Hi ! 

The cost field under planning_information in your DLT (Delta Live Tables) workflow system event logs represents an estimated cost for the particular maintenance type operation. In this context, MAINTENANCE_TYPE_COMPLETE_RECOMPUTE indicates that a complete recompute operation is planned, and the cost value (48.0) likely signifies the estimated computational cost for this operation.

Explanation of Fields:

maintenance_type: Type of maintenance operation being performed.

is_chosen: Indicates if this technique was chosen for execution.

is_applicable: Indicates if this technique is applicable to the current scenario.

cost: Estimated computational cost for this maintenance operation.

table_id: Identifier for the target table on which this maintenance operation is performed.