Is it possible for an end user to query the state of the database at any time in the past using the GraphQL±?
A normal query would fetch the latest values from Dgraph. A client could also specify a startTs to fetch the values from an earlier timestamp. Access to earlier timestamps disappears over time to make space for newer values.
i dont understand, can you define past?
i thought all records stored are considerred permanent especially datetime field?
@qiuwei is querying the previous versions of the database a feature you’d like? This is currently not possible, but we could add a flag that would make it possible to query across all the different versions. Currently Dgraph cleans up stale versions to make space for new ones.
@u007 I’m my previous post I was referring to the MVCC model used in Dgraph. Every transaction creates a new version of the database that can be referred to by its timestamp. I was not referring to how data is stored or any particular predicate types.
i see :). so its about the old data / some kind of versions of the data
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