Optimized using an Abstract Plan (ID : N).
The message above is printed when an abstract plan was associated with the query. The variable prints the ID number of the plan.
Optimized using the Abstract Plan in the PLAN clause.
The message above is printed when the plan clause is used for a select, update, or delete statement. See Creating and Using Abstract Plans in the Performance and Tuning Guide: Optimizing and Abstract Plans for more information.