Faceting allows the user to group search
results into categories based on the values of an attribute type. For example,
you can group the search results based on the "Object Type" system attribute.
You can get the numbers of objects in a category, e.g. Column, and find the
objects of that category. Faceting makes it easy for users to explore search
results, narrowing in on exactly the results they are looking for.
If the
search index is a Solr index, many system attributes can be used in faceting.
Refer to the Column "Supported in FACET" of System Attributes. Custom
attributes of the following data types can also be used in faceting: Boolean,
Integer, Date, DateTime, Enumeration, Enumeration (Multi-value), String, User
and Users. To facet on a Date or DateTime attribute, a "Data Range Gap"
parameter, such as YEAR, MONTH, DAY, or HOUR, must be provided. Faceting is also
supported on the Data Profiling attributes and Source History
attributes.
If the search index is a Lucene index, only “Model Id” and
"Object Type" system attributes can be used in faceting.