Relational operators search document fields (such as
AUTHOR
) that have been defined in the collection. These operators perform a filtering function by selecting documents that contain specified field values. The fields that are used with relational operators can contain alphanumeric characters. Documents retrieved using relational operators are not relevance-ranked, and you cannot use the MANY
modifier with relational operators.
The following table briefly describes the relational operators are available for text comparisons; see "Operators for Searching Text Fields" in Chapter 3 for examples and more detailed descriptions.