andygrove opened a new issue, #2144:
URL: https://github.com/apache/datafusion-comet/issues/2144
### Describe the bug
Claude Code suggested that there is a bug in the following code. We should
investigate and either implement a fix or add documentation explaining why it
is safe.
**Location**: `native/core/src/execution/utils.rs`
```rust
// Check if the pointer alignment is correct.
if array_ptr.align_offset(array_align) != 0 ||
schema_ptr.align_offset(schema_align) != 0 {
unsafe {
std::ptr::write_unaligned(array_ptr, FFI_ArrowArray::new(self));
std::ptr::write_unaligned(schema_ptr,
FFI_ArrowSchema::try_from(self.data_type())?);
}
}
```
**Risk**: Misaligned memory access can cause:
- Performance degradation
- Potential crashes on architectures that require alignment
- Undefined behavior
**Mitigation**: Code properly handles both aligned and unaligned cases
### Steps to reproduce
_No response_
### Expected behavior
_No response_
### Additional context
_No response_
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