liukun4515 commented on code in PR #2586:
URL: https://github.com/apache/arrow-rs/pull/2586#discussion_r958433848
##########
arrow-flight/src/lib.rs:
##########
@@ -254,10 +254,17 @@ impl From<SchemaAsIpc<'_>> for FlightData {
}
}
-impl From<SchemaAsIpc<'_>> for SchemaResult {
- fn from(schema_ipc: SchemaAsIpc) -> Self {
- let IpcMessage(vals) = flight_schema_as_flatbuffer(schema_ipc.0,
schema_ipc.1);
- SchemaResult { schema: vals }
+impl TryFrom<SchemaAsIpc<'_>> for SchemaResult {
+ type Error = ArrowError;
+
+ fn try_from(schema_ipc: SchemaAsIpc) -> ArrowResult<Self> {
Review Comment:
> @liukun4515 can you explain? MessageSerializer does add the continuation
token.
Sorry for that, I go deep through the implementation
`MessageSerializer.serialize` and find below code
```
if (!option.write_legacy_ipc_format) {
out.writeIntLittleEndian(IPC_CONTINUATION_TOKEN);
}
out.writeIntLittleEndian(messageLength);
out.write(messageBuffer);
out.align();
```
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