zhuqi-lucas commented on code in PR #7873:
URL: https://github.com/apache/arrow-rs/pull/7873#discussion_r2192158227
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arrow-array/src/array/byte_view_array.rs:
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@@ -473,13 +473,86 @@ impl<T: ByteViewType + ?Sized> GenericByteViewArray<T> {
/// Note: this function does not attempt to canonicalize / deduplicate
values. For this
/// feature see [`GenericByteViewBuilder::with_deduplicate_strings`].
pub fn gc(&self) -> Self {
- let mut builder =
GenericByteViewBuilder::<T>::with_capacity(self.len());
+ // 1) Read basic properties once
+ let len = self.len(); // number of elements
+ let views = self.views(); // raw u128 “view” values per slot
+ let nulls = self.nulls().cloned(); // reuse & clone existing null
bitmap
+
+ // 2) Calculate the total size of all non‑inline data
+ let mut total_large = 0;
+ if let Some(nbm) = &nulls {
+ for i in nbm.valid_indices() {
+ let raw_view: u128 = unsafe { *views.get_unchecked(i) };
+ let bv = ByteView::from(raw_view);
+ if bv.length > MAX_INLINE_VIEW_LEN {
+ total_large += bv.length as usize;
+ }
+ }
+ } else {
+ for i in 0..len {
Review Comment:
Addressed in latest PR, thanks @Dandandan.
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