gabotechs commented on code in PR #16816:
URL: https://github.com/apache/datafusion/pull/16816#discussion_r2221469424
##########
datafusion/functions-aggregate/src/array_agg.rs:
##########
@@ -315,11 +313,7 @@ impl Accumulator for ArrayAggAccumulator {
};
if !val.is_empty() {
- // The ArrayRef might be holding a reference to its original input
buffer, so
- // storing it here directly copied/compacted avoids over
accounting memory
- // not used here.
- self.values
- .push(make_array(copy_array_data(&val.to_data())));
Review Comment:
After this change
https://github.com/apache/datafusion/pull/16816/files#diff-614f73bd02b93c736f118e06e15d6ebfbb8c570b2f9f21f969659e7a04ab843aL381-R375,
not needed.
https://github.com/apache/datafusion/pull/16519 introduced compacting in
this same aggregate function in other missing places, but we found out that it
was very inefficient, so it hasn't been merged, so this is the alternative
solution.
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