SQL4026 - Index only access used on table number &1

SQL4026
Message Text: Index only access used on table number &1
Cause Text: Index only access is primarily used in conjunction with either index scan-key row positioning index scan-key selection. This access method will extract all of the data from the index rather than performing random I/O to the data space.

The table number refers to the relative position of this table in the query.
Recovery Text: Refer to Data access on DB2 UDB for iSeries: data access paths and methods for more information about index only access.