viirya opened a new issue, #3250:
URL: https://github.com/apache/arrow-rs/issues/3250
**Describe the bug**
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A clear and concise description of what the bug is.
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There are more inconsistency between `can_cast_types` and
`cast_with_options` that is `cast_with_options` can cast but `can_cast_types`
reports `false`.
For example,
1. Casting from Dictionary of Integer to DecimalArray
```
thread 'test_can_cast_types' panicked at 'Was able to cast array
DictionaryArray {keys: PrimitiveArray<Int8>
[
0,
1,
] values: PrimitiveArray<Int32>
[
1,
2,
]}
from Dictionary(Int8, Int32) to Decimal128(38, 0) but can_cast_types
reported false', arrow/tests/array_cast.rs:83:21
```
2. Casting from List of some type (e.g., Integer) to Dictionary of Utf8
```
thread 'test_can_cast_types' panicked at 'Was not able to cast array
ListArray
[
PrimitiveArray<Int32>
[
0,
1,
2,
],
PrimitiveArray<Int32>
[
3,
4,
5,
],
PrimitiveArray<Int32>
[
6,
7,
],
] from List(Field { name: "item", data_type: Int32, nullable: true, dict_id:
0, dict_is_ordered: false, metadata: {} }) to Dictionary(Int16, Utf8) but
can_cast_types reported true. Error was CastError("Cannot cast list to non-list
data types")', arrow/tests/array_cast.rs:87:21
```
**To Reproduce**
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**Expected behavior**
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**Additional context**
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