Richard Shin created ARROW-1996: ----------------------------------- Summary: pyarrow.read_serialized cannot read concatenated records Key: ARROW-1996 URL: https://issues.apache.org/jira/browse/ARROW-1996 Project: Apache Arrow Issue Type: Bug Components: Python Affects Versions: 0.8.0 Environment: Linux Reporter: Richard Shin
The following code {quote}import pyarrow as pa f = pa.OSFile('arrow_test', 'w') pa.serialize_to(12, f) pa.serialize_to(23, f) f.close() f = pa.OSFile('arrow_test', 'r') print(pa.read_serialized(f).deserialize()) print(pa.read_serialized(f).deserialize()) f.close() {quote} gives the following result: {quote}$ python pyarrow_test.py First: 12 Traceback (most recent call last): File "pyarrow_test.py", line 10, in <module> print('Second: {}'.format(pa.read_serialized(f).deserialize())) File "pyarrow/serialization.pxi", line 347, in pyarrow.lib.read_serialized (/arrow/python/build/temp.linux-x86_64-2.7/lib.cxx:79159) File "pyarrow/error.pxi", line 77, in pyarrow.lib.check_status (/arrow/python/build/temp.linux-x86_64-2.7/lib.cxx:8270) pyarrow.lib.ArrowInvalid: Expected schema message in stream, was null or length 0 {quote} I would have expected read_serialized to sucessfully read the second value. -- This message was sent by Atlassian JIRA (v7.6.3#76005)