The optional clearFilePaths argument enables you to specify that explicit map file settings (that is, hard-coded map paths) are overridden for restore operations when using the restore, restoreFile, or restorePartitionFile command.
When you specify the clearFilePaths argument, all user file paths in the control file and in the partition control files are set to <null> during database initialization.
When you specify the clearFilePaths argument for the restoreFile or restorePartitionFile command, it has an effect only when that restore file is processing the _control.dat file.