Used to specify that the text in certain fields should be collected, stored in the index, and returned in searches.
The field names in the list can contain wildcards (* and ?). A set containing a single entry "*" would match all fields, causing the text of every field to be stored in the index.
The maximum amount of text that can be stored in each stored field is controlled by dtsOptions.maxStoredFieldSize.
For more information, see Retrieving Fields in Search Results