ENG-6466 Added weighted percentage pie chart to web studio
Turn on the delete as we go flag for aggregate executor; Add some performance optimization.
Add subquery group by with limit and offset
Add serial or hash for aggregate plan node explain plan
Merge pull request #1430 from VoltDB/ENG-6466

ENG-6466 Added weighted percentage pie chart to web studio
Merge pull request #1432 from VoltDB/inline-agg

Turn on the delete as we go flag for aggregate executor; Add some perfor...
ENG-6400 Shortened stat names