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39e7ad33d7
#41065 Signed-off-by: luzhang <luzhang@zilliz.com> Co-authored-by: luzhang <luzhang@zilliz.com>
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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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#pragma once
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#include <pb/schema.pb.h>
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#include <memory>
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#include <string>
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#include <vector>
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#include "index/Meta.h"
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#include "index/ScalarIndex.h"
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namespace milvus::index {
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class StringIndex : public ScalarIndex<std::string> {
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public:
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StringIndex(const std::string& index_type)
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: ScalarIndex<std::string>(index_type) {
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}
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const TargetBitmap
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Query(const DatasetPtr& dataset) override {
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auto op = dataset->Get<OpType>(OPERATOR_TYPE);
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if (op == OpType::PrefixMatch) {
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auto prefix = dataset->Get<std::string>(MATCH_VALUE);
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return PrefixMatch(prefix);
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}
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return ScalarIndex<std::string>::Query(dataset);
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}
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virtual const TargetBitmap
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PrefixMatch(const std::string_view prefix) = 0;
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};
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using StringIndexPtr = std::unique_ptr<StringIndex>;
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} // namespace milvus::index
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