Support for CrateDB as storage backend

[amotl]

Hi there.

It is super nice to see a modern open-source sensor data platform being developed in Rust. While I have been an author of the Kotori DAQ (GitHub) in the past ¹, its development has faded a bit, because I work for CrateDB today.

Quoting your README:

Supports various time-series databases such as SQLite, PostgreSQL (with optional TimeScaleDB plugin), DuckDB, ClickHouse, BigQuery, and RRDCached, with the potential to extend support to other databases in the future.

Because I see your project has polyglot ambitions 💯¹, I would be happy to contribute a few ideas about Kotori's integration with Grafana, but in this case wanted to ask if you could imagine integrating CrateDB as another storage backend? Because it is wire-protocol compatible with PostgreSQL, I could imagine some adapter code could be reused, with "just a few accompanying dialect adjustments" ;], so the efforts for an implementation might not be too high.

With kind regards,
Andreas.

/cc @seut, @surister

Footnotes

1. Kotori might have had similar ambitions, but settled revolving around InfluxDB (mostly v1), Grafana, and MQTT. ↩ ↩²