pitrou commented on code in PR #12829:
URL: https://github.com/apache/arrow/pull/12829#discussion_r861097651
##########
cpp/src/parquet/arrow/reader_internal.cc:
##########
@@ -409,22 +441,36 @@ Status TransferDate64(RecordReader* reader, MemoryPool*
pool,
Status TransferDictionary(RecordReader* reader,
const std::shared_ptr<DataType>& logical_value_type,
- std::shared_ptr<ChunkedArray>* out) {
+ bool nullable, std::shared_ptr<ChunkedArray>* out) {
auto dict_reader = dynamic_cast<DictionaryRecordReader*>(reader);
DCHECK(dict_reader);
*out = dict_reader->GetResult();
if (!logical_value_type->Equals(*(*out)->type())) {
ARROW_ASSIGN_OR_RAISE(*out, (*out)->View(logical_value_type));
}
+ if (!nullable) {
+ // Reconstruct each chunk without nulls.
Review Comment:
Hmm, I see, thank you.
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