Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Fix bug with null buffer offset in boolean not kernel #418

Merged
merged 1 commit into from
Jun 8, 2021
Merged

Fix bug with null buffer offset in boolean not kernel #418

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 14 additions & 1 deletion arrow/src/compute/kernels/boolean.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -376,7 +376,7 @@ pub fn not(left: &BooleanArray) -> Result<BooleanArray> {
let null_bit_buffer = data
.null_bitmap()
.as_ref()
.map(|b| b.bits.slice(left_offset));
.map(|b| b.bits.bit_slice(left_offset, len));

let values = buffer_unary_not(&data.buffers()[0], left_offset, len);

Expand Down Expand Up @@ -813,6 +813,19 @@ mod tests {
assert_eq!(c, expected);
}

#[test]
fn test_bool_array_not_sliced() {
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

For anyone interested, without the code change this test fails in the following way:


---- compute::kernels::boolean::tests::test_bool_array_not_sliced stdout ----
thread 'compute::kernels::boolean::tests::test_bool_array_not_sliced' panicked at 'assertion failed: ceil(offset + len, 8) <= buffer.len() * 8', arrow/src/util/bit_chunk_iterator.rs:33:9


failures:
    compute::kernels::boolean::tests::test_bool_array_not_sliced

let a = BooleanArray::from(vec![None, Some(true), Some(false), None, Some(true)]);
let a = a.slice(1, 4);
let a = a.as_any().downcast_ref::<BooleanArray>().unwrap();
let c = not(&a).unwrap();

let expected =
BooleanArray::from(vec![Some(false), Some(true), None, Some(false)]);

assert_eq!(c, expected);
}

#[test]
fn test_bool_array_and_nulls() {
let a = BooleanArray::from(vec![
Expand Down