alamb commented on pull request #1677:
URL:
https://github.com/apache/arrow-datafusion/pull/1677#issuecomment-1022514994
What if we changed the signature to something like the following (where the
inputs are already provided)?
```rust
/// Describes something that knows how to serialize / deserialize the
/// contents of DataFusion user defined extension points
pub trait ExtensionSerializer {
/// Serializes a [UserDefinedLogicalNode] into an opaque set of
/// bytes for transport over the network
fn serialize_extension_node(node: &dyn UserDefinedLogicalNode, inputs:
Vec<LogicalNode>) -> Result<Bytes, BallistaError>;
//....
}
```
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