db5e194014
1.7.7 bug [bug] [operations] Fixed issue where using Operations.create_table() in conjunction with a CheckConstraint that referred to table-bound Column objects rather than string expressions would be added to the parent table potentially multiple times, resulting in an incorrect DDL sequence. Pull request courtesy Nicolas CANIART. [bug] [environment] The logging.fileConfig() line in env.py templates, which is used to setup Python logging for the migration run, is now conditional on Config.config_file_name not being None. Otherwise, the line is skipped as there is no default logging configuration present. [bug] [mssql] Fixed bug where an Operations.alter_column() operation would change a “NOT NULL” column to “NULL” by emitting an ALTER COLUMN statement that did not specify “NOT NULL”. (In the absence of “NOT NULL” T-SQL was implicitly assuming “NULL”). An Operations.alter_column() operation that specifies Operations.alter_column.type should also specify include either Operations.alter_column.nullable or Operations.alter_column.existing_nullable to inform Alembic as to whether the emitted DDL should include “NULL” or “NOT NULL”; a warning is now emitted if this is missing under this scenario. 1.7.6 usecase [usecase] [commands] Add a new command alembic ensure_version, which will ensure that the Alembic version table is present in the target database, but does not alter its contents. Pull request courtesy Kai Mueller. bug [bug] [batch] [regression] Fixed regression where usage of a with_variant() datatype in conjunction with the existing_type option of op.alter_column() under batch mode would lead to an internal exception. [bug] [autogenerate] Implemented support for recognizing and rendering SQLAlchemy “variant” types going forward into SQLAlchemy 2.0, where the architecture of “variant” datatypes will be changing. [bug] [autogenerate] [mysql] Added a rule to the MySQL impl so that the translation between JSON / LONGTEXT is accommodated by autogenerate, treating LONGTEXT from the server as equivalent to an existing JSON in the model. misc [mssql] Removed a warning raised by SQLAlchemy when dropping constraints on MSSQL regarding statement caching. |
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