an aggregate expression that evaluates to same final result as the original aggregation.
A sequence of NamedExpressions that can be computed on partial
data sets and are required to compute the finalEvaluation
.
an aggregate expression that evaluates to same final result as the original aggregation.
A sequence of NamedExpressions that can be computed on partial
data sets and are required to compute the finalEvaluation
.
Represents an aggregation that has been rewritten to be performed in two steps.
an aggregate expression that evaluates to same final result as the original aggregation.
A sequence of NamedExpressions that can be computed on partial data sets and are required to compute the
finalEvaluation
.