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67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "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 distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License
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#pragma once
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#include <memory>
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#include <string>
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#include "index/ScalarIndexSort.h"
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#include "index/StringIndexSort.h"
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#include "common/FieldMeta.h"
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#include "common/Span.h"
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namespace milvus::query {
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template <typename T>
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inline index::ScalarIndexPtr<T>
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generate_scalar_index(Span<T> data) {
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auto indexing = std::make_unique<index::ScalarIndexSort<T>>();
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indexing->Build(data.row_count(), data.data());
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return indexing;
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}
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template <>
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inline index::ScalarIndexPtr<std::string>
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generate_scalar_index(Span<std::string> data) {
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auto indexing = index::CreateStringIndexSort();
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indexing->Build(data.row_count(), data.data());
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return indexing;
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}
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inline index::IndexBasePtr
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generate_scalar_index(SpanBase data, DataType data_type) {
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Assert(!datatype_is_vector(data_type));
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switch (data_type) {
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case DataType::BOOL:
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return generate_scalar_index(Span<bool>(data));
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case DataType::INT8:
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return generate_scalar_index(Span<int8_t>(data));
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case DataType::INT16:
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return generate_scalar_index(Span<int16_t>(data));
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case DataType::INT32:
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return generate_scalar_index(Span<int32_t>(data));
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case DataType::INT64:
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return generate_scalar_index(Span<int64_t>(data));
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case DataType::FLOAT:
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return generate_scalar_index(Span<float>(data));
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case DataType::DOUBLE:
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return generate_scalar_index(Span<double>(data));
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case DataType::VARCHAR:
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return generate_scalar_index(Span<std::string>(data));
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default:
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PanicInfo(DataTypeInvalid,
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fmt::format("unsupported type {}", data_type));
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}
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}
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} // namespace milvus::query
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