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decode_delta_length

parquet::column::reader::legacy_fixed_len_byte_array

Function decode_delta_length 

Source 
pub(super) fn decode_delta_length(
    data: Bytes,
    num_values: usize,
    type_length: usize,
    expected_len: usize,
) -> Result<Bytes>
Expand description

Validate the BYTE_ARRAY-only delta-length representation and return its contiguous fixed-width values. The caller supplies the overflow-checked canonical payload size and passes the returned value section to PLAIN.