pub fn merge_sstables<'a, K, V, Q>(
    sstables: &'a [SSTable<K, V>],
    k_lo: Option<&'a Q>,
    k_hi: Option<&'a Q>
) -> impl 'a + Iterator<Item = Result<(K, V)>>
where K: Deser + Ord + PartialOrd<Q>, V: Deser,
Expand description

@arg sstables: From older to newer. (The opposite of the convention in [pancake_engine_common::merging].)