tustvold opened a new issue, #1978:
URL: https://github.com/apache/arrow-rs/issues/1978
**Describe the bug**
PrimitiveBuilder::finish_dict does not validate that the provided values
array contains enough values for the largest key in the dictionary
**To Reproduce**
```
#[test]
fn test_primitive_array_builder_dict() {
let mut builder = Int32Array::builder(10);
builder.append_value(1).unwrap();
let values = Arc::new(Int32Array::from_iter_values([0]));
let dict = builder.finish_dict(values);
}
```
**Expected behavior**
It should not be possible to construct invalid ArrayData with safe APIs
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