Method get_change_seq

atomic-core/src/pristine/txn/read.rs:390–398

(&self, view: &ViewState, change_id: NodeId)

    }

    fn get_change_seq(&self, view: &ViewState, change_id: NodeId) -> PristineResult<Option<u64>> {
        let table = self.txn.open_table(REV_VIEW_CHANGES)?;
        let key = encode_view_seq(view.id, change_id.get());
        let result = table.get(&key)?;
        match result {
            Some(value) => Ok(Some(value.value())),
            None => Ok(None),
        }
    }

    fn get_change_at_seq(&self, view: &ViewState, seq: u64) -> PristineResult<Option<NodeId>> {
        let table = self.txn.open_table(VIEW_CHANGES)?;