v0.5.0

Added

• Schema method typehints that returns dict of mypy-compatible typehints.
• Support for JSON parsing from CSV sources.
• restrict method in Table to restrict table universe to the universe of the other table.
• Better support for postgresql types in the output connector.

Changed

• BREAKING: tuple reducer used after intervals_over window now sorts values by time.
• BREAKING: expressions used in select, filter, flatten, with_columns, with_id, with_id_from have to have the same universe as the table. Earlier it was possible to use an expression from a superset of a table universe. To use expressions from wider universes, one can use restrict on the expression source table.
• BREAKING: pw.universes.promise_are_equal(t1, t2) no longer allows to use references from t1 and t2 in a single expression. To change the universe of a table, use with_universe_of.
• BREAKING: ix and ix_ref are temporarily broken inside joins (both temporal and ordinary).
• select, filter, concat keep columns as a single stream. The work for other operators is ongoing.
• BREAKING: renamed Table method dtypes to typehints. It now returns a dict of mypy-compatible typehints.
• BREAKING: Schema.__getitem__ returns a data class ColumnSchema containing all related information on particular column.

Fixed

• Optional types other than string correctly output to PostgreSQL.