Is your feature request related to a problem or challenge?

While reviewing our Sort code, I found Rows is being allocated within RowCursorStream for each batch (via RowConverter::convert_columns)
This involves a number allocations (exponentially allocating based on Vec) for each batch.
We should avoid this and reuse Rows for the stream.

Describe the solution you'd like

Find a way to reuse Rows for the entire stream.

Describe alternatives you've considered

No response

Additional context

No response