Bump alembic from 1.3.1 to 1.4.2

[dependabot-preview[bot]]

Bumps alembic from 1.3.1 to 1.4.2.

Release notes

Sourced from alembic's releases.

1.4.2

Released: March 19, 2020

bug

• [bug] [tests] Fixed an issue that prevented the test suite from running with the recently released py.test 5.4.0.

  References: #668

• [bug] [autogenerate] [mysql] Fixed more false-positive failures produced by the new "compare type" logic first added in #605, particularly impacting MySQL string types regarding flags such as "charset" and "collation".

  References: #617

• [bug] [op directives] [oracle] Fixed issue in Oracle backend where a table RENAME with a schema-qualified name would include the schema in the "to" portion, which is rejected by Oracle.

  References: #670

usecase

• [usecase] [autogenerate] Adjusted autogen comparison to accommodate for backends that support computed column reflection, dependent on SQLAlchemy version 1.3.16 or higher. This emits a warning if the SQL expression inside of a Computed value changes between the metadata and the database, as these expressions can't be changed without dropping and recreating the column.

  References: #669

1.4.1

Released: March 1, 2020

bug

• [bug] [autogenerate] Fixed regression caused by the new "type comparison" logic introduced in 1.4 as part of #605 where comparisons of MySQL "unsigned integer" datatypes would produce false positives, as the regular expression logic was not correctly parsing the "unsigned" token when MySQL's default display width would be returned by the database. Pull request courtesy Paul Becotte.

... (truncated)

Commits

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[dependabot-preview[bot]]

Superseded by #217.