DolphinDB Release Notes

Release Date : 2019-03-18

Version : 0.93.4

DolphinDB Server

Linux binary | Windows binary

New Features

• Add functions "getAggregatorStat, "getAggregator" and "removeAggregator" for streaming aggregator management.

Improvements

• Optimize the performance of SQL statements with "pivot by" clause.
• Add published streaming tables to the output of function "getStreamingStat".

Bug fixes and sub releases

• Fixed the specical characters ('"', '+', etc) handling issue when parsing data with Grafana API. (2019-03-18 0.93.4)
• Fixed a bug that the DolphinDB process may crash when multiple sessions open the same dfs-based database and assign this database object to a variable (2019-03-13 0.93.3 Linux binary | Windows binary)
• Fixed a bug of SQL statement with "pivot by" clause. With a large pivoting table (with more than millions of rows), the DolphinDB process may crash due to a bug on big array sorting. (2019-03-11 0.93.2 Linux binary | Windows binary)
• Fixed a bug of nested query on partitioned table join. If one of the table objects to join is a subquery on a distributed table, the query will cause crash. (2019-03-05 0.93.1 Linux binary | Windows binary)

DolphinDB APIs

• Add C++ API for streaming.

DolphinDB Plugin

• Updated plugin header files

  DolphinDBPlugin

• Updated plugin binary files

  DolphinDB AWS S3 Plugin

  DolphinDB ZLIB Plugin

  DolphinDB HDF5 Plugin

  DolphinDB MYSQL Plugin

  DolphinDB ODBC Plugin