nevi-me commented on a change in pull request #8204:
URL: https://github.com/apache/arrow/pull/8204#discussion_r490879919
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File path: rust/arrow/src/compute/kernels/boolean.rs
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@@ -123,9 +125,78 @@ pub fn not(left: &BooleanArray) -> Result<BooleanArray> {
Ok(BooleanArray::from(Arc::new(data)))
}
+pub fn is_null(input: &ArrayRef) -> Result<BooleanArray> {
+ if input.offset() % 8 != 0 {
Review comment:
Oh yes, I remember that now. I tried looking at bit manipulation that
would address this, but I can't remember where; maybe as part of the Parquet
writer 🤔
It's def something that we need to do, if I have more time in the coming
months I'll look into it. We could also take inspiration from c++ as I think
they have this.
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