Concept

LucidDB

Summary
LucidDB is an open-source database purpose-built to power data warehouses, OLAP servers and business intelligence systems. According to the product website, its architecture is based on column-store, bitmap indexing, hash join/aggregation, and page-level multiversioning. Overview Purpose-built for data warehousing, OLAP, and business intelligence, LucidDB is a "columnar Business Intelligence database". It handles ETL functionality using extensions to ANSI SQL, by using 'wrappers' around a range of data sources (databases, text files, Web services, etc.), allowing them to be queried as though they were all databases. It can also be used for enterprise information integration. LucidDB uses the Optiq query planning and execution framework. LucidDB achieves high performance by automatically identifying required indexes and creating them on the fly without the need for manual intervention. It includes a bulk loader that permits merge an
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