我的目标是序列化RecordBatch，并通过网络套接字通道发送
并在接收方反序列化。
在接收方，在接收到数据包并重建之后
一个pyarrow.lib.Buffer与pa.py_buffer的对象，我是
无法将其反序列化回RecordBatch。
从websocket的样板开始，这是一个摘要，总结了我正在尝试做的事情：
import pyarrow as pa
indicators = [(1, 'A'), (2, 'B')]
id = pa.int16()
name = pa.string()
data = pa.array(indicators, type=pa.struct([('id', id), ('name', name)]))
batch = pa.RecordBatch.from_arrays([data], ['indicators'])
buffer = batch.serialize()
# How to get back a RecordBatch from buffer?
#
# ???
答案 0 :(得分：1)
使用这种Build options: <truncated>
Executing action 'BazelWorkspaceStatusAction stable-status.txt': unconditional execution is requested.
Executing action 'FileWrite build-info-volatile.h': unconditional execution is requested.
Executing action 'Testing <test-name>': One of the files has changed.
方法时，可以使用serialize函数给出一个已知的模式：
read_record_batch但这意味着您需要了解接收方的模式。要将其封装在序列化数据中，请改用>>> pa.ipc.read_record_batch(buffer, batch.schema)
<pyarrow.lib.RecordBatch at 0x7ff412257278>
：
RecordBatchStreamWriter>>> sink = pa.BufferOutputStream()
>>> writer = pa.RecordBatchStreamWriter(sink, batch.schema)
>>> writer.write_batch(batch)
>>> writer.close()
>>> buf = sink.getvalue()