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