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MarkLogic Server 11.0 Product DocumentationAttribute Range Index Configuration Help
An Attribute Range Index accelerates queries for comparisons against attributes of the specified element within a specified type.
Each Attribute Range Index keeps track of the values appearing in all attributes with a given element name, attribute name, type, and collation.
Attribute Range
Indexes also allow you to use the
cts:element-attribute-values family of lexicon APIs
and to use the cts:element-attribute-range-query
constructor in searches.
Configure the following for each Attribute Range Index:
- The scalar type specifies the ordered domain for the index. Each of the types correspond with an XQuery type.
- The parent namespace URI specifies the namespace URI of the parent element.
- The parent localname specifies the local name of the parent XML element or the name of the parent JSON property.
- namespace URI specifies the namespace for an element or an attribute.
- localname specifies the localname for an XML element/attribute or the name for a JSON property.
- The collation specifies the collation to use in the comparison operations.
- range value positions specifies whether index data should be included that speeds up the performance of proximity queries involving range queries. Turn this index off if you are not interested in proximity queries and if you want to conserve disk space and decrease loading time.
- invalid values specifies whether server should allow insertion of documents that contain XML elements or JSON properties on which range index is configured and their contents cannot be coerced to the index data type. It can be configured to either ignore or reject. By default server rejects insertion of such documents. However, if a user configures invalid values to ignore, these documents can be inserted. This setting does not change the behavior of queries on invalid values after documents are inserted in the database. Performing an operation on an invalid value at query time can still result in an error.
Buttons and Tabs:
- Use the Configure tab to edit existing range element attribute index configurations. Click the delete button corresponding to a range index to remove it.
- Use the Add tab to add new range element attribute indexes to the database configuration.