Aggregation Expression - $gt

Function Build

Build $gt with the Gt function from the aggregation package.

// bson.D{bson.E{Key:"isAdult", Value:bson.D{bson.E{Key:"$gt", Value:[]interface {}{"$age", 18}}}}}
result := aggregation.Gt("isAdult", "$age", 18)

Method Build (Builder)

Build $gt with the Gt method from aggregation.NewBuilder().

// bson.D{bson.E{Key:"isAdult", Value:bson.D{bson.E{Key:"$gt", Value:[]interface {}{"$age", 18}}}}}
result := aggregation.NewBuilder().
    Gt("isAdult", "$age", 18).
    Build()

Build Without Key

When an expression needs to be passed as an argument to another expression, use a WithoutKey variant to build an expression fragment without an output field name.

GtWithoutKey

Function build:

// bson.D{bson.E{Key:"$gt", Value:[]any{"$age", 18}}}
expr := aggregation.GtWithoutKey("$age", 18)

Method build (Builder):

// bson.D{bson.E{Key:"$gt", Value:[]any{"$age", 18}}}
expr := aggregation.NewBuilder().
    GtWithoutKey("$age", 18).
    Build()