The new version of DolphinDB V2.00.10&V1.30.22 will meet you soon!
The new version includes various updates such as VS Code Debug, plug-in online download, TopN series functions, SQL standard compatibility improvement, as well as performance optimization of TSDB engine, stream computing, and various computing functions.
In the previous new version, we also provided you with important functions such as asynchronous replication and trading calendar.
In order to help you use DolphinDB better and understand our future version planning, we will hold a live broadcast on July 20 (this Thursday) at 7:30 p.m. to watch the important functions of DolphinDB's recent updates, and get to know the latest version of V2.00.10&V1.30.22 first ! Everyone is welcome to participate~
Live time
Thursday, July 20, 19:30-21:00
Speaker
Hu Jinming, Deputy Director of R&D of DolphinDB
Hu Jinming, deputy director of DolphinDB R&D, graduated from Zhejiang University with a master's degree in computer science. His research direction is machine learning. He was engaged in the research and development of programmatic trading strategies and high-frequency trading low-latency systems in Optiver (Shanghai). He was engaged in the development of machine learning systems in Google Beijing. He has a deep understanding and practice of machine learning and high-performance systems. He has published many papers in top machine learning conferences and journals in recent years.
During the live broadcast you will learn about...
1. Asynchronous replication
It supports copying the data of the master cluster to the slave cluster, and ensures that the data of the master and slave clusters are consistent, realizing remote disaster recovery of the cluster. Convenient operation and maintenance, providing online monitoring function and error repair function.
2. Multi-table join
Improved distributed multi-table join, expanded join column support functions, distributed join supports on statement.
3. Trading Calendar
Provides trading calendars of major exchanges at home and abroad and user-defined trading calendar functions, supports calculations in the functions temporalAdd, resample, asfreq, and transFreq, and the getMarketCalendar function can easily obtain all trading calendars within the desired date.
4. Decimal
Expanded support for DECIMAL128 type, and added support for the multiplication function decimalMultiply of DECIMAL type, which can specify the precision of calculation results; fully supports DECIMAL type in stream computing.
5. movingTopN
Expanded series of function support, added 26 TopN-related window functions, including 2 moving TopN functions, 12 cum TopN functions, and 12 time-moving TopN functions; added support for summary functions.
6. TSDB performance optimization
Optimize performance when using TSDB engine where for conditional filtering and table connection; TSDB engine uses a new storage structure when writing data, which reduces the number of internal data blocks (blocks), thereby reducing memory usage.
……
How to watch?
This live broadcast will be held on the DolphinDB video account, go to the homepage of the DolphinDB official account, and make an appointment for the live broadcast immediately!
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