timsaucer commented on code in PR #18672:
URL: https://github.com/apache/datafusion/pull/18672#discussion_r2553158027
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datafusion/ffi/src/udaf/accumulator.rs:
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@@ -173,9 +177,11 @@ unsafe extern "C" fn retract_batch_fn_wrapper(
}
unsafe extern "C" fn release_fn_wrapper(accumulator: &mut FFI_Accumulator) {
- let private_data =
- Box::from_raw(accumulator.private_data as *mut AccumulatorPrivateData);
- drop(private_data);
+ if !accumulator.private_data.is_null() {
Review Comment:
I'll update the README to describe why this is necessary.
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