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* Emit v2.0 deprecation warning for "implicit autocommit"Gord Thompson2020-08-281-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | "Implicit autocommit", which is the COMMIT that occurs when a DML or DDL statement is emitted on a connection, is deprecated and won't be part of SQLAlchemy 2.0. A 2.0-style warning is emitted when autocommit takes effect, so that the calling code may be adjusted to use an explicit transaction. As part of this change, DDL methods such as :meth:`_schema.MetaData.create_all` when used against a :class:`_engine.Engine` or :class:`_engine.Connection` will run the operation in a BEGIN block if one is not started already. The MySQL and MariaDB dialects now query from the information_schema.tables system view in order to determine if a particular table exists or not. Previously, the "DESCRIBE" command was used with an exception catch to detect non-existent, which would have the undesirable effect of emitting a ROLLBACK on the connection. There appeared to be legacy encoding issues which prevented the use of "SHOW TABLES", for this, but as MySQL support is now at 5.0.2 or above due to :ticket:`4189`, the information_schema tables are now available in all cases. Fixes: #4846 Change-Id: I733a7e0e17477a63607fb9931c87c393bbd7ac57
* Bump minimum MySQL version to 5.0.2; use all-numeric server versionMike Bayer2020-08-161-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MySQL dialect's server_version_info tuple is now all numeric. String tokens like "MariaDB" are no longer present so that numeric comparison works in all cases. The .is_mariadb flag on the dialect should be consulted for whether or not mariadb was detected. Additionally removed structures meant to support extremely old MySQL versions 3.x and 4.x; the minimum MySQL version supported is now version 5.0.2. In addition, as the "MariaDB" name goes away from server version, expand upon the change in I330815ebe572b6a9818377da56621397335fa702 to support the name "mariadb" throughout the dialect and test suite when mariadb-only mode is used. This changes the "name" field on the MariaDB dialect to "mariadb", which then implies a change throughout the testing requirements system as well as all the dialect-specific DDL argument names such as "mysql_engine" is now specified as "mariadb_engine", etc. Make use of the recent additions to test suite URL provisioning so that we can force MariaDB databases to have a "mariadb-only" dialect which allows us to test this name change fully. Update documentation to refer to MySQL / MariaDB explicitly as well as indicating the "mariadb_" prefix used for options. It seems likely that MySQL and MariaDB version numbers are going to start colliding at some point so having the "mariadb" name be available as a totally separate dialect name should give us some options in this regard. Currently also includes a date related fix to a test for the postgresql dialect that was implicitly assuming a non-UTC timezone Fixes: #4189 Change-Id: I00e76d00f62971e1f067bd61915fa6cc1cf64e5e
* happy new yearMike Bayer2020-01-011-1/+1
| | | | Change-Id: I08440dc25e40ea1ccea1778f6ee9e28a00808235
* Fix many spell glitchesLele Gaifax2019-01-251-1/+1
| | | | | | | | | | | | This affects mostly docstrings, except in orm/events.py::dispose_collection() where one parameter gets renamed: given that the method is empty, it seemed reasonable to me to fix that too. Closes: #4440 Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/4440 Pull-request-sha: 779ed75acb6142e1f1daac467b5b14134529bb4b Change-Id: Ic0553fe97853054b09c2453af76d96363de6eb0e
* happy new yearMike Bayer2019-01-111-1/+1
| | | | Change-Id: I6a71f4924d046cf306961c58dffccf21e9c03911
* Post black reformattingMike Bayer2019-01-061-3/+5
| | | | | | | | | | | | | Applied on top of a pure run of black -l 79 in I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9, this set of changes resolves all remaining flake8 conditions for those codes we have enabled in setup.cfg. Included are resolutions for all remaining flake8 issues including shadowed builtins, long lines, import order, unused imports, duplicate imports, and docstring issues. Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe
* Run black -l 79 against all source filesMike Bayer2019-01-061-27/+41
| | | | | | | | | | | | | | This is a straight reformat run using black as is, with no edits applied at all. The black run will format code consistently, however in some cases that are prevalent in SQLAlchemy code it produces too-long lines. The too-long lines will be resolved in the following commit that will resolve all remaining flake8 issues including shadowed builtins, long lines, import order, unused imports, duplicate imports, and docstring issues. Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9
* Use utf8mb4 (or utf8mb3) for all things MySQLMike Bayer2018-06-251-1/+2
| | | | | | | | | | | | | | | | | 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. Change-Id: Ib596ea7de4f69f976872a33bffa4c902d17dea25 Fixes: #4283 Fixes: #4192
* happy new yearMike Bayer2018-01-121-1/+1
| | | | Change-Id: I3ef36bfd0cb0ba62b3123c8cf92370a43156cf8f
* New features from python 2.7Катаев Денис2017-03-171-4/+2
| | | | | | | After bump minimum supported version to 2.7 (1da9d3752160430c91534a8868ceb8c5ad1451d4), we can use new syntax. Change-Id: Ib064c75a00562e641d132f9c57e5e69744200e05 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/347
* update for 2017 copyrightMike Bayer2017-01-041-1/+1
| | | | Change-Id: I4e8c2aa8fe817bb2af8707410fa0201f938781de
* - happy new yearMike Bayer2016-01-291-1/+1
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* - The system by which a :class:`.Column` considers itself to be anMike Bayer2015-10-071-1/+4
| | | | | | | | | | | | | | | | | "auto increment" column has been changed, such that autoincrement is no longer implicitly enabled for a :class:`.Table` that has a composite primary key. In order to accommodate being able to enable autoincrement for a composite PK member column while at the same time maintaining SQLAlchemy's long standing behavior of enabling implicit autoincrement for a single integer primary key, a third state has been added to the :paramref:`.Column.autoincrement` parameter ``"auto"``, which is now the default. fixes #3216 - The MySQL dialect no longer generates an extra "KEY" directive when generating CREATE TABLE DDL for a table using InnoDB with a composite primary key with AUTO_INCREMENT on a column that isn't the first column; to overcome InnoDB's limitation here, the PRIMARY KEY constraint is now generated with the AUTO_INCREMENT column placed first in the list of columns.
* - copyright 2015Mike Bayer2015-03-101-1/+1
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* - rework the exclusions system to have much better support for compoundMike Bayer2014-07-261-1/+1
| | | | rules, better message formatting
* - apply pep8 formatting to sqlalchemy/sql, sqlalchemy/util, sqlalchemy/dialects,Brian Jarrett2014-07-201-6/+3
| | | | sqlalchemy/orm, sqlalchemy/event, sqlalchemy/testing
* - break up the <authors> copyright comment as part of a passMike Bayer2014-07-091-1/+2
| | | | to get all flake8 passing
* - Support has been added for pytest to run tests. This runnerMike Bayer2014-03-031-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | is currently being supported in addition to nose, and will likely be preferred to nose going forward. The nose plugin system used by SQLAlchemy has been split out so that it works under pytest as well. There are no plans to drop support for nose at the moment and we hope that the test suite itself can continue to remain as agnostic of testing platform as possible. See the file README.unittests.rst for updated information on running tests with pytest. The test plugin system has also been enhanced to support running tests against mutiple database URLs at once, by specifying the ``--db`` and/or ``--dburi`` flags multiple times. This does not run the entire test suite for each database, but instead allows test cases that are specific to certain backends make use of that backend as the test is run. When using pytest as the test runner, the system will also run specific test suites multiple times, once for each database, particularly those tests within the "dialect suite". The plan is that the enhanced system will also be used by Alembic, and allow Alembic to run migration operation tests against multiple backends in one run, including third-party backends not included within Alembic itself. Third party dialects and extensions are also encouraged to standardize on SQLAlchemy's test suite as a basis; see the file README.dialects.rst for background on building out from SQLAlchemy's test platform.
* - happy new yearMike Bayer2014-01-051-1/+1
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* - add copyright to source files missing itMike Bayer2013-10-261-0/+5
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* a pass where we try to squash down as many list()/keys() combinationsMike Bayer2013-05-261-2/+2
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* - the raw 2to3 runMike Bayer2013-04-271-2/+2
| | | | - went through examples/ and cleaned out excess list() calls
* - add an event to testing so that other dialects can intercept ↵Mike Bayer2013-03-241-9/+18
| | | | | | "test_needs_autoincrement" - get the assumption of "1" for "first sequence item" to be dialect configured
* just a pep8 pass of lib/sqlalchemy/testing/Diana Clarke2012-11-191-1/+2
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* - requirementsMike Bayer2012-10-031-0/+3
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* - more tests, move some tests out of test_reflection, test_queryMike Bayer2012-09-271-4/+1
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* trying different approaches to test layout. in this one, the testing modulesMike Bayer2012-09-271-0/+85
become an externally usable package but still remains within the main sqlalchemy parent package. in this system, we use kind of an ugly hack to get the noseplugin imported outside of the "sqlalchemy" package, while still making it available within sqlalchemy for usage by third party libraries.
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