normalize
ApproxDistinctCount
ApproxPercentiles
BaseAggregator
FrequentItems
OrderByLimitTimed
TimeOrdered
UniqueCount
BucketedColumnAggregator
ColumnAggregator
DirectColumnAggregator
RowAggregator
normalizeBatchIr
SawtoothOnlineAggregator
normalizeInPlace
RowAggregator
numberSanityCheck
DirectColumnAggregator