oridag opened a new issue, #6598:
URL: https://github.com/apache/arrow-datafusion/issues/6598
### Is your feature request related to a problem or challenge?
Required to allow transformations the produce complex structured data
### Describe the solution you'd like
Allow structs and array within a struct expression
### Describe alternatives you've considered
_No response_
### Additional context
Currently, only primitive types are supported:
```rust
/// Currently supported types by the struct function.
pub static SUPPORTED_STRUCT_TYPES: &[DataType] = &[
DataType::Boolean,
DataType::UInt8,
DataType::UInt16,
DataType::UInt32,
DataType::UInt64,
DataType::Int8,
DataType::Int16,
DataType::Int32,
DataType::Int64,
DataType::Float32,
DataType::Float64,
DataType::Utf8,
DataType::LargeUtf8,
];
```
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