etseidl commented on code in PR #8327:
URL: https://github.com/apache/arrow-rs/pull/8327#discussion_r2344624543
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parquet/src/arrow/arrow_reader/mod.rs:
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@@ -1103,11 +1103,12 @@ impl ParquetRecordBatchReader {
row_groups: &dyn RowGroups,
batch_size: usize,
selection: Option<RowSelection>,
+ projection: &ProjectionMask,
Review Comment:
I found this comment
https://github.com/apache/arrow-rs/pull/4307/files#r1209566002
It appears that `ProjectionMask` was deliberately excluded. Have you tried
passing the mask to `parquet_to_arrow_field_levels` as suggested?
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