3.0.2

New Features

• Added support for Python 3.12.

• Introduced the Logger package, which allows logging information and print outputs to be directed to a specified location.

• The MultithreadedTableWriter now includes a reconnect parameter, which controls automatic reconnection if the network connection is interrupted during writing.

Improvements

• The resubTimeout parameter in subscribe has been renamed to resubscribeInterval.

Bug Fixes

• Decimal data upload behavior has been standardized to rounding.
• Fixed write performance degradation in the tableInsert and MultithreadedTableWriter, introduced in version 3.0.2.1.
• Fixed an issue where nodes in high-availability mode failed to switch properly.

New Features

• Added the io module with serialization and deserialization functions (dump, load, dumps, loads).

Improvements

• Enhanced error message clarity.

Bug Fixes

• When using the PROTOCOL_DDB protocol, the DolphinDB BLOB type is now correctly mapped to bytes in Python, instead of str.

Improvements

• Enhanced parameter validation for methods such as Session.run.
• Added tryReconnectNums parameter to Session.connect method and DBConnectionPool constructor to set reconnection attempts.
• Added sqlStd parameter to Session and DBConnectionPool constructors to specify server-side SQL dialect.
• Changed default protocol in Session and DBConnectionPool constructors from PROTOCOL_PICKLE to PROTOCOL_DDB.
• When uploading a pandas.DataFrame, columns of string[pyarrow] type can now be specified as SYMBOL type.
• Added new parameters readTimeout and writeTimeout to Session.connect to specify API read and write timeouts.