include/parquet/level_comparison.h

0001 // Licensed to the Apache Software Foundation (ASF) under one
0002 // or more contributor license agreements.  See the NOTICE file
0003 // distributed with this work for additional information
0004 // regarding copyright ownership.  The ASF licenses this file
0005 // to you under the Apache License, Version 2.0 (the
0006 // "License"); you may not use this file except in compliance
0007 // with the License.  You may obtain a copy of the License at
0008 //
0009 //   http://www.apache.org/licenses/LICENSE-2.0
0010 //
0011 // Unless required by applicable law or agreed to in writing,
0012 // software distributed under the License is distributed on an
0013 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
0014 // KIND, either express or implied.  See the License for the
0015 // specific language governing permissions and limitations
0016 // under the License.
0017 #pragma once
0018
0019 #include <algorithm>
0020 #include <cstdint>
0021
0022 #include "parquet/platform.h"
0023
0024 namespace parquet::internal {
0025
0026 /// Builds a  bitmap where each set bit indicates the corresponding level is greater
0027 /// than rhs.
0028 uint64_t PARQUET_EXPORT GreaterThanBitmap(const int16_t* levels, int64_t num_levels,
0029                                           int16_t rhs);
0030
0031 struct MinMax {
0032   int16_t min;
0033   int16_t max;
0034 };
0035
0036 MinMax FindMinMax(const int16_t* levels, int64_t num_levels);
0037
0038 }  // namespace parquet::internal