wgtmac commented on code in PR #45285:
URL: https://github.com/apache/arrow/pull/45285#discussion_r1920198432
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cpp/src/parquet/size_statistics.cc:
##########
@@ -64,14 +64,23 @@ void
SizeStatistics::IncrementUnencodedByteArrayDataBytes(int64_t 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");
- }
+ auto validate_histogram = [](const std::vector<int64_t>& histogram, int16_t
max_level,
+ const std::string& name) {
+ if (histogram.empty()) {
+ // A levels histogram is always allowed to be missing.
Review Comment:
Yes, I just thought about this and will loose it as well.
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