InterSystems has decided to stop further development of the InterSystems IRIS Natural Language Processing, formerly known as iKnow, technology and label it as deprecated as of the 2023.3 release of InterSystems IRIS. InterSystems will continue to support existing customers using the technology, but does not recommend starting new development projects outside of the core text exploration use cases it was originally designed for.
iFind is an SQL facility for performing text search operations. To use iFind you must define an iFind index for each column containing text that you wish to search. You can then search the text records using a standard SQL query with a WHERE clause containing iFind index syntax.