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Support recursive operator calls for $sum aggregation accumulator #3116

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merged 18 commits into from
Jul 31, 2023
Merged

Support recursive operator calls for $sum aggregation accumulator #3116

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noisersup Jul 26, 2023
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Merge branch 'main' into aggregation-recursive-sum-2964
mergify[bot] Jul 31, 2023
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@noisersup
noisersup committed Jul 28, 2023
commit 42ff4215f6577f43b4ffea2207d18402d4f5f2f5
5 changes: 5 additions & 0 deletions internal/handlers/common/aggregations/operators/accumulators/sum.go
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,11 @@ func newSum(accumulation *types.Document) (Accumulator, error) {
}

op, err := operators.NewOperator(expr)
if err == nil {
// TODO https://github.com/FerretDB/FerretDB/issues/3129
_, err = op.Process(nil)
}

if err != nil {
var opErr operators.OperatorError
if !errors.As(err, &opErr) {
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7 changes: 0 additions & 7 deletions internal/handlers/common/aggregations/stages/group.go
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Expand Up @@ -105,13 +105,6 @@ func newGroup(stage *types.Document) (aggregations.Stage, error) {
return nil, processOperatorError(err)
}

newIter := iterator.Values(iterator.ForSlice([]*types.Document{nil}))
defer newIter.Close()

if _, err = accumulator.Accumulate(newIter); err != nil {
return nil, processOperatorError(err)
}

groups = append(groups, groupBy{
outputField: field,
accumulate: accumulator.Accumulate,
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