Current state: Discarded (covered via KIP-258)
Discussion thread: here
Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).
Taken from related issue:
Currently, when querying state store, it is not clear when the key was updated last. The ides of this JIRA is to make the latest update timestamp for each key-value-pair of the state store accessible.
For example, this might be useful to
- check if a value was update but did not changed (just compare the update TS)
- if you want to consider only recently updated keys
We propose add a new interface
KeyContext which will keep info about key. We can include more methods inside this context as well.
Compatibility, Deprecation, and Migration Plan