comphead commented on code in PR #23306:
URL: https://github.com/apache/datafusion/pull/23306#discussion_r3522169560
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datafusion/functions-nested/src/resize.rs:
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@@ -342,12 +350,27 @@ where
)?))
}
+/// Largest element count whose eager value buffer stays within `isize::MAX`
+/// bytes, so `array_resize` rejects oversized results instead of panicking.
+/// Only primitive and `FixedSizeBinary` leaves are byte-exact.
+fn max_resize_values(value_type: &DataType) -> usize {
Review Comment:
the compiler prob materialize it, but would it be better to prematerialize
it manually through
`static LazyLock<HashMap<DataType, usize>>` ?
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