ColdFusion Server: How To Customize the Summary Result
The CFSEARCH tag summary result variable returns the contents of the automatic summary generated by the CFINDEX tag. The default summary selects the best three matching sentences, up to a maximum of 500 characters. This TechNote describes how to modify the default summary result variable to return the first four sentences of the indexed document (but not more than 500 bytes) or the first 150 bytes of the indexed document.
ColdFusion Server: How To Customize the Summary Result