.. changelog::
:version: 1.3.18
- :include_notes_from: unreleased_13
+ :released: June 25, 2020
+
+ .. change::
+ :tags: bug, sqlite
+ :tickets: 5395
+
+ 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.
+
+ .. change::
+ :tags: bug, mssql
+ :tickets: 5366, 5364
+
+ 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.
+
+
+
+ .. change::
+ :tags: bug, mssql, pyodbc
+ :tickets: 5346
+
+ 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.
+
+ .. change::
+ :tags: bug, mssql
+ :tickets: 5373
+
+ 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.
+
+ .. change::
+ :tags: usecase, orm
+ :tickets: 5326
+
+ Improve error message when using :meth:`_query.Query.filter_by` in
+ a query where the first entity is not a mapped class.
+
+ .. change::
+ :tags: sql, schema
+ :tickets: 5324
+
+ Introduce :class:`.IdentityOptions` to store common parameters for
+ sequences and identity columns.
+
+ .. change::
+ :tags: usecase, sql
+ :tickets: 5309
+
+ Added a ".schema" parameter to the :func:`_expression.table` construct,
+ allowing ad-hoc table expressions to also include a schema name.
+ Pull request courtesy Dylan Modesitt.
+
+ .. change::
+ :tags: bug, mssql
+ :tickets: 5339
+
+ Fixed issue where ``datetime.time`` parameters were being converted to
+ ``datetime.datetime``, making them incompatible with comparisons like
+ ``>=`` against an actual :class:`_mssql.TIME` column.
+
+ .. change::
+ :tags: bug, mssql
+ :tickets: 5359
+
+ 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.
+
+ .. change::
+ :tags: bug, engine
+ :tickets: 5326
+
+ Further refinements to the fixes to the "reset" agent fixed in
+ :ticket:`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.
+
+
+ .. change::
+ :tags: usecase, sqlite
+ :tickets: 5297
+
+ SQLite 3.31 added support for computed column. This change
+ enables their support in SQLAlchemy when targeting SQLite.
+
+ .. change::
+ :tags: bug, schema
+ :tickets: 5276
+
+ Fixed issue where ``dialect_options`` were omitted when a
+ database object (e.g., :class:`.Table`) was copied using
+ :func:`.tometadata`.
+
+ .. change::
+ :tags: bug, sql
+ :tickets: 5344
+
+ Correctly apply self_group in type_coerce element.
+
+ The type coerce element did not correctly apply grouping rules when using
+ in an expression
+
+ .. change::
+ :tags: bug, oracle, reflection
+ :tickets: 5421
+
+ 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.
+
+ .. change::
+ :tags: change, sql, sybase
+ :tickets: 5294
+
+ Added ``.offset`` support to sybase dialect.
+ Pull request courtesy Alan D. Snow.
+
+ .. change::
+ :tags: bug, engine
+ :tickets: 5341
+
+ Fixed issue in :class:`.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.
+
+ .. change::
+ :tags: usecase, mysql
+ :tickets: 4860
+
+ Implemented row-level locking support for mysql. Pull request courtesy
+ Quentin Somerville.
+
+ .. change::
+ :tags: change, mssql
+ :tickets: 5321
+
+ Moved the ``supports_sane_rowcount_returning = False`` requirement from
+ the ``PyODBCConnector`` level to the ``MSDialect_pyodbc`` since pyodbc
+ does work properly in some circumstances.
+
+ .. change::
+ :tags: change, examples
+
+ 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;
+
+ .. change::
+ :tags: bug, sql
+ :tickets: 5353
+
+ Added :meth:`.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.
+
+
+ .. change::
+ :tags: usecase, orm
+ :tickets: 5198
+
+ Added a new parameter :paramref:`_orm.query_expression.default_expr` to the
+ :func:`_orm.query_expression` construct, which will be appled to queries
+ automatically if the :func:`_orm.with_expression` option is not used. Pull
+ request courtesy Haoyu Sun.
.. changelog::
:version: 1.3.17
projects / thirdparty / sqlalchemy / sqlalchemy.git / commitdiff
