wft

#start 0.20 and index

_0.fdt				_0.frq				_0.tii				segments.gen
_0.fdx				_0.nrm				_0.tis				segments_2
_0.fnm				_0.prx				_checksums-1409045670501

#stop 0.20
#start 1.3.1 on the same data dir

_0.fdt				_0.nrm				_0.tis				_1.si				write.lock
_0.fdx				_0.prx				_0_upgraded.si			_checksums-1409045670501
_0.fnm				_0.si				_1.cfe				segments.gen
_0.frq				_0.tii				_1.cfs				segments_3

# call optmize && shutdown
_0.fdt				_0.frq				_0.tii				_1.cfs				segments.gen
_0.fdx				_0.nrm				_0.tis				_1.si				segments_5
_0.fnm				_0.prx				_1.cfe				_checksums-1409045670501	write.lock