Method upsert

nodedb-columnar/src/pk_index.rs:73–75

Insert or overwrite a PK → location mapping (used during compaction remap).

(&mut self, pk_bytes: Vec<u8>, location: RowLocation)

    /// Insert or overwrite a PK → location mapping (used during compaction remap).
    pub fn upsert(&mut self, pk_bytes: Vec<u8>, location: RowLocation) {
        self.inner.insert(pk_bytes, location);
    }

    /// Look up a row location by PK.
    pub fn get(&self, pk_bytes: &[u8]) -> Option<&RowLocation> {