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d69bdd288c
issue: #47809 --------- Signed-off-by: xiaofanluan <xiaofan.luan@zilliz.com> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
56 lines
1.8 KiB
C++
56 lines
1.8 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 <cstdint>
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#include <iterator>
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#include "pb/plan.pb.h"
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#include "common/EasyAssert.h"
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extern "C" {
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#include "Murmur3.h"
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}
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namespace milvus::rescores {
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inline float
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function_score_merge(const float& a,
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const float& b,
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const proto::plan::FunctionMode& mode) {
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switch (mode) {
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case proto::plan::FunctionModeMultiply:
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return a * b;
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case proto::plan::FunctionModeSum:
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return a + b;
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default:
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ThrowInfo(ErrorCode::UnexpectedError,
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fmt::format("unknown boost function mode: {}:{}",
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proto::plan::FunctionMode_Name(mode),
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static_cast<int>(mode)));
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}
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}
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#define MAGIC_BITS (0x3FFL << 52)
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double
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hash_to_double(const uint64_t& h) {
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auto double_bytes = (MAGIC_BITS | (h & 0xFFFFFFFFFFFFF));
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double result;
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memcpy(&result, &double_bytes, sizeof(result));
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return result - 1.0;
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}
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} // namespace milvus::rescores
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