jp0317 commented on code in PR #36649:
URL: https://github.com/apache/arrow/pull/36649#discussion_r1267499367
##########
cpp/src/parquet/file_reader.cc:
##########
@@ -203,8 +204,8 @@ class SerializedRowGroup : public RowGroupReader::Contents {
::arrow::io::ReadRange col_range =
ComputeColumnChunkRange(file_metadata_, source_size_,
row_group_ordinal_, i);
std::shared_ptr<ArrowInputStream> stream;
- if (cached_source_ &&
- prebuffered_column_chunks_.find(i) !=
prebuffered_column_chunks_.end()) {
+ if (cached_source_ && prebuffered_column_chunks_bitmap_ != nullptr &&
+
::arrow::bit_util::GetBit(prebuffered_column_chunks_bitmap_->mutable_data(),
i)) {
Review Comment:
done, thanks!
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