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54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
// Copyright (c) 2023 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build vectors
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// +build vectors
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package searcher
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import (
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"context"
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"github.com/blevesearch/bleve/v2/search"
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index "github.com/blevesearch/bleve_index_api"
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)
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func optimizeKNN(ctx context.Context, indexReader index.IndexReader,
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qsearchers []search.Searcher) error {
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var octx index.VectorOptimizableContext
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var err error
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for _, searcher := range qsearchers {
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// Only applicable to KNN Searchers.
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o, ok := searcher.(index.VectorOptimizable)
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if !ok {
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continue
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}
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octx, err = o.VectorOptimize(ctx, octx)
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if err != nil {
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return err
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}
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}
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// No KNN searchers.
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if octx == nil {
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return nil
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}
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// Postings lists and iterators replaced in the pointer to the
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// vector reader
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return octx.Finish()
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}
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