Dandandan commented on code in PR #15591:
URL: https://github.com/apache/datafusion/pull/15591#discussion_r2075117009
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datafusion/functions-aggregate-common/src/aggregate/groups_accumulator/prim_op.rs:
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@@ -93,20 +94,27 @@ where
opt_filter: Option<&BooleanArray>,
total_num_groups: usize,
) -> Result<()> {
Review Comment:
yes, i mean block size. I would expect something like batchsize (4-8k), or
maybe even bigger to have lower overhead? Did you run some experiments?
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