I've been very curious to explore this type of use case with askgit (https://github.com/augmentable-dev/askgit) which was designed for running simple "slice and dice" queries and aggregations on git history (and change stats) for basic analytical purposes. I've been curious about how this could be applied to a small text+git based "db". Say, for a regular json or CSV dumps.

This also reminds me of Dolt: https://github.com/dolthub/dolt which I believe has been on HN a couple times