joroKr21 commented on code in PR #15544:
URL: https://github.com/apache/datafusion/pull/15544#discussion_r2065610845
##########
datafusion/functions-aggregate/src/array_agg.rs:
##########
@@ -288,10 +300,23 @@ impl Accumulator for ArrayAggAccumulator {
return internal_err!("expects single batch");
}
- let val = Arc::clone(&values[0]);
+ let val = &values[0];
+ let nulls = if self.ignore_nulls {
+ val.logical_nulls()
+ } else {
+ None
+ };
+
+ let val = match nulls {
+ Some(nulls) if nulls.null_count() >= val.len() => return Ok(()),
Review Comment:
It shouldn't be - I guess we can use `==` but does it make a difference?
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