HashJoinRegionScanner code refine
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge pull request #635 from ramkrish86/new_array_type

One changed missed out in the pull
Fix compiler warning for GroupByCache
Merge remote-tracking branch 'upstream/master'
Minor cleanup to SpillableGroupBy
Merge pull request #637 from maryannxue/master

Code refine in HashJoinRegionScanner
Remove unnecessary Aggregator.init() method
Add explicit test of creating a table again
Merge branch 'master' of github.com:forcedotcom/phoenix
Increase heap for test run as we're getting some OOM errors
Allow for comma at the end of a column_def in a create table statement
Merge pull request #647 from yaise/master

Allow for comma at the end of a column_def in a create table statement . Fix for https://github.com/forcedotcom/phoenix/issues/566
Fix compiler warning, add one more negative QueryParserTest for trailing comma
Support for expression that evaluates to an ARRAY
Issue 653