disable concat in hsql and enable it in FunctionForVoltDB, and test cases
Merge branch 'master' into ENG-6551-CONCAT-more-para
remove auto-added-by-eclipse lines
keep cleaning
Merge branch 'master' into ENG-6551-CONCAT-more-para
improve concat performace by using memcpy instead of string::append
use smart pointer
change the pattern of smart pointer usage
delete one blank line
move tabs in file
Merge branch 'master' into ENG-6551-CONCAT-more-para
Merge pull request #1511 from VoltDB/ENG-6551-CONCAT-more-param

disable concat in hsql and enable it in FunctionForVoltDB, and test case...