Dandandan commented on issue #6050:
URL:
https://github.com/apache/arrow-datafusion/issues/6050#issuecomment-1514588857
It doesn't really clone the data right? It clones `RecordBatch` which
shouldn't be that expensive (cloning the `Vec` probably the most expensive when
having many columns).
```
pub struct RecordBatch {
schema: SchemaRef,
columns: Vec<Arc<dyn Array>>,
/// The number of rows in this RecordBatch
///
/// This is stored separately from the columns to handle the case of no
columns
row_count: usize,
}
```
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