Function parquet2::page::split_buffer_v1

pub fn split_buffer_v1(
    buffer: &[u8],
    has_rep: bool,
    has_def: bool
) -> Result<(&[u8], &[u8], &[u8])>

Splits the page buffer into 3 slices corresponding to (encoded rep levels, encoded def levels, encoded values) for v1 pages.