The profiling indices result in a reduction of {TAIL ~ the number} of {HEAD ~ records} that are searched when searching for a sub string match within that column 
The profiling indices result in a reduction of { TAIL ~ the number } of { HEAD ~ records } that are searched when searching for a sub string match within that column
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH