fun <TExpression> group(id: TExpression, vararg fieldAccumulators: BsonField): Bson
(source)fun <TExpression> group(id: TExpression, fieldAccumulators: List<BsonField>): Bson
(source)
Creates a $group pipeline stage for the specified filter
id
- the id expression for the group
fieldAccumulators
- zero or more field accumulator pairs
Parameters
Return
the $group pipeline stage
Mongodb
.driver.manual reference/operator/aggregation/group/ $group
Mongodb
.driver.manual meta/aggregation-quick-reference/#aggregation-expressions Expressions