Fast standalone full-text SQL search engine

 Sphinx is a standalone full text search engine, meant to provide fast,
 size-efficient and relevant fulltext search functions to other applications.
 Sphinx was specially designed to integrate well with SQL databases and
 scripting languages. Currently built-in data sources support fetching data
 either via direct connection to MySQL or PostgreSQL, or using XML pipe
 mechanism (a pipe to indexer in special XML-based format which Sphinx
 recognizes).
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 Sphinx is an acronym which is officially decoded as SQL Phrase Index.