- Update to version 0.5.0
+ added version_table_schema argument to EnvironmentContext.configure(),
complements the version_table argument to set an optional remote schema
for the version table.
+ added output_encoding option to EnvironmentContext.configure(), used with --sql
mode to apply an encoding to the output stream.
+ added Operations.create_primary_key() operation, will genenerate an
ADD CONSTRAINT for a primary key.
+ upgrade and downgrade commands will list the first line of the docstring
out next to the version number.
+ added –head-only option to “alembic current”, will print current version
plus the symbol “(head)” if this version is the head or not.
+ the rendering of any construct during autogenerate can be customized, in particular
to allow special rendering for user-defined column, constraint subclasses, using new render
_item argument to EnvironmentContext.configure().
+ fix format of RENAME for table that includes schema with Postgresql; the
schema name shouldn’t be in the “TO” field.
+ fix bug whereby double quoting would be applied to target column name during an sp_rename operation.
+ fix transactional_ddl flag for SQLite, MySQL dialects set to False. MySQL doesn’t support it,
SQLite does but current pysqlite driver does not.
+ fix Autogenerate will render additional table keyword arguments like “mysql_engine” and
others within op.create_table().
+ fix bug whereby create_index() would include in the constraint columns that are added
to all Table objects using events, externally to the generation of the constraint.
This is the same issue that was fixed for unique constraints in version 0.3.2.
+ fix worked around a backwards-incompatible regression in Python3.3 regarding argparse;
running “alembic” with no arguments now yields an informative error in py3.3 as with
all previous versions.
+ fix host of argument name changes within migration operations for consistency. Keyword
arguments will continue to work on the old name for backwards compatibility, however required