XiangpengHao opened a new issue, #7058:
URL: https://github.com/apache/arrow-rs/issues/7058
**Describe the bug**
<!--
A clear and concise description of what the bug is.
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The following test case should pass, but it errors:
```
thread 'tests::test_dict_schema' panicked at arrow-flight/src/lib.rs:851:56:
called `Result::unwrap()` on an `Err` value: ParseError("Unable to convert
flight info to a message: Type `i64` at position 100 is unaligned.\n\twhile
verifying table field `id` at position 100\n\twhile verifying table field
`dictionary` at position 76\n\twhile verifying vector element 1 at position
56\n\twhile verifying table field `fields` at position 44\n\t while verifying
union variant `MessageHeader::Schema` at position 24\n\twhile verifying table
field `header` at position 24\n\n")
```
**To Reproduce**
<!--
Steps to reproduce the behavior:
-->
```rust
#[test]
fn test_dict_schema() {
let schema = Schema::new(vec![
Field::new(
"a",
DataType::Dictionary(Box::new(DataType::UInt16),
Box::new(DataType::Utf8)),
false,
),
Field::new(
"b",
DataType::Dictionary(Box::new(DataType::UInt16),
Box::new(DataType::Utf8)),
false,
),
]);
let flight_info =
FlightInfo::new().try_with_schema(&schema).unwrap();
let new_schema = Schema::try_from(flight_info).unwrap();
assert_eq!(schema, new_schema);
}
```
**Expected behavior**
<!--
A clear and concise description of what you expected to happen.
-->
If the schema only has one dictionary, it would work just fine.
**Additional context**
<!--
Add any other context about the problem here.
-->
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