fixed aggregation of bufferedKB column
fixed aggregation of bufferedKB column

simonzhangsm/voltdb,VoltDB/voltdb,VoltDB/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,VoltDB/voltdb,deerwalk/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,deerwalk/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,VoltDB/voltdb