That's really a good news On Mon, Feb 17, 2025 at 4:10 PM Haonan Hou <hao...@apache.org> wrote:
> The Apache IoTDB team is pleased to announce the release of Apache IoTDB > 2.0.1-beta. > > Apache IoTDB (Database for Internet of Things) is an IoT native database > with high performance for data management and analysis, deployable on the > edge and the cloud. > > ## Features & Improvements > > - Table Model: IoTDB has introduced a new model named table model, and > supports standard SQL query syntax, including SELECT, WHERE, JOIN, GROUP > BY, ORDER BY, LIMIT clause and subQuery. > - Data Query: The table model supports a variety of functions and > operators, including logical operators, mathematical functions, and the > time-series specific function DIFF, etc. > - Data Query: The databases of the table model and tree model are > invisible to each other, and users can choose the appropriate model based > on their needs. > - Data Query: Users can control the loading of UDF, PipePlugin, Trigger, > and AINode via URI with configuration items to load JAR packages. > - Storage Engine: The table model supports data ingestion through the > Session interface, and the Session interface supports automatic metadata > creation. > - Storage Engine: The Python client now supports four new data types: > String, Blob, Date, and Timestamp. > - Storage Engine: The comparison rules for the priority of same-type merge > tasks have been optimized. > - Data Synchronization: Support for specifying authentication information > of the receiving end at the sending end. > - Stream Processing Module: TsFile Load now supports the table model. > - Stream Processing Module: Pipe now supports the table model. > - System Management: The Benchmark tool has been adapted to support the > table model. > - System Management: The Benchmark tool now supports four new data types: > String, Blob, Date, and Timestamp. > - System Management: The stability of DataNode scaling down has been > enhanced. > - System Management: Users are now allowed to perform drop database > operations in readonly mode. > - Scripts and Tools: The import-data/export-data scripts have been > extended to support new data types (string, binary large objects, date, > timestamp). > - Scripts and Tools: The import-data/export-data scripts have been > iterated to support the import and export of three types of data: TsFile, > CSV, and SQL. > - Ecosystem Integration: Support for Kubernetes Operator. > ... > > ## Bugs > > - Fixed the issue where the query result set contained duplicate > timestamps. > - Fixed the issue where deleted data could be queried again when triggered > to merge after deletion. > - Fixed the issue where the target sequence in SELECT INTO containing > backticks would result in writing the wrong sequence. > - Fixed the issue where an array out-of-bounds exception was thrown in the > HAVING clause of the tree model due to a non-existent column name. > - Fixed the issue where MergeReader needed to consider memory allocation > to avoid negative available memory during out-of-order and reverse queries. > - Fixed the issue where the CN in the cluster could not register large > pipe plugins (greater than 100MB) and the parameters were not configurable. > - Fixed the issue of controlling the memory size of TimeIndex referenced > by Pipe for TsFileResource. > - Fixed the issue where the Storage Engine - File Count - mods displayed > negative values on the monitoring dashboard. > - Fixed the issue where the query result order was incorrect in the C# > client. > > ... > > The full release note is available at: > https://dlcdn.apache.org/iotdb/2.0.1-beta/RELEASE_NOTES.md > > The release is available for download at: > http://iotdb.apache.org/Download > > Maven artifacts for JDBC driver, session SDK can be found at: > https://search.maven.org/search?q=3Dg:org.apache.iotdb > > > Regards, > The Apache IoTDB team >
