Use the quick way to optimize the tableIterator instead of using the abstract class
Merge branch 'master' of github.com:VoltDB/voltdb into optimize-null-checking-xin
Merge branch 'master' of github.com:VoltDB/voltdb into innovation-xin-perf
Optimize the table iterator function for executors, need to do that for nestloopjoin and union executor in future
insertexecutor use the temptable iterator for input table
same fix for updateExecutor and deleteExecutor
various optimization, mainly removing unused Json items
initialized the value size as 0
Fix the assertion
turn off the assertion
use hash map to get the type length
Merge branch 'master' of github.com:VoltDB/voltdb into innovation-xin-perf
optmize the adhoc planner cache statics calculations
Merge branch 'master' into innovation-xin-perf
merge recent master
Merge branch 'master' of github.com:VoltDB/voltdb into innovation-xin-perf
merge the recent master
Code clean up. Ready to merge master for minor changes
ENG-5880: Fix bad usage of weak references.
Merge pull request #1153 from VoltDB/innovation-xin-perf

Innovation xin perf