Elasticsearch-SQL is a plugin that enables querying Elasticsearch using SQL syntax instead of native query DSL.
The tool translates SQL statements into Elasticsearch queries, allowing developers familiar with SQL to work with Elasticsearch data without learning the query language specific to the search engine. It parses SQL input, converts it to appropriate Elasticsearch operations, and returns results in a structured format. The plugin also supports Elasticsearch functions within SQL queries, extending the expressiveness of SQL-based searches.
Developers considering this tool should be aware that the project is deprecated and no longer in active development. The README explicitly recommends using the official x-pack-sql implementation or OpenDistro for Elasticsearch SQL supported by AWS instead. Anyone already using this plugin or maintaining legacy systems that depend on it will find that maintainers typically respond to issues and pull requests within hours, providing practical support despite the deprecated status.
The project maintains build compatibility across multiple Elasticsearch versions and continues to receive maintenance responses to community issues and contributions.
