Function polars::export::arrow::io::parquet::read::column_iter_to_arrays

pub fn column_iter_to_arrays<'a, I>(
    columns: Vec<I, Global>, 
    types: Vec<&ParquetType, Global>, 
    field: Field, 
    chunk_size: usize
) -> Result<Box<dyn Iterator<Item = Result<Arc<dyn Array + 'static>, ArrowError>> + Send + Sync + 'a, Global>, ArrowError> where
    I: 'a + DataPages, 

This is supported on crate feature io_parquet only.

An iterator adapter that maps multiple iterators of DataPages into an iterator of Arrays.

The arrays are guaranteed to be at most of size chunk_size and data type field.data_type.