Function build_copy_file_paths 

fn build_copy_file_paths(
    source_region_id: RegionId,
    target_region_id: RegionId,
    file_descriptor: FileDescriptor,
    table_dir: &str,
    path_type: PathType,
) -> (String, String)

Builds the source and target file paths for a given file descriptor.

Arguments

• source_region_id: The ID of the source region.
• target_region_id: The ID of the target region.
• file_id: The ID of the file.

Returns

A tuple containing the source and target file paths.