53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
// Copyright (c) 2023 Couchbase, Inc.
|
|
//
|
|
// Licensed 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.
|
|
|
|
//go:build vectors
|
|
// +build vectors
|
|
|
|
package searcher
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/blevesearch/bleve/v2/search"
|
|
index "github.com/blevesearch/bleve_index_api"
|
|
)
|
|
|
|
func optimizeKNN(ctx context.Context, indexReader index.IndexReader,
|
|
qsearchers []search.Searcher) error {
|
|
var octx index.VectorOptimizableContext
|
|
var err error
|
|
|
|
for _, searcher := range qsearchers {
|
|
// Only applicable to KNN Searchers.
|
|
o, ok := searcher.(index.VectorOptimizable)
|
|
if !ok {
|
|
continue
|
|
}
|
|
|
|
octx, err = o.VectorOptimize(ctx, octx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// No KNN searchers.
|
|
if octx == nil {
|
|
return nil
|
|
}
|
|
|
|
// Postings lists and iterators replaced in the pointer to the
|
|
// vector reader
|
|
return octx.Finish()
|
|
}
|