Dandandan commented on code in PR #9755:
URL: https://github.com/apache/arrow-rs/pull/9755#discussion_r3104926222
##########
arrow-select/src/coalesce/primitive.rs:
##########
@@ -94,6 +97,94 @@ impl<T: ArrowPrimitiveType + Debug> InProgressArray for
InProgressPrimitiveArray
Ok(())
}
+ fn copy_rows_by_filter(&mut self, filter: &FilterPredicate) -> Result<(),
ArrowError> {
+ self.ensure_capacity();
+
+ let s = self
+ .source
+ .as_ref()
+ .ok_or_else(|| {
+ ArrowError::InvalidArgumentError(
+ "Internal Error: InProgressPrimitiveArray: source not
set".to_string(),
+ )
+ })?
+ .as_primitive::<T>();
+
+ match filter.strategy() {
+ IterationStrategy::None => return Ok(()),
+ IterationStrategy::All => return self.copy_rows(0, filter.count()),
+ IterationStrategy::Slices(slices) => {
+ for &(start, end) in slices {
+ self.copy_rows(start, end - start)?;
+ }
+ return Ok(());
+ }
+ IterationStrategy::SlicesIterator => {
+ for (start, end) in SlicesIterator::new(filter.filter_array())
{
+ self.copy_rows(start, end - start)?;
+ }
+ return Ok(());
+ }
+ IterationStrategy::Indices(_) | IterationStrategy::IndexIterator
=> {}
+ }
+
+ if let Some((null_count, nulls)) = filter_null_mask(s.nulls(), filter)
{
+ let nulls = unsafe {
+ NullBuffer::new_unchecked(BooleanBuffer::new(nulls, 0,
filter.count()), null_count)
+ };
+ self.nulls.append_buffer(&nulls);
+ } else {
+ self.nulls.append_n_non_nulls(filter.count());
+ }
+
+ let values = s.values();
+
+ match filter.strategy() {
+ IterationStrategy::Indices(indices) => {
+ self.current.extend(indices.iter().map(|&idx| values[idx]));
+ }
+ IterationStrategy::IndexIterator => {
+ self.current.extend(
+ IndexIterator::new(filter.filter_array(), filter.count())
+ .map(|idx| values[idx]),
+ );
+ }
+ IterationStrategy::None
+ | IterationStrategy::All
+ | IterationStrategy::Slices(_)
+ | IterationStrategy::SlicesIterator => unreachable!(),
+ }
+
+ Ok(())
+ }
+
+ fn copy_rows_by_indices(&mut self, indices: &[usize]) -> Result<(),
ArrowError> {
+ self.ensure_capacity();
+
+ let s = self
+ .source
+ .as_ref()
+ .ok_or_else(|| {
+ ArrowError::InvalidArgumentError(
+ "Internal Error: InProgressPrimitiveArray: source not
set".to_string(),
+ )
+ })?
+ .as_primitive::<T>();
+
+ if let Some(nulls) = s.nulls().filter(|nulls| nulls.null_count() > 0) {
+ for &idx in indices {
Review Comment:
I think there should be a path based on iterator here as well?
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