pub fn prune_additional_cols(
chunk: &StreamChunk,
to_prune_indices: &[usize],
column_descs: &[SourceColumnDesc],
) -> StreamChunkpub fn prune_additional_cols(
chunk: &StreamChunk,
to_prune_indices: &[usize],
column_descs: &[SourceColumnDesc],
) -> StreamChunk