yeya24 commented on code in PR #8327:
URL: https://github.com/apache/arrow-rs/pull/8327#discussion_r2344829635
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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:
Oh I see. This makes sense. I was confused by that projection all used in
`try_new_with_row_groups` and didn't realized that it can be projected before
at levels.
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