milvus-io--milvus
wehub-resource-sync
498b235461
Build and test / Build and test AMD64 Ubuntu 22.04 (push) Failing after 0s
Publish Builder / amazonlinux2023 (push) Failing after 1s
Build and test / UT for Go (push) Has been skipped
Publish KRTE Images / KRTE (push) Failing after 1s
Build and test / Integration Test (push) Has been skipped
Build and test / Upload Code Coverage (push) Has been skipped
Publish Builder / rockylinux9 (push) Failing after 1s
Publish Builder / ubuntu22.04 (push) Failing after 0s
Publish Builder / ubuntu24.04 (push) Failing after 0s
Publish Gpu Builder / publish-gpu-builder (push) Failing after 1s
Publish Test Images / PyTest (push) Failing after 0s
Build and test / UT for Cpp (push) Has been cancelled
64 行
2.5 KiB
Go
64 行
2.5 KiB
Go
// Licensed to the LF AI & Data foundation under one
|
|
// or more contributor license agreements. See the NOTICE file
|
|
// distributed with this work for additional information
|
|
// regarding copyright ownership. The ASF licenses this file
|
|
// to you under the Apache License, Version 2.0 (the
|
|
// "License"); you may not use this file except in compliance
|
|
// with the License. You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package queryutil
|
|
|
|
import (
|
|
"context"
|
|
|
|
"go.opentelemetry.io/otel/trace"
|
|
|
|
"github.com/milvus-io/milvus-proto/go-api/v3/schemapb"
|
|
"github.com/milvus-io/milvus/internal/agg"
|
|
"github.com/milvus-io/milvus/pkg/v3/proto/internalpb"
|
|
"github.com/milvus-io/milvus/pkg/v3/proto/planpb"
|
|
)
|
|
|
|
// NewDeduplicateByGroupsOperator creates a pipeline operator that performs
|
|
// GROUP BY aggregation on multiple RetrieveResults.
|
|
//
|
|
// Input[0]: []*internalpb.RetrieveResults (from multiple segments/workers)
|
|
// Output[0]: *internalpb.RetrieveResults (aggregated result)
|
|
//
|
|
// Output FieldsData layout: [group_col1, ..., group_colN, agg1, agg2, ...]
|
|
// Note: aggregation columns (count/sum/min/max) have FieldId=0 (not set by
|
|
// the agg reducer). This is safe because no downstream operator matches on
|
|
// FieldId for aggregation columns — GROUP BY+ORDER BY uses explicit position
|
|
// mapping via NewOrderByLimitOperatorWithPositions, and proxy's schema override
|
|
// in PostExecute skips FieldId=0 (not in schema map).
|
|
//
|
|
// Unlike proxy's version, this does NOT reorganize output fields (no outputMap).
|
|
// groupLimit: -1 for unlimited (when ORDER BY will do topK downstream),
|
|
// >0 to truncate groups.
|
|
func NewDeduplicateByGroupsOperator(
|
|
schema *schemapb.CollectionSchema,
|
|
groupByFieldIDs []int64,
|
|
aggregates []*planpb.Aggregate,
|
|
groupLimit int64,
|
|
) Operator {
|
|
return NewLambdaOperator(OpReduceByGroups, func(ctx context.Context, span trace.Span, inputs ...any) ([]any, error) {
|
|
results := inputs[0].([]*internalpb.RetrieveResults)
|
|
|
|
reducer := agg.NewGroupAggReducer(groupByFieldIDs, aggregates, groupLimit, schema)
|
|
reducedRes, err := reducer.Reduce(ctx, agg.InternalResult2AggResult(results))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return []any{agg.AggResult2internalResult(reducedRes)}, nil
|
|
})
|
|
}
|