Dynamic data management framework. The foundation for your next high-performance database.

It contains many of the pieces that comprise a typical database management system but omits the storage primitives. It provides an industry standard SQL parser and validator, a customisable optimizer with pluggable rules and cost functions, logical and physical algebraic operators, various transformation algorithms from SQL to algebra (and the opposite), and many adapters for executing SQL queries over Cassandra, Druid, Elasticsearch, MongoDB, Kafka, and others, with minimal configuration.

• Apache Calcite @ GitHub.

Related contents:

• Reimagining log analytics for the modern enterprise @ OpenSearch.

Fess is very powerful and easily deployable Enterprise Search Server.

Fess is a very powerful and easily deployable Enterprise Search Server. You can quickly install and run Fess on any platform where you can run the Java Runtime Environment. Fess is provided under the Apache License 2.0.

Fess is based on OpenSearch/Elasticsearch, but knowledge/experience about OpenSearch/Elasticsearch is not required. Fess provides an easy to use Administration GUI to configure the system via your browser. Fess also contains a Crawler, which can crawl documents on a web server, file system, or Data Store (such as a CSV or database). Many file formats are supported including (but not limited to): Microsoft Office, PDF, and zip.

• Fess @ GitHub.
• Docker for Fess @ GitHub.

SEAL stands for: S earch E ngine A bstraction L ayer

The SEAL project is a PHP library designed to simplify the process of interacting with different search engines. It provides a straightforward interface that enables users to communicate with various search engines.

SEAL @ GitHub.