document: Texquery : a full-text search extension to xquery One of the key benefits of XML is its ability to represent a mix of structured and unstructured ( text ) data . Although current XML query languages such as XPath and XQuery can express rich queries over structured data , they can only express very rudimentary queries over text data . We thus propose TeXQuery , which is a powerful full-text search extension to XQuery . TeXQuery provides a rich set of fully composable full-text search primitives , such as Boolean connectives , phrase matching , proximity distance , stemming and thesauri . TeXQuery also enables users to seamlessly query over both structured and text data by embedding TeXQuery primitives in XQuery , and vice versa . Finally , TeXQuery supports a flexible scoring construct that can be used toscore query results based on full-text predicates . TeXQuery is the precursor ofthe full-text language extensions to XPath 2.0 and XQuery 1.0 currently being developed by the W3C .
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