scovich opened a new issue, #8420:
URL: https://github.com/apache/arrow-rs/issues/8420
**Describe the bug**
When converting strongly-typed arrow arrays to binary variant,
`typed_value_to_variant` has the following code, which unconditionally treats
all 16-byte values as UUID:
```rust
DataType::FixedSizeBinary(binary_len) => {
let array = typed_value.as_fixed_size_binary();
// Try to treat 16 byte FixedSizeBinary as UUID
let value = array.value(index);
if *binary_len == 16 {
if let Ok(uuid) = Uuid::from_slice(value) {
return Variant::from(uuid);
}
}
let value = array.value(index);
Variant::from(value)
}
```
**To Reproduce**
Create a `FixedSizeBinaryArray` with length 16 and convert to variant.
**Expected behavior**
UUIDs should only be produced if the UUID extension type is present.
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