When you no longer want to include a property in a CBR search you must remove property-level indexing from the property and reindex. Note that when you reindex a property the reindexing process does not remove existing entries for a property from the index. Reindexing prevents that property from being indexed for all documents and annotations from that point forward.
For example, assume the DocumentTitle property of the Document class is initially set for CBR indexing. As documents are added to the object store the CBR indexes are updated with entries for the DocumentTitle content as well as the actual contents of the document. A CBR search for the phrase "Test Plan" will display all documents and all versions of those documents that contain that phrase either in the body of the document or in the DocumentTitle property. If CBR support is removed for the DocumentTitle property and the database is reindexed, the CBR search will still return the same result set as the previous query. However, any documents added that contain the phrase "Test Plan" after the CBR support is removed will not appear in the query result set. To remove all past entries for the phrase "Test Plan" from the index you must remove the index and reconfigure CBR.
NOTE When
a class property is set or unset for full-text indexing it is automatically
set or unset in all subclasses.
To remove CBR for properties from the class Properties page
To remove CBR for class definitions
For more information see Reindex.