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GroupByOperator

uqa_operators::aggregation

Struct GroupByOperator 

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pub struct GroupByOperator {
    pub source: Arc<dyn Operator>,
    pub group_field: String,
    pub agg_field: String,
    pub monoid: Arc<dyn AggregationMonoid>,
}
Expand description

Group documents by group_field and fold agg_field per group.

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§source: Arc<dyn Operator>§group_field: String§agg_field: String§monoid: Arc<dyn AggregationMonoid>

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impl GroupByOperator

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pub fn new( source: Arc<dyn Operator>, group_field: impl Into<String>, agg_field: impl Into<String>, monoid: Arc<dyn AggregationMonoid>, ) -> Self

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