msalib opened a new issue, #1927:
URL: https://github.com/apache/arrow-rs/issues/1927
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**
Now (as of version 15.0) that we can use `std::io::Writer` implementers with
`parquet::arrow::arrow_writer::ArrowWriter`, we can just use `std::io::Cursor`
instead of the now deleted `InMemoryWriteableCursor`. But there are no docs or
examples of how to do that.
**Describe the solution you'd like**
I'd love to see just a tiny doc example showing that use case, something
like this:
```rust
fn batch_to_bytes(batch: &RecordBatch) -> Result<Vec<u8>> {
let mut buffer = std::io::Cursor::new(vec![]);
let mut writer = ArrowWriter::try_new(&mut buffer, batch.schema(),
None)?;
writer.write(&batch)?;
writer.close()?;
Ok(buffer.into_inner())
}
```
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