LucidDB
| Company type | Open source |
|---|---|
| Industry | Database management systems |
| Products | Column-oriented database software |
LucidDB is an open-source database engineered specifically for use in data warehouse environments, OLAP platforms, and business intelligence applications. Its design integrates a columnar storage model, bitmap indexing techniques, hash join and aggregation methods, along with page-level multiversion concurrency control.
Overview
LucidDB functions as a "column-oriented Business Intelligence database" optimized for data warehousing, OLAP, and business intelligence workflows. It facilitates ETL processes by extending ANSI SQL and employing 'wrappers' that allow seamless querying across various data sources such as databases, text files, and Web services, treating them uniformly as database tables. Furthermore, it supports enterprise information integration. The query planning and execution are managed through the Optiq framework.
To improve efficiency, LucidDB automatically identifies and generates required indexes without user intervention. It also offers a bulk loading utility capable of performing merge, update, and insert operations on data sets.
Licensing is divided between the server component, which is distributed under the GPL, and the client side, released under the LGPL.
Current status
Development of LucidDB appears to have ceased, with its GitHub repository inactive since 2020 and no updates on SourceForge since 2010.
LucidDB, recognized as the first dedicated open source column-store database, has officially ended its development due to insufficient commercial backing and community involvement. No further code or binary releases are planned, and project resources will gradually be withdrawn. Some elements of LucidDB’s code have been integrated into Optiq, a project focusing on SQL query capabilities for NoSQL data stores.
Connectors
- JDBC driver
- ADO.NET provider