How the part is realized via subtask.

Item Summary
Name	Type	Multiplicity	Description
taskName	property string	[0,1]	How to derive names for the partition task.
executionEnvironment	container TaskExecutionEnvironmentType	[0,1]	Execution environment configuration to use for partition task.
copyMasterExtension	property boolean	[0,1]	Whether to copy task extension from the master task.
durable	property boolean	[0,1]	Whether the subtasks for parts should be durable i.

Items
- taskName
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  How to derive names for the partition task. It is possible to use substitution strings of {masterTaskName}, {masterTaskHandlerUri} and {index} here. Overrides the pattern specified for all parts.
- executionEnvironment
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Execution environment configuration to use for partition task.
- copyMasterExtension
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Whether to copy task extension from the master task. Overrides the value specified in the parent element.
- durable
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Whether the subtasks for parts should be durable i.e. whether they should persist through master task restarts. This is useful e.g. for partitioned validity scanner because each partition keeps its own last scan timestamp.