Changelog for python2-SQLAlchemy-1.3.8-lp151.1.2.x86_64.rpm :

* 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
* 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