thinkharderdev commented on code in PR #3633:
URL: https://github.com/apache/arrow-rs/pull/3633#discussion_r1090556134
##########
parquet/src/arrow/arrow_reader/selection.rs:
##########
@@ -110,8 +111,18 @@ impl RowSelection {
Self::from_consecutive_ranges(iter, total_rows)
}
+ /// Creates a [`RowSelection`] that will select `limit` rows and skip all
remaining rows.
+ pub(crate) fn from_limit(limit: usize, total_rows: usize) -> Self {
+ Self {
+ selectors: vec![
+ RowSelector::select(limit),
+ RowSelector::skip(total_rows.saturating_sub(limit)),
Review Comment:
Oh, sorry wrong method, yeah I don't think it makes sense then
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