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This is documentation for Caché & Ensemble. See the InterSystems IRIS version of this content.

For information on migrating to InterSystems IRIS, see Why Migrate to InterSystems IRIS?

Full-Text Searching

Perform full-text searching.

Background Information

A full-text search examines all the words in every stored document, rather than examining only titles or other metadata.

Available Tools

%Text class, %TextStreamInterface class, and classes in the %Text package

Enable you to implement full-text searching. The class %Text.Text data type class implements the methods used by Caché for full text indexing, text search, similarity scoring, automatic classification, dictionary management, word stemming, n-gram key creation, and noise word filtering.

Other classes in this package implement language-specific stemming algorithms and initialize the language-specific lists of noise words.

For details, see “Using Free-text Search” in the chapter “Querying the Database” in Using Caché SQL.

Also see the InterSystems Class Reference. The comments for these classes are extensive.

Availability: All namespaces.