XiangpengHao commented on code in PR #7850:
URL: https://github.com/apache/arrow-rs/pull/7850#discussion_r2180917317
##########
parquet/src/arrow/async_reader/mod.rs:
##########
@@ -588,6 +588,16 @@ where
.filter(|index| !index.is_empty())
.map(|x| x[row_group_idx].as_slice());
+ let cache_projection = match
self.compute_cache_projection(&projection) {
+ Some(projection) => projection,
+ None => ProjectionMask::none(meta.columns().len()),
+ };
+ let row_group_cache = Arc::new(Mutex::new(RowGroupCache::new(
+ batch_size,
+ // None,
+ Some(1024 * 1024 * 100),
Review Comment:
This is currently hard-coded, leave it a future work to make it configurable
through user settings
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