Function libduckdb_sys::duckdb_value_blob

pub unsafe extern "C" fn duckdb_value_blob(
    result: *mut duckdb_result,
    col: idx_t,
    row: idx_t
) -> duckdb_blob

returns: The duckdb_blob value at the specified location. Returns a blob with blob.data set to nullptr if the value cannot be converted. The resulting field “blob.data” must be freed with duckdb_free.