wgtmac commented on code in PR #40594: URL: https://github.com/apache/arrow/pull/40594#discussion_r1888650591
########## cpp/src/parquet/size_statistics.cc: ########## @@ -0,0 +1,90 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliancec +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +#include "parquet/size_statistics.h" + +#include <algorithm> + +#include "arrow/util/logging.h" +#include "parquet/exception.h" +#include "parquet/schema.h" + +namespace parquet { + +void SizeStatistics::Merge(const SizeStatistics& other) { + if (repetition_level_histogram.size() != other.repetition_level_histogram.size()) { + throw ParquetException("Repetition level histogram size mismatch"); + } + if (definition_level_histogram.size() != other.definition_level_histogram.size()) { + throw ParquetException("Definition level histogram size mismatch"); + } + if (unencoded_byte_array_data_bytes.has_value() != + other.unencoded_byte_array_data_bytes.has_value()) { + throw ParquetException("Unencoded byte array data bytes are not consistent"); + } + std::transform(repetition_level_histogram.begin(), repetition_level_histogram.end(), + other.repetition_level_histogram.begin(), + repetition_level_histogram.begin(), std::plus<>()); + std::transform(definition_level_histogram.begin(), definition_level_histogram.end(), + other.definition_level_histogram.begin(), + definition_level_histogram.begin(), std::plus<>()); + if (unencoded_byte_array_data_bytes.has_value()) { + unencoded_byte_array_data_bytes = unencoded_byte_array_data_bytes.value() + + other.unencoded_byte_array_data_bytes.value(); + } +} + +void SizeStatistics::IncrementUnencodedByteArrayDataBytes(int64_t value) { + ARROW_CHECK(unencoded_byte_array_data_bytes.has_value()); + unencoded_byte_array_data_bytes = unencoded_byte_array_data_bytes.value() + value; +} + +void SizeStatistics::Validate(const ColumnDescriptor* descr) const { + if (repetition_level_histogram.size() != + static_cast<size_t>(descr->max_repetition_level() + 1)) { + throw ParquetException("Repetition level histogram size mismatch"); + } + if (definition_level_histogram.size() != + static_cast<size_t>(descr->max_definition_level() + 1)) { + throw ParquetException("Definition level histogram size mismatch"); + } + if (unencoded_byte_array_data_bytes.has_value() && + descr->physical_type() != Type::BYTE_ARRAY) { + throw ParquetException("Unencoded byte array data bytes does not support " + + TypeToString(descr->physical_type())); + } Review Comment: Added -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
