Function polars::export::arrow::io::parquet::write::row_group_iter

source · [−]

pub fn row_group_iter<A>(
    chunk: Chunk<A>, 
    encodings: Vec<Encoding, Global>, 
    columns: Vec<ColumnDescriptor, Global>, 
    options: WriteOptions
) -> DynIter<'static, Result<DynStreamingIterator<'static, CompressedPage, ArrowError>, ArrowError>>ⓘNotable traits for DynIter<'a, V>impl<'a, V> Iterator for DynIter<'a, V>    type Item = V; where
    A: 'static + AsRef<dyn Array + 'static> + Send + Sync,

This is supported on crate feature io_parquet only.

Expand description

Maps a Chunk and parquet-specific options to an RowGroupIter used to write to parquet