v0.4.0

Added

• Support for JSON data format, including pw.Json type.
• Methods as_int(), as_float(), as_str(), as_bool() to convert values from Json.

Changed

• Method get() and [] to support accessing elements in Jsons.
• Function pw.assert_table_has_schema for writing asserts checking, whether given table has the same schema as the one that is given as an argument.
• BREAKING: ix and ix_ref operations are now standalone transformations of pw.Table into pw.Table. Most of the usages remain the same, but sometimes user needs to provide a context (when e.g. using them inside join or groupby operations). ix and ix_ref are temporarily broken inside temporal joins.

Fixed

• Fixed a bug where new-style optional types (e.g. int | None) were translated to Any dtype.