comphead commented on code in PR #8142:
URL: https://github.com/apache/arrow-datafusion/pull/8142#discussion_r1392906610
##########
datafusion/physical-expr/src/array_expressions.rs:
##########
@@ -564,13 +564,30 @@ pub fn array_slice(args: &[ArrayRef]) -> Result<ArrayRef>
{
define_array_slice(list_array, key, extra_key, false)
}
+fn general_array_pop(
+ list_array: &GenericListArray<i32>,
+ from_back: bool,
+) -> Result<(Vec<i64>, Vec<i64>)> {
+ if from_back {
+ let key = vec![0; list_array.len()];
+ let extra_key: Vec<_> = list_array
+ .iter()
+ .map(|x| x.map_or(0, |arr| arr.len() as i64 - 1))
+ .collect();
+ Ok((key, extra_key))
+ } else {
+ let key: Vec<_> = list_array.iter().map(|x| x.map_or(0, |_arr|
2)).collect();
Review Comment:
```suggestion
let key: Vec<_> = list_array.iter().map(|x| x.map_or(0, |_|
2)).collect();
```
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