Changelog

v2.0.0

Major release - Full database abstraction layer.

New features:

• DatabaseBackend ABC - all 6 backends implement the same interface

• Real typed tables with create_table(), get_tables(), get_schema()

• Column types: Integer, Text, Float, Boolean, Blob, Timestamp, JSON, Pickle

• Chainable Query class with filter(), order_by(), select(), limit(), offset()

• Django-style filter operators: __gt, __gte, __lt, __lte, __ne, __contains, __startswith, __endswith, __like, __in, __notin, __isnull

• first(), one(), count(), exists() query methods

• Backend-level pickle serialization via serialization="pickle"

• InMemoryQuery for non-SQL backends (JSON, Pickle, Redis, Mongo)

• Blob column type auto-pickles non-bytes values

• TableSchema with constraints, validation, and SQL generation

• Sphinx documentation with Furo theme

Backward compatibility:

• SQLiteDatabase, JSONFileDatabase, PickleFileDatabase still support the key-value API

• ConnectionError renamed to DatabaseConnectionError (alias kept)

v1.0.0

Initial release:

• Key-value store API (write, read, delete, exists, clear, keys)

• SQLite, PostgreSQL, JSON file, Pickle file, Redis, MongoDB backends

• JSON serialization with binary fallback