pw42020 opened a new issue, #45972:
URL: https://github.com/apache/arrow/issues/45972
### Describe the bug, including details regarding any error messages,
version, and platform.
Hello, when trying to use the arrow ipc `RecordBatchFileWriter` and
`RecordBatchFileReader` in MATLAB, I get an error when reading back in the file
stating:
```shell
Error in onemore (line 26)
newBatch = reader.read();
Error using libmexclass.proxy.Proxy.create (line 84)
Not an Arrow file
Error in arrow.internal.proxy.create (line 24)
proxy = libmexclass.proxy.Proxy.create(name, args{:});
Error in arrow.io.ipc.RecordBatchFileReader (line 37)
obj.Proxy = arrow.internal.proxy.create(proxyName, args);
Error in onemore (line 23)
reader = arrow.io.ipc.RecordBatchFileReader(fname);
```
### Code to reproduce
```matlab
% Create a MATLAB arrow.Table.
matlabTable = table(...
["foo", "bar", "baz"]', ...
[datetime("today"), datetime("today") + 1, datetime("today")
+ 2]', ...
[10, 20, 30]' ...
);
AT = arrow.table(matlabTable);
% Write the MATLAB arrow.Table to the Arrow IPC File Format on disk.
recordBatch = arrow.recordBatch(AT);
fname = fullfile(pwd, "data.arrow");
writer = arrow.io.ipc.RecordBatchFileWriter(fname, recordBatch.Schema);
writer.writeRecordBatch(recordBatch);
% open record batch file reader
reader = arrow.io.ipc.RecordBatchFileReader(fname);
newBatch = reader.read(1);
```
Similarly, when I attempt to read the ipc file in python, I also get the
same error. However, if I make an ipc file in Python and then attempt to read
in MATLAB, I can read succesfully. Has anyone run into this before?
### Component(s)
Other
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