pick up the comparison optimization from innovation branch separately
Merge branch 'master' of github.com:VoltDB/voltdb into innovation-xin-perf-steps
Optimize the getObjectLength and getObjectValue for varchar and varbinary
Merge branch 'master' of github.com:VoltDB/voltdb into innovation-xin-perf-steps
made a silly mistake
function renaming
get rid of the withoutNUll postfix for comparison function names
Merge pull request #1195 from VoltDB/innovation-xin-perf-steps

Innovation xin perf NValue change steps