7/15/2026 at 3:46:50 PM
by lichtenberger
7/15/2026 at 11:28:12 PM
Im developing something vaguely in the same space (tamper proof audit log) - (or several things since I also have a custom temporal object mapper for postgres); what is the advantage of this project? It doesnt seem sql-compliant (afaik bitemporal operations are part of the SQL-2011 standard), and what this could add -tamper detection - seems absent. Not criticizing, just trying to understand the use case.by aforwardslash
7/15/2026 at 9:52:18 PM
Besides, documents are split into fine granular nodes, so we have "no" upper limit besides running out of 48bit nodeKeys/node identifiers at some point maybe.Furthermore, a (versioned, as always) path summary keeps track of all distinct paths, which is a key ingredient for the optional secondary indexes, which can index paths or paths and content among other stuff as simply indexing fields. Optionally you can also add indexes to speed up aggregate queries (which are basically column projections).
Furthermore, the whole storage can self-validate through checksums stored in parent pages up to the root as in ZFS for instance.
DeweyIDs can be optionally stored for each node, which can speed up the comparison of subtrees between revisions (in order to detect simply which changesets belong to a certain subtree without having to traverse ancestor chains). They lend themselves well for compression.
We even have importers which can identify based on heuristics minimal edit operations to import existing revisions of XML or JSON documents and to commit these with hopefully a minimal or close to minimal set of update operations, but it depends heavily on the data.
by lichtenberger