAlchemy’s unicode decoding converter under Python 2, and to cx_Oracle’s cursor.var() object as the encodingErrors parameter under Python 3, for the very unusual case that broken encodings are present in the target database which cannot be fetched unless error handling is relaxed. The value is ultimately one of the Python “encoding errors” parameters passed to decode(). References: #4799
* firebird + [firebird] [bug] Added additional “disconnect” message “Error writing data to the connection” to Firebird disconnection detection. Pull request courtesy lukens. References: #4903
* misc + [bug] [tests] Fixed test failures which would occur with newer SQLite as of version 3.30 or greater, due to their addition of nulls ordering syntax as well as new restrictions on aggregate functions. Pull request courtesy Nils Philippsen. References: [#4920] + [bug] [installation] [windows] Added a workaround for a setuptools-related failure that has been observed as occurring on Windows installations, where setuptools is not correctly reporting a build error when the MSVC build dependencies are not installed and therefore not allowing graceful degradation into non C extensions builds. References: #4967
* Thu Nov 14 2019 Tomáš Chvátal - This package needs full fledged python on runtime so make sure we require it
* Wed Oct 30 2019 Tomáš Chvátal - Update to 1.3.10:
* Fixed regression in selectinload loader strategy
* Passing a plain string expression to Session.query() is deprecated
* A warning is emitted for a condition in which the Session may implicitly swap an object out of the identity map for another one with the same primary key
* Sat Aug 31 2019 Arun Persaud - update to version 1.3.8:
* orm + Fixed bug where Load objects were not pickleable due to mapper/relationship state in the internal context dictionary. These objects are now converted to picklable using similar techniques as that of other elements within the loader option system that have long been serializable. References: [#4823] + Added support for the use of an Enum datatype using Python pep-435 enumeration objects as values for use as a primary key column mapped by the ORM. As these values are not inherently sortable, as required by the ORM for primary keys, a new TypeEngine.sort_key_function attribute is added to the typing system which allows any SQL type to implement a sorting for Python objects of its type which is consulted by the unit of work. The Enum type then defines this using the database value of a given enumeration. The sorting scheme can be also be redefined by passing a callable to the Enum.sort_key_function parameter. Pull request courtesy Nicolas Caniart. References: [#4285]
* engine + Added new parameter create_engine.hide_parameters which when set to True will cause SQL parameters to no longer be logged, nor rendered in the string representation of a StatementError object. References: #4815 + Fixed an issue whereby if the dialect “initialize” process which occurs on first connect would encounter an unexpected exception, the initialize process would fail to complete and then no longer attempt on subsequent connection attempts, leaving the dialect in an un-initialized, or partially initialized state, within the scope of parameters that need to be established based on inspection of a live connection. The “invoke once” logic in the event system has been reworked to accommodate for this occurrence using new, private API features that establish an “exec once” hook that will continue to allow the initializer to fire off on subsequent connections, until it completes without raising an exception. This does not impact the behavior of the existing once=True flag within the event system. References: [#4807]
* postgresql + Revised the approach for the just added support for the psycopg2 “execute_values()” feature added in 1.3.7 for #4623. The approach relied upon a regular expression that would fail to match for a more complex INSERT statement such as one which had subqueries involved. The new approach matches exactly the string that was rendered as the VALUES clause. References: #4623 + Fixed bug where Postgresql operators such as postgresql.ARRAY.Comparator.contains() and postgresql.ARRAY.Comparator.contained_by() would fail to function correctly for non-integer values when used against a postgresql.array object, due to an erroneous assert statement. References: #4822 + Added support for reflection of CHECK constraints that include the special PostgreSQL qualifier “NOT VALID”, which can be present for CHECK constraints that were added to an exsiting table with the directive that they not be applied to existing data in the table. The PostgreSQL dictionary for CHECK constraints as returned by Inspector.get_check_constraints() may include an additional entry dialect_options which within will contain an entry \"not_valid\": True if this symbol is detected. Pull request courtesy Bill Finn. References: #4824
* sqlite + Fixed bug where a FOREIGN KEY that was set up to refer to the parent table by table name only without the column names would not correctly be reflected as far as setting up the “referred columns”, since SQLite’s PRAGMA does not report on these columns if they weren’t given explicitly. For some reason this was harcoded to assume the name of the local column, which might work for some cases but is not correct. The new approach reflects the primary key of the referred table and uses the constraint columns list as the referred columns list, if the remote column(s) aren’t present in the reflected pragma directly. References: #4810
* Sun Aug 25 2019 Arun Persaud - update to version 1.3.7:
* orm + Fixed regression caused by new selectinload for many-to-one logic where a primaryjoin condition not based on real foreign keys would cause KeyError if a related object did not exist for a given key value on the parent object. References: #4777 + Fixed bug where using Query.first() or a slice expression in conjunction with a query that has an expression based “offset” applied would raise TypeError, due to an “or” conditional against “offset” that did not expect it to be a SQL expression as opposed to an integer or None. References: #4803
* sql + Fixed issue where Index object which contained a mixture of functional expressions which were not resolvable to a particular column, in combination with string-based column names, would fail to initialize its internal state correctly leading to failures during DDL compilation. References: #4778 + Fixed bug where TypeEngine.column_expression() method would not be applied to subsequent SELECT statements inside of a UNION or other CompoundSelect, even though the SELECT statements are rendered at the topmost level of the statement. New logic now differentiates between rendering the column expression, which is needed for all SELECTs in the list, vs. gathering the returned data type for the result row, which is needed only for the first SELECT. References: #4787 + Fixed issue where internal cloning of SELECT constructs could lead to a key error if the copy of the SELECT changed its state such that its list of columns changed. This was observed to be occurring in some ORM scenarios which may be unique to 1.3 and above, so is partially a regression fix. References: #4780
* postgresql + Added new dialect flag for the psycopg2 dialect, executemany_mode which supersedes the previous experimental use_batch_mode flag. executemany_mode supports both the “execute batch” and “execute values” functions provided by psycopg2, the latter which is used for compiled insert() constructs. Pull request courtesy Yuval Dinari. See also: Psycopg2 Fast Execution Helpers; References: #4623
* mysql + The MySQL dialects will emit “SET NAMES” at the start of a connection when charset is given to the MySQL driver, to appease an apparent behavior observed in MySQL 8.0 that raises a collation error when a UNION includes string columns unioned against columns of the form CAST(NULL AS CHAR(..)), which is what SQLAlchemy’s polymorphic_union function does. The issue seems to have affected PyMySQL for at least a year, however has recently appeared as of mysqlclient 1.4.4 based on changes in how this DBAPI creates a connection. As the presence of this directive impacts three separate MySQL charset settings which each have intricate effects based on their presense, SQLAlchemy will now emit the directive on new connections to ensure correct behavior. References: #4804 + Added another fix for an upstream MySQL 8 issue where a case sensitive table name is reported incorrectly in foreign key constraint reflection, this is an extension of the fix first added for #4344 which affects a case sensitive column name. The new issue occurs through MySQL 8.0.17, so the general logic of the 88718 fix remains in place. See also: https://bugs.mysql.com/bug.php?id=96365 - upstream bug; References: #4751 + Added reserved words ARRAY and MEMBER to the MySQL reserved words list, as MySQL 8.0 has now made these reserved. References: #4783
* sqlite + The dialects that support json are supposed to take arguments json_serializer and json_deserializer at the create_engine() level, however the SQLite dialect calls them _json_serilizer and _json_deserilalizer. The names have been corrected, the old names are accepted with a change warning, and these parameters are now documented as create_engine.json_serializer and create_engine.json_deserializer. References: #4798 + Fixed bug where usage of “PRAGMA table_info” in SQLite dialect meant that reflection features to detect for table existence, list of table columns, and list of foreign keys, would default to any table in any attached database, when no schema name was given and the table did not exist in the base schema. The fix explicitly runs PRAGMA for the ‘main’ schema and then the ‘temp’ schema if the ‘main’ returned no rows, to maintain the behavior of tables + temp tables in the “no schema” namespace, attached tables only in the “schema” namespace. References: #4793
* mssql + Added new mssql.try_cast() construct for SQL Server which emits “TRY_CAST” syntax. Pull request courtesy Leonel Atencio. References: #4782
* misc + Fixed issue in event system where using the once=True flag with dynamically generated listener functions would cause event registration of future events to fail if those listener functions were garbage collected after they were used, due to an assumption that a listened function is strongly referenced. The “once” wrapped is now modified to strongly reference the inner function persistently, and documentation is updated that using “once” does not imply automatic de-registration of listener functions. References: #4794
* Mon Jul 22 2019 Todd R - update to version 1.3.6 + orm
* [feature] Added new loader option method Load.options() which allows loader options to be constructed hierarchically, so that many sub-options can be applied to a particular path without needing to call defaultload() many times.
* [bug] Fixed regression caused by #4365 where a join from an entity to itself without using aliases no longer raises an informative error message, instead failing on an assertion. The informative error condition has been restored.
* [bug] Fixed an issue where the orm._ORMJoin.join() method, which is a not-internally-used ORM-level method that exposes what is normally an internal process of Query.join(), did not propagate the full and outerjoin keyword arguments correctly.
* [bug] Fixed bug where a many-to-one relationship that specified uselist=True would fail to update correctly during a primary key change where a related column needs to change.
* [bug] Fixed bug where the detection for many-to-one or one-to-one use with a “dynamic” relationship, which is an invalid configuration, would fail to raise if the relationship were configured with uselist=True. The current fix is that it warns, instead of raises, as this would otherwise be backwards incompatible, however in a future release it will be a raise.
* [bug] Fixed bug where a synonym created against a mapped attribute that does not exist yet, as is the case when it refers to backref before mappers are configured, would raise recursion errors when trying to test for attributes on it which ultimately don’t exist (as occurs when the classes are run through Sphinx autodoc), as the unconfigured state of the synonym would put it into an attribute not found loop.
* [performance] The optimzation applied to selectin loading in #4340 where a JOIN is not needed to eagerly load related items is now applied to many-to-one relationships as well, so that only the related table is queried for a simple join condition. In this case, the related items are queried based on the value of a foreign key column on the parent; if these columns are deferred or otherwise not loaded on any of the parent objects in the collection, the loader falls back to the JOIN method. + engine
* [bug] Fixed bug where using reflection function such as MetaData.reflect() with an Engine object that had execution options applied to it would fail, as the resulting OptionEngine proxy object failed to include a .engine attribute used within the reflection routines. + sql
* [bug] Adjusted the initialization for Enum to minimize how often it invokes the .__members__ attribute of a given PEP-435 enumeration object, to suit the case where this attribute is expensive to invoke, as is the case for some popular third party enumeration libraries.
* [bug] [postgresql] Fixed issue where the array_agg construct in combination with FunctionElement.filter() would not produce the correct operator precedence in combination with the array index operator.
* [bug] Fixed an unlikely issue where the “corresponding column” routine for unions and other CompoundSelect objects could return the wrong column in some overlapping column situtations, thus potentially impacting some ORM operations when set operations are in use, if the underlying select() constructs were used previously in other similar kinds of routines, due to a cached value not being cleared. + postgresql
* [usecase] Added support for reflection of indexes on PostgreSQL partitioned tables, which was added to PostgreSQL as of version 11.
* [usecase] Added support for multidimensional Postgresql array literals via nesting the postgresql.array object within another one. The multidimensional array type is detected automatically. + mysql
* [bug] Fixed bug where the special logic to render “NULL” for the TIMESTAMP datatype when nullable=True would not work if the column’s datatype were a TypeDecorator or a Variant. The logic now ensures that it unwraps down to the original TIMESTAMP so that this special case NULL keyword is correctly rendered when requested.
* [bug] Enhanced MySQL/MariaDB version string parsing to accommodate for exotic MariaDB version strings where the “MariaDB” word is embedded among other alphanumeric characters such as “MariaDBV1”. This detection is critical in order to correctly accommodate for API features that have split between MySQL and MariaDB such as the “transaction_isolation” system variable. + sqlite
* [usecase] Added support for composite (tuple) IN operators with SQLite, by rendering the VALUES keyword for this backend. As other backends such as DB2 are known to use the same syntax, the syntax is enabled in the base compiler using a dialect-level flag tuple_in_values. The change also includes support for “empty IN tuple” expressions for SQLite when using “in_()” between a tuple value and an empty set. + mssql
* [bug] Ensured that the queries used to reflect indexes and view definitions will explicitly CAST string parameters into NVARCHAR, as many SQL Server drivers frequently treat string values, particularly those with non-ascii characters or larger string values, as TEXT which often don’t compare correctly against VARCHAR characters in SQL Server’s information schema tables for some reason. These CAST operations already take place for reflection queries against SQL Server information_schema. tables but were missing from three additional queries that are against sys.tables.
* Mon Jun 24 2019 Arun Persaud - update to version 1.3.5:
* orm + Fixed a series of related bugs regarding joined table inheritance more than two levels deep, in conjunction with modification to primary key values, where those primary key columns are also linked together in a foreign key relationship as is typical for joined table inheritance. The intermediary table in a three-level inheritance hierachy will now get its UPDATE if only the primary key value has changed and passive_updates=False (e.g. foreign key constraints not being enforced), whereas before it would be skipped; similarly, with passive_updates=True (e.g. ON UPDATE CASCADE in effect), the third-level table will not receive an UPDATE statement as was the case earlier which would fail since CASCADE already modified it. In a related issue, a relationship linked to a three-level inheritance hierarchy on the primary key of an intermediary table of a joined-inheritance hierarchy will also correctly have its foreign key column updated when the parent object’s primary key is modified, even if that parent object is a subclass of the linked parent class, whereas before these classes would not be counted. References: #4723 + Fixed bug where the Mapper.all_orm_descriptors accessor would return an entry for the Mapper itself under the declarative __mapper___ key, when this is not a descriptor. The .is_attribute flag that’s present on all InspectionAttr objects is now consulted, which has also been modified to be True for an association proxy, as it was erroneously set to False for this object. References: #4729 + Fixed regression in Query.join() where the aliased=True flag would not properly apply clause adaptation to filter criteria, if a previous join were made to the same entity. This is because the adapters were placed in the wrong order. The order has been reversed so that the adapter for the most recent aliased=True call takes precedence as was the case in 1.2 and earlier. This broke the “elementtree” examples among other things. References: #4704 + Replaced the Python compatbility routines for getfullargspec() with a fully vendored version from Python 3.3. Originally, Python was emitting deprecation warnings for this function in Python 3.8 alphas. While this change was reverted, it was observed that Python 3 implementations for getfullargspec() are an order of magnitude slower as of the 3.4 series where it was rewritten against Signature. While Python plans to improve upon this situation, SQLAlchemy projects for now are using a simple replacement to avoid any future issues. References: #4674 + Reworked the attribute mechanics used by AliasedClass to no longer rely upon calling __getattribute__ on the MRO of the wrapped class, and to instead resolve the attribute normally on the wrapped class using getattr(), and then unwrap/adapt that. This allows a greater range of attribute styles on the mapped class including special __getattr__() schemes; but it also makes the code simpler and more resilient in general. References: #4694
* sql + Fixed a series of quoting issues which all stemmed from the concept of the literal_column() construct, which when being “proxied” through a subquery to be referred towards by a label that matches its text, the label would not have quoting rules applied to it, even if the string in the Label were set up as a quoted_name construct. Not applying quoting to the text of the Label is a bug because this text is strictly a SQL identifier name and not a SQL expression, and the string should not have quotes embedded into it already unlike the literal_column() which it may be applied towards. The existing behavior of a non-labeled literal_column() being propagated as is on the outside of a subquery is maintained in order to help with manual quoting schemes, although it’s not clear if valid SQL can be generated for such a construct in any case. References: #4730
* postgresql + Fixed bug where PostgreSQL dialect could not correctly reflect an ENUM datatype that has no members, returning a list with None for the get_enums() call and raising a TypeError when reflecting a column which has such a datatype. The inspection now returns an empty list. References: #4701 + Added support for column sorting flags when reflecting indexes for PostgreSQL, including ASC, DESC, NULLSFIRST, NULLSLAST. Also adds this facility to the reflection system in general which can be applied to other dialects in future releases. Pull request courtesy Eli Collins. References: #4717
* mysql + Fixed bug where MySQL ON DUPLICATE KEY UPDATE would not accommodate setting a column to the value NULL. Pull request courtesy Lukáš Banič. References: #4715
* Sat Jun 08 2019 Arun Persaud - update to version 1.3.4:
* orm + Fixed issue where the AttributeEvents.active_history flag would not be set for an event listener that propgated to a subclass via the AttributeEvents.propagate flag. This bug has been present for the full span of the AttributeEvents system. References: #4695 + Fixed regression where new association proxy system was still not proxying hybrid attributes when they made use of the AATThybrid_property.expression decorator to return an alternate SQL expression, or when the hybrid returned an arbitrary PropComparator, at the expression level. This involved futher generalization of the heuristics used to detect the type of object being proxied at the level of QueryableAttribute, to better detect if the descriptor ultimately serves mapped classes or column expressions. References: #4690 + Applied the mapper “configure mutex” against the declarative class mapping process, to guard against the race which can occur if mappers are used while dynamic module import schemes are still in the process of configuring mappers for related classes. This does not guard against all possible race conditions, such as if the concurrent import has not yet encountered the dependent classes as of yet, however it guards against as much as possible within the SQLAlchemy declarative process. References: #4686 + A warning is now emitted for the case where a transient object is being merged into the session with Session.merge() when that object is already transient in the Session. This warns for the case where the object would normally be double-inserted. References: #4647 + Fixed regression in new relationship m2o comparison logic first introduced at Improvement to the behavior of many-to-one query expressions when comparing to an attribute that is persisted as NULL and is in an un-fetched state in the mapped instance. Since the attribute has no explicit default, it needs to default to NULL when accessed in a persistent setting. References: #4676
* engine + Moved the “rollback” which occurs during dialect initialization so that it occurs after additional dialect-specific initialize steps, in particular those of the psycopg2 dialect which would inadvertently leave transactional state on the first new connection, which could interfere with some psycopg2-specific APIs which require that no transaction is started. Pull request courtesy Matthew Wilkes. References: #4663
* sql + Fixed that the GenericFunction class was inadvertently registering itself as one of the named functions. Pull request courtesy Adrien Berchet. References: #4653 + Fixed issue where double negation of a boolean column wouldn’t reset the “NOT” operator. References: #4618 + The GenericFunction namespace is being migrated so that function names are looked up in a case-insensitive manner, as SQL functions do not collide on case sensitive differences nor is this something which would occur with user-defined functions or stored procedures. Lookups for functions declared with GenericFunction now use a case insensitive scheme, however a deprecation case is supported which allows two or more GenericFunction objects with the same name of different cases to exist, which will cause case sensitive lookups to occur for that particular name, while emitting a warning at function registration time. Thanks to Adrien Berchet for a lot of work on this complicated feature. References: #4569
* postgresql + Fixed an issue where the “number of rows matched” warning would emit even if the dialect reported “supports_sane_multi_rowcount=False”, as is the case for psycogp2 with use_batch_mode=True and others. References: #4661
* mysql + Added support for DROP CHECK constraint which is required by MySQL 8.0.16 to drop a CHECK constraint; MariaDB supports plain DROP CONSTRAINT. The logic distinguishes between the two syntaxes by checking the server version string for MariaDB presence. Alembic migrations has already worked around this issue by implementing its own DROP for MySQL / MariaDB CHECK constraints, however this change implements it straight in Core so that its available for general use. Pull request courtesy Hannes Hansen. References: #4650
* mssql + Added support for SQL Server filtered indexes, via the mssql_where parameter which works similarly to that of the postgresql_where index function in the PostgreSQL dialect. See also: Filtered Indexes References: #4657 + Added error code 20047 to “is_disconnect” for pymssql. Pull request courtesy Jon Schuff. References: #4680
* misc + Removed errant “sqla_nose.py” symbol from MANIFEST.in which created an undesirable warning message. References: #4625
* Sun Apr 21 2019 Arun Persaud - update to version 1.3.3:
* orm + Fixed 1.3 regression in new “ambiguous FROMs” query logic introduced in Query.join() handles ambiguity in deciding the “left” side more explicitly where a Query that explicitly places an entity in the FROM clause with Query.select_from() and also joins to it using Query.join() would later cause an “ambiguous FROM” error if that entity were used in additional joins, as the entity appears twice in the “from” list of the Query. The fix resolves this ambiguity by folding the standalone entity into the join that it’s already a part of in the same way that ultimately happens when the SELECT statement is rendered. References: #4584 + Adjusted the Query.filter_by() method to not call and() internally against multiple criteria, instead passing it off to Query.filter() as a series of criteria, instead of a single criteria. This allows Query.filter_by() to defer to Query.filter()’s treatment of variable numbers of clauses, including the case where the list is empty. In this case, the Query object will not have a .whereclause, which allows subsequent “no whereclause” methods like Query.select_from() to behave consistently. References: #4606
* postgresql + Fixed regression from release 1.3.2 caused by #4562 where a URL that contained only a query string and no hostname, such as for the purposes of specifying a service file with connection information, would no longer be propagated to psycopg2 properly. The change in #4562 has been adjusted to further suit psycopg2’s exact requirements, which is that if there are any connection parameters whatsoever, the “dsn” parameter is no longer required, so in this case the query string parameters are passed alone. References: #4601
* mssql + Fixed issue in SQL Server dialect where if a bound parameter were present in an ORDER BY expression that would ultimately not be rendered in the SQL Server version of the statement, the parameters would still be part of the execution parameters, leading to DBAPI-level errors. Pull request courtesy Matt Lewellyn. References: #4587
* misc + Fixed behavioral regression as a result of deprecating the “use_threadlocal” flag for Pool, where the SingletonThreadPool no longer makes use of this option which causes the “rollback on return” logic to take place when the same Engine is used multiple times in the context of a transaction to connect or implicitly execute, thereby cancelling the transaction. While this is not the recommended way to work with engines and connections, it is nonetheless a confusing behavioral change as when using SingletonThreadPool, the transaction should stay open regardless of what else is done with the same engine in the same thread. The use_threadlocal flag remains deprecated however the SingletonThreadPool now implements its own version of the same logic. References: #4585 + Fixed bug where using copy.copy() or copy.deepcopy() on MutableList would cause the items within the list to be duplicated, due to an inconsistency in how Python pickle and copy both make use of __getstate__() and __setstate__() regarding lists. In order to resolve, a __reduce_ex__ method had to be added to MutableList. In order to maintain backwards compatibility with existing pickles based on __getstate__(), the __setstate__() method remains as well; the test suite asserts that pickles made against the old version of the class can still be deserialized by the pickle module. References: #4603
* Wed Apr 10 2019 Arun Persaud - update to version 1.3.2:
* orm + [orm] [bug] [ext] Restored instance-level support for plain Python descriptors, e.g. AATTproperty objects, in conjunction with association proxies, in that if the proxied object is not within ORM scope at all, it gets classified as “ambiguous” but is proxed directly. For class level access, a basic class level\"__get__()\" now returns the AmbiguousAssociationProxyInstance directly, rather than raising its exception, which is the closest approximation to the previous behavior that returned the AssociationProxy itself that’s possible. Also improved the stringification of these objects to be more descriptive of current state. References: [#4573], #4574 + [orm] [bug] Fixed bug where use of with_polymorphic() or other aliased construct would not properly adapt when the aliased target were used as the Select.correlate_except() target of a subquery used inside of a column_property(). This required a fix to the clause adaption mechanics to properly handle a selectable that shows up in the “correlate except” list, in a similar manner as which occurs for selectables that show up in the “correlate” list. This is ultimately a fairly fundamental bug that has lasted for a long time but it is hard to come across it. References: #4537 + [orm] [bug] Fixed regression where a new error message that was supposed to raise when attempting to link a relationship option to an AliasedClass without using PropComparator.of_type() would instead raise an AttributeError. Note that in 1.3, it is no longer valid to create an option path from a plain mapper relationship to an AliasedClass without using PropComparator.of_type(). References: #4566
* sql + [sql] [bug] [documentation] Thanks to TypeEngine methods bind_expression, column_expression work with Variant, type-specific types, we no longer need to rely on recipes that subclass dialect-specific types directly, TypeDecorator can now handle all cases. Additionally, the above change made it slightly less likely that a direct subclass of a base SQLAlchemy type would work as expected, which could be misleading. Documentation has been updated to use TypeDecorator for these examples including the PostgreSQL “ArrayOfEnum” example datatype and direct support for the “subclass a type directly” has been removed. References: #4580
* postgresql + [postgresql] [feature] Added support for parameter-less connection URLs for the psycopg2 dialect, meaning, the URL can be passed to create_engine() as \"postgresql+psycopg2://\" with no additional arguments to indicate an empty DSN passed to libpq, which indicates to connect to “localhost” with no username, password, or database given. Pull request courtesy Julian Mehnle. References: #4562 + [postgresql] [bug] Modified the Select.with_for_update.of parameter so that if a join or other composed selectable is passed, the individual Table objects will be filtered from it, allowing one to pass a join() object to the parameter, as occurs normally when using joined table inheritance with the ORM. Pull request courtesy Raymond Lu. References: #4550
* Sun Mar 10 2019 Arun Persaud - specfile:
* removed test.patch (included upstream)- update to version 1.3.1:
* orm + [orm] [bug] [ext] Fixed regression where an association proxy linked to a synonym would no longer work, both at instance level and at class level. References: #4522
* mssql + [mssql] [bug] A commit() is emitted after an isolation level change to SNAPSHOT, as both pyodbc and pymssql open an implicit transaction which blocks subsequent SQL from being emitted in the current transaction. References: #4536 + [mssql] [bug] Fixed regression in SQL Server reflection due to [#4393] where the removal of open-ended
*
*kw from the Float datatype caused reflection of this type to fail due to a “scale” argument being passed. References: #4525
* Wed Mar 06 2019 Tomáš Chvátal - Add patch to fix test failure from upstream test.patch
* Wed Mar 06 2019 Tomáš Chvátal - Update to versrion 1.3.0 (bsc#1124593, CVE-2019-7164, CVE-2019-7548):
* See https://docs.sqlalchemy.org/en/latest/changelog/migration_13.html for deprecation list with this version
* For the changes see https://docs.sqlalchemy.org/en/latest/changelog/changelog_13.html
* Fri Feb 22 2019 John Vandenberg - Re-add build dependency on python-devel, removed December 2018, used for optional C extensions cprocessors.so, cresultproxy.so and cutils.so.- update to v1.2.18 Bugfix releases, find details at https://docs.sqlalchemy.org/en/latest/changelog/changelog_12.html#change-1.2.18
* Thu Feb 21 2019 Adrian Schröter - version update to 1.2.17 https://docs.sqlalchemy.org/en/latest/changelog/changelog_12.html
* Sat Feb 09 2019 Adrian Schröter - update to version 1.2.16: Bugfix releases, find details at https://docs.sqlalchemy.org/en/latest/changelog/changelog_12.html#change-1.2.16 https://docs.sqlalchemy.org/en/latest/changelog/changelog_12.html#change-1.2.15- 1.2.16 includes the fix to maintain compiled_params / replacement_expressions within expanding IN (bsc#1176953)
* Tue Dec 04 2018 Matej Cepl - Remove superfluous devel dependency for noarch package
* Mon Nov 12 2018 Arun Persaud - 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 - 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 - 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 AATTdeclared_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 arunAATTgmx.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 arunAATTgmx.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 arunAATTgmx.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.vxAATTgmail.com- add upstream fix_test_reflection.patch to fix tests with new sqlite
* Thu Jun 21 2018 hpjAATTurpla.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 ”. 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
* Sat Apr 21 2018 arunAATTgmx.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 arunAATTgmx.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 AATTdeclared_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 arunAATTgmx.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 AATTAATTversion 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 arunAATTgmx.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 arunAATTgmx.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 arunAATTgmx.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 arunAATTgmx.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 ”, which seems to be not viable for at least two third party dialects.
* Wed Jan 03 2018 arunAATTgmx.de- specfile:
* updated test requirements
* Sun Dec 31 2017 arunAATTgmx.de- update to version 1.2.0:
* See https://docs.sqlalchemy.org/en/latest/changelog/changelog_12.html
* Mon Sep 25 2017 arunAATTgmx.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 tbechtoldAATTsuse.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 tbechtoldAATTsuse.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 toddrme2178AATTgmail.com- Don\'t provide python2-sqlalchemy, singlespec packages should use correct name.
* Mon May 01 2017 toddrme2178AATTgmail.com- Add literal python-sqlalchemy provides.
* Tue Apr 18 2017 toddrme2178AATTgmail.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 toddrme2178AATTgmail.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 dmuellerAATTsuse.com- fix source url
* Fri Jun 03 2016 tbechtoldAATTsuse.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 aplanasAATTsuse.com- Add 0001-fix-sqlite3.10.0-test.patch Backport fix after SQLite3.10 upgrade
* Mon Jan 11 2016 bwiedemannAATTsuse.com- update to 1.0.11:
* see http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.11
* Sun Oct 04 2015 tbechtoldAATTsuse.com- update to 1.0.8:
* see http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.8
* Mon Jun 15 2015 brunoAATTioda-net.ch- update to version 1.0.5:
* see http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.5
* Sun May 24 2015 brunoAATTioda-net.ch- update to 1.0.4: + see http://docs.sqlalchemy.org/en/latest/changelog/changelog_10.html#change-1.0.4 + see http://docs.sqlalchemy.org/en/latest/changelog/migration_10.html
* Wed Apr 22 2015 tbechtoldAATTsuse.com- update to 0.9.9: + See http://docs.sqlalchemy.org/en/latest/changelog/changelog_09.html#change-0.9.9
* Thu Jan 08 2015 tbechtoldAATTsuse.com- Update to version 0.9.8: + See http://docs.sqlalchemy.org/en/latest/changelog/changelog_09.html#change-0.9.8
* Fri Sep 12 2014 dmuellerAATTsuse.com- update to 0.9.7: + See http://docs.sqlalchemy.org/en/latest/changelog/changelog_09.html#change-0.9.7
* Wed Jul 02 2014 nevionAATTgmail.com-update to 0.9.6: + See http://docs.sqlalchemy.org/en/rel_0_9/changelog/changelog_09.html#change-0.9.6-Remove obsolete sqlalchemy-0.7-setup_test.patch-Add python-pytest dependency
* Tue Apr 08 2014 dmuellerAATTsuse.com- update to 0.8.6: + See http://docs.sqlalchemy.org/en/rel_0_9/changelog/changelog_08.html#change-0.8.6
* Wed Oct 30 2013 speilickeAATTsuse.com- Update to version 0.8.3: + See http://docs.sqlalchemy.org/en/latest/changelog/changelog_08.html#change-0.8.3- Drop outdated patches + SQLAlchemy-0.7.10-SLES-drop-failing-tests.patch + sqlalchemy-0.7-logging.patch
* Thu Oct 24 2013 speilickeAATTsuse.com- Require python-setuptools instead of distribute (upstreams merged)
* Thu Aug 01 2013 speilickeAATTsuse.com- Add SQLAlchemy-0.7.10-SLES-drop-failing-tests.patch: Cheat with dropping tests to fix testsuite on SLE-11
* Mon Jul 22 2013 berendtAATTb1-systems.de- fixing build requirement from python-sqlite to python-pysqlite
* Mon Jul 15 2013 hpjAATTurpla.net- apply patch to fix TypeError, when running python setup.py test
* Sun Jul 14 2013 hpjAATTurpla.net- add python-sqlite build dep for the test rig- apply a patch, that fixes TB of the test rig
* Fri Mar 08 2013 larsAATTlinux-schulserver.de- update to 0.7.10:
* orm + [bug] Fixed Session accounting bug whereby replacing a deleted object in the identity map with another object of the same primary key would raise a \"conflicting state\" error on rollback(), if the replaced primary key were established either via non-unitofwork-established INSERT statement or by primary key switch of another instance. [ticket:2583]
* oracle + [bug] changed the list of cx_oracle types that are excluded from the setinputsizes() step to only include STRING and UNICODE; CLOB and NCLOB are removed. This is to work around cx_oracle behavior which is broken for the executemany() call. In 0.8, this same change is applied however it is also configurable via the exclude_setinputsizes argument. [ticket:2561]
* mysql + [feature] Added \"raise_on_warnings\" flag to OurSQL dialect. [ticket:2523] + [feature] Added \"read_timeout\" flag to MySQLdb dialect. [ticket:2554]
* Wed Jan 02 2013 toddrme2178AATTgmail.com- Fix building on SLES
* Wed Dec 19 2012 saschpeAATTsuse.de- The doc package is noarch
* Fri Nov 02 2012 termimAATTgmail.com- do not require python-pysqlite package.- update to 0.7.9:
* orm - [bug] Fixed bug mostly local to new AbstractConcreteBase helper where the \"type\" attribute from the superclass would not be overridden on the subclass to produce the \"reserved for base\" error message, instead placing a do-nothing attribute there. This was inconsistent vs. using ConcreteBase as well as all the behavior of classical concrete mappings, where the \"type\" column from the polymorphic base would be explicitly disabled on subclasses, unless overridden explicitly. - [bug] A warning is emitted when lazy=\'dynamic\' is combined with uselist=False. This is an exception raise in 0.8. - [bug] Fixed bug whereby user error in related-object assignment could cause recursion overflow if the assignment triggered a backref of the same name as a bi-directional attribute on the incorrect class to the same target. An informative error is raised now. - [bug] Fixed bug where incorrect type information would be passed when the ORM would bind the \"version\" column, when using the \"version\" feature. Tests courtesy Daniel Miller. [ticket:2539] - [bug] Extra logic has been added to the \"flush\" that occurs within Session.commit(), such that the extra state added by an after_flush() or after_flush_postexec() hook is also flushed in a subsequent flush, before the \"commit\" completes. Subsequent calls to flush() will continue until the after_flush hooks stop adding new state. An \"overflow\" counter of 100 is also in place, in the event of a broken after_flush() hook adding new content each time. [ticket:2566]
* engine - [feature] Dramatic improvement in memory usage of the event system; instance-level collections are no longer created for a particular type of event until instance-level listeners are established for that event. [ticket:2516] - [bug] Fixed bug whereby a disconnect detect + dispose that occurs when the QueuePool has threads waiting for connections would leave those threads waiting for the duration of the timeout on the old pool (or indefinitely if timeout was disabled). The fix now notifies those waiters with a special exception case and has them move onto the new pool. [ticket:2522] - [bug] Added gaerdbms import to mysql/__init__.py, the absense of which was preventing the new GAE dialect from being loaded. [ticket:2529] - [bug] Fixed cextension bug whereby the \"ambiguous column error\" would fail to function properly if the given index were a Column object and not a string. Note there are still some column-targeting issues here which are fixed in 0.8. [ticket:2553] - [bug] Fixed the repr() of Enum to include the \"name\" and \"native_enum\" flags. Helps Alembic autogenerate.
* sql - [bug] Fixed the DropIndex construct to support an Index associated with a Table in a remote schema. [ticket:2571] - [bug] Fixed bug in over() construct whereby passing an empty list for either partition_by or order_by, as opposed to None, would fail to generate correctly. Courtesy Gunnlaugur Þór Briem. [ticket:2574] - [bug] Fixed CTE bug whereby positional bound parameters present in the CTEs themselves would corrupt the overall ordering of bound parameters. This primarily affected SQL Server as the platform with positional binds + CTE support. [ticket:2521] - [bug] Fixed more un-intuitivenesses in CTEs which prevented referring to a CTE in a union of itself without it being aliased. CTEs now render uniquely on name, rendering the outermost CTE of a given name only - all other references are rendered just as the name. This even includes other CTE/SELECTs that refer to different versions of the same CTE object, such as a SELECT or a UNION ALL of that SELECT. We are somewhat loosening the usual link between object identity and lexical identity in this case. A true name conflict between two unrelated CTEs now raises an error. - [bug] quoting is applied to the column names inside the WITH RECURSIVE clause of a common table expression according to the quoting rules for the originating Column. [ticket:2512] - [bug] Fixed regression introduced in 0.7.6 whereby the FROM list of a SELECT statement could be incorrect in certain \"clone+replace\" scenarios. [ticket:2518] - [bug] Fixed bug whereby usage of a UNION or similar inside of an embedded subquery would interfere with result-column targeting, in the case that a result-column had the same ultimate name as a name inside the embedded UNION. [ticket:2552] - [bug] Fixed a regression since 0.6 regarding result-row targeting. It should be possible to use a select() statement with string based columns in it, that is select([\'id\', \'name\']).select_from(\'mytable\'), and have this statement be targetable by Column objects with those names; this is the mechanism by which query(MyClass).from_statement(some_statement) works. At some point the specific case of using select([\'id\']), which is equivalent to select([literal_column(\'id\')]), stopped working here, so this has been re-instated and of course tested. [ticket:2558] - [bug] Added missing operators is_(), isnot() to the ColumnOperators base, so that these long-available operators are present as methods like all the other operators. [ticket:2544]
* postgresql - [bug] Columns in reflected primary key constraint are now returned in the order in which the constraint itself defines them, rather than how the table orders them. Courtesy Gunnlaugur Þór Briem.. [ticket:2531] - [bug] Added \'terminating connection\' to the list of messages we use to detect a disconnect with PG, which appears to be present in some versions when the server is restarted. [ticket:2570]
* mysql - [bug] Updated mysqlconnector interface to use updated \"client flag\" and \"charset\" APIs, courtesy David McNelis.
* sqlite - [feature] Added support for the localtimestamp() SQL function implemented in SQLite, courtesy Richard Mitchell. - [bug] Adjusted a very old bugfix which attempted to work around a SQLite issue that itself was \"fixed\" as of sqlite 3.6.14, regarding quotes surrounding a table name when using the \"foreign_key_list\" pragma. The fix has been adjusted to not interfere with quotes that are actually in the name of a column or table, to as much a degree as possible; sqlite still doesn\'t return the correct result for foreign_key_list() if the target table actually has quotes surrounding its name, as part of its name (i.e. \"\"\"mytable\"\"\"). [ticket:2568] - [bug] Adjusted column default reflection code to convert non-string values to string, to accommodate old SQLite versions that don\'t deliver default info as a string. [ticket:2265]
* mssql - [bug] Fixed compiler bug whereby using a correlated subquery within an ORDER BY would fail to render correctly if the stament also used LIMIT/OFFSET, due to mis-rendering within the ROW_NUMBER() OVER clause. Fix courtesy sayap [ticket:2538] - [bug] Fixed compiler bug whereby a given select() would be modified if it had an \"offset\" attribute, causing the construct to not compile correctly a second time. [ticket:2545] - [bug] Fixed bug where reflection of primary key constraint would double up columns if the same constraint/table existed in multiple schemas.- update to 0.7.8:
* orm - [feature] The \'objects\' argument to flush() is no longer deprecated, as some valid use cases have been identified. - [bug] Fixed bug whereby subqueryload() from a polymorphic mapping to a target would incur a new invocation of the query for each distinct class encountered in the polymorphic result. [ticket:2480] - [bug] Fixed bug in declarative whereby the precedence of columns in a joined-table, composite column (typically for id) would fail to be correct if the columns contained names distinct from their attribute names. This would cause things like primaryjoin conditions made against the entity attributes to be incorrect. Related to as this was supposed to be part of that, this is. [ticket:2491, 1892] - [bug] Fixed identity_key() function which was not accepting a scalar argument for the identity. . [ticket:2508] - [bug] Fixed bug whereby populate_existing option would not propagate to subquery eager loaders. . [ticket:2497]
* engine - [bug] Fixed memory leak in C version of result proxy whereby DBAPIs which don\'t deliver pure Python tuples for result rows would fail to decrement refcounts correctly. The most prominently affected DBAPI is pyodbc. [ticket:2489] - [bug] Fixed bug affecting Py3K whereby string positional parameters passed to engine/connection execute() would fail to be interpreted correctly, due to __iter__ being present on Py3K string.. [ticket:2503]
* sql - [bug] added BIGINT to types.__all__, BIGINT, BINARY, VARBINARY to sqlalchemy module namespace, plus test to ensure this breakage doesn\'t occur again. [ticket:2499] - [bug] Repaired common table expression rendering to function correctly when the SELECT statement contains UNION or other compound expressions, courtesy btbuilder. [ticket:2490] - [bug] Fixed bug whereby append_column() wouldn\'t function correctly on a cloned select() construct, courtesy Gunnlaugur Þór Briem. [ticket:2482]
* postgresql - [bug] removed unnecessary table clause when reflecting enums,. Courtesy Gunnlaugur Þór Briem. [ticket:2510]
* mysql - [feature] Added a new dialect for Google App Engine. Courtesy Richie Foreman. [ticket:2484]
* oracle - [bug] Added ROWID to oracle.
*. [ticket:2483]
* Wed May 23 2012 highwaystar.ruAATTgmail.com- python3 package added- removed BuildRequires update-desktop-files, because there is no desktop files in package- minor spec improvement
* Sun May 06 2012 larsAATTlinux-schulserver.de- update to 0.7.7:
* orm - [bug] Fixed issue in unit of work whereby setting a non-None self-referential many-to-one relationship to None would fail to persist the change if the former value was not already loaded. [ticket:2477]. - [feature] Added prefix_with() method to Query, calls upon select().prefix_with() to allow placement of MySQL SELECT directives in statements. Courtesy Diana Clarke [ticket:2443] - [bug] Fixed bug in 0.7.6 introduced by [ticket:2409] whereby column_mapped_collection used against columns that were mapped as joins or other indirect selectables would fail to function. - [feature] Added new flag to AATTvalidates include_removes. When True, collection remove and attribute del events will also be sent to the validation function, which accepts an additional argument \"is_remove\" when this flag is used. - [bug] Fixed bug whereby polymorphic_on column that\'s not otherwise mapped on the class would be incorrectly included in a merge() operation, raising an error. [ticket:2449] - [bug] Fixed bug in expression annotation mechanics which could lead to incorrect rendering of SELECT statements with aliases and joins, particularly when using column_property(). [ticket:2453] - [bug] Fixed bug which would prevent OrderingList from being pickleable [ticket:2454]. Courtesy Jeff Dairiki - [bug] Fixed bug in relationship comparisons whereby calling unimplemented methods like SomeClass.somerelationship.like() would produce a recursion overflow, instead of NotImplementedError.
* sql - [bug] Removed warning when Index is created with no columns; while this might not be what the user intended, it is a valid use case as an Index could be a placeholder for just an index of a certain name. - [feature] Added new connection event dbapi_error(). Is called for all DBAPI-level errors passing the original DBAPI exception before SQLAlchemy modifies the state of the cursor. \"with engine.begin()\", the newly acquired Connection is closed explicitly before propagating the exception onward normally. - [bug] Add BINARY, VARBINARY to types.__all__, [ticket:2474]
* mssql - [feature] Added interim create_engine flag supports_unicode_binds to PyODBC dialect, to force whether or not the dialect passes Python unicode literals to PyODBC or not. - [bug] Repaired the use_scope_identity create_engine() flag when using the pyodbc dialect. Previously this flag would be ignored if set to False. When set to False, you\'ll get \"SELECT AATTAATTidentity\" after each INSERT to get at the last inserted ID, for those tables which have \"implicit_returning\" set to False. - [bug] UPDATE..FROM syntax with SQL Server requires that the updated table be present in the FROM clause when an alias of that table is also present in the FROM clause. The updated table is now always present in the FROM, when FROM is present in the first place. Courtesy sayap. [ticket:2468]
* postgresql - [feature] Added new for_update/with_lockmode() options for Postgresql: for_update=\"read\"/ with_lockmode(\"read\"), for_update=\"read_nowait\"/ with_lockmode(\"read_nowait\"). These emit \"FOR SHARE\" and \"FOR SHARE NOWAIT\", respectively. Courtesy Diana Clarke [ticket:2445] - [bug] removed unnecessary table clause when reflecting domains, [ticket:2473]
* mysql - [bug] Fixed bug whereby column name inside of \"KEY\" clause for autoincrement composite column with InnoDB would double quote a name that\'s a reserved word. Courtesy Jeff Dairiki. [ticket:2460] - [bug] Fixed bug whereby get_view_names() for \"information_schema\" schema would fail to retrieve views marked as \"SYSTEM VIEW\". courtesy Matthew Turland. - [bug] Fixed bug whereby if cast() is used on a SQL expression whose type is not supported by cast() and therefore CAST isn\'t rendered by the dialect, the order of evaluation could change if the casted expression required that it be grouped; grouping is now applied to those expressions.
* sqlite - [feature] Added SQLite execution option \"sqlite_raw_colnames=True\", will bypass attempts to remove \".\" from column names returned by SQLite cursor.description. [ticket:2475]
* Mon Apr 30 2012 cfarrellAATTsuse.com- Update to 0.7.6
* orm - [bug] Fixed event registration bug which would primarily show up as events not being registered with sessionmaker() instances created after the event was associated with the Session class. [ticket:2424] - [bug] Fixed bug whereby a primaryjoin condition with a \"literal\" in it would raise an error on compile with certain kinds of deeply nested expressions which also needed to render the same bound parameter name more than once. [ticket:2425] - [feature] Added \"no_autoflush\" context manager to Session, used with with: will temporarily disable autoflush. - [feature] Added cte() method to Query, invokes common table expression support from the Core (see below). [ticket:1859] - [bug] Removed the check for number of rows affected when doing a multi-delete against mapped objects. If an ON DELETE CASCADE exists between two rows, we can\'t get an accurate rowcount from the DBAPI; this particular count is not supported on most DBAPIs in any case, MySQLdb is the notable case where it is. [ticket:2403] - [bug] Fixed bug whereby objects using attribute_mapped_collection or column_mapped_collection could not be pickled. [ticket:2409] - [bug] Fixed bug whereby MappedCollection would not get the appropriate collection instrumentation if it were only used in a custom subclass that used AATTcollection.internally_instrumented. [ticket:2406] - [bug] Fixed bug whereby SQL adaption mechanics would fail in a very nested scenario involving joined-inheritance, joinedload(), limit(), and a derived function in the columns clause. [ticket:2419] - [bug] Fixed the repr() for CascadeOptions to include refresh-expire. Also reworked CascadeOptions to be a . [ticket:2417] - [feature] Added the ability to query for Table-bound column names when using query(sometable).filter_by(colname=value). [ticket:2400] - [bug] Improved the \"declarative reflection\" example to support single-table inheritance, multiple calls to prepare(), tables that are present in alternate schemas, establishing only a subset of classes as reflected. - [bug] Scaled back the test applied within flush() to check for UPDATE against partially NULL PK within one table to only actually happen if there\'s really an UPDATE to occur. [ticket:2390] - [bug] Fixed bug whereby if a method name conflicted with a column name, a TypeError would be raised when the mapper tried to inspect the __get__() method on the method object. [ticket:2352]
* sql - [bug] Fixed memory leak in core which would occur when C extensions were used with particular types of result fetches, in particular when orm query.count() were called. [ticket:2427] - [bug] Fixed issue whereby attribute-based column access on a row would raise AttributeError with non-C version, NoSuchColumnError with C version. Now raises AttributeError in both cases. [ticket:2398] - [feature] Added support for SQL standard common table expressions (CTE), allowing SELECT objects as the CTE source (DML not yet supported). This is invoked via the cte() method on any select() construct. [ticket:1859] - [bug] Added support for using the .key of a Column as a string identifier in a result set row. The .key is currently listed as an \"alternate\" name for a column, and is superseded by the name of a column which has that key value as its regular name. For the next major release of SQLAlchemy we may reverse this precedence so that .key takes precedence, but this is not decided on yet. [ticket:2392] - [bug] A warning is emitted when a not-present column is stated in the values() clause of an insert() or update() construct. Will move to an exception in 0.8. [ticket:2413] - [bug] A significant change to how labeling is applied to columns in SELECT statements allows \"truncated\" labels, that is label names that are generated in Python which exceed the maximum identifier length (note this is configurable via label_length on create_engine()), to be properly referenced when rendered inside of a subquery, as well as to be present in a result set row using their original in-Python names. [ticket:2396] - [bug] Fixed bug in new \"autoload_replace\" flag which would fail to preserve the primary key constraint of the reflected table. [ticket:2402] - [bug] Index will raise when arguments passed cannot be interpreted as columns or expressions. Will warn when Index is created with no columns at all. [ticket:2380]
* engine - [feature] Added \"no_parameters=True\" execution option for connections. If no parameters are present, will pass the statement as cursor.execute(statement), thereby invoking the DBAPIs behavior when no parameter collection is present; for psycopg2 and mysql-python, this means not interpreting % signs in the string. This only occurs with this option, and not just if the param list is blank, as otherwise this would produce inconsistent behavior of SQL expressions that normally escape percent signs (and while compiling, can\'t know ahead of time if parameters will be present in some cases). [ticket:2407] - [bug] Added execution_options() call to MockConnection (i.e., that used with strategy=\"mock\") which acts as a pass through for arguments. - [feature] Added pool_reset_on_return argument to create_engine, allows control over \"connection return\" behavior. Also added new arguments \'rollback\', \'commit\', None to pool.reset_on_return to allow more control over connection return activity. [ticket:2378] - [feature] Added some decent context managers to Engine, Connection: with engine.begin() as conn: and: with engine.connect() as conn: Both close out the connection when done, commit or rollback transaction with errors on engine.begin().
* sqlite - [bug] Fixed bug in C extensions whereby string format would not be applied to a Numeric value returned as integer; this affected primarily SQLite which does not maintain numeric scale settings. [ticket:2432]
* mssql - [feature] Added support for MSSQL INSERT, UPDATE, and DELETE table hints, using new with_hint() method on UpdateBase. [ticket:2430]
* mysql - [feature] Added support for MySQL index and primary key constraint types (i.e. USING) via new mysql_using parameter to Index and PrimaryKeyConstraint, courtesy Diana Clarke. [ticket:2386] - [feature] Added support for the \"isolation_level\" parameter to all MySQL dialects. Thanks to mu_mind for the patch here. [ticket:2394]
* oracle - [feature] Added a new create_engine() flag coerce_to_decimal=False, disables the precision numeric handling which can add lots of overhead by converting all numeric values to Decimal. [ticket:2399] - [bug] Added missing compilation support for LONG [ticket:2401] - [bug] Added \'LEVEL\' to the list of reserved words for Oracle. [ticket:2435]
* examples - [bug] Altered _params_from_query() function in Beaker example to pull bindparams from the fully compiled statement, as a quick means to get everything including subqueries in the columns clause, etc.
* Wed Feb 22 2012 saschpeAATTsuse.de- Fixed SLE_11 build by disabling the testsuite for it
* Thu Feb 09 2012 rhaferAATTsuse.de- Update to 0.7.5:
* Fixed issue where modified session state established after a failed flush would be committed as part of the subsequent transaction that begins automatically after manual call to rollback().
* Improved the API for add_column() such that if the same column is added to its own table, an error is not raised and the constraints don\'t get doubled up.
* Fixed issue where the \"required\" exception would not be raised for bindparam() with required=True, if the statement were given no parameters at all.
* for more details see the CHANGES file.
* Thu Nov 10 2011 saschpeAATTsuse.de- Add depenendency on pysqlite
* Wed Sep 21 2011 saschpeAATTsuse.de- Update to version 0.7.2:
* A rework of \"replacement traversal\"
* Fixed bug where query.join() + aliased=True
* Fixed regression from 0.6 where Session.add() against an object which contained None - See CHANGES for more...- Run testsuite
* Wed Jul 20 2011 saschpeAATTgmx.de- Let doc package require base package instead of recommends
* Wed Jul 20 2011 saschpeAATTgmx.de- Dropped unused BuildRequires for fdupes and python-sqlite2
* Wed Jul 20 2011 saschpeAATTgmx.de- Initial version, replaces python-sqlalchemy
* Much simpler spec file
* Packaged LICENSE, CHANGES and README files