Experiment with duckdb for persistence

[ecomodeller]

Experiment with storing the matched data of a Comparer in a duckdb file.

Pretty straightforward to inspect:

>>> import duckdb
>>> con = duckdb.connect("test.db")
>>> con.sql("SHOW TABLES")
┌─────────┐
│  name   │
│ varchar │
├─────────┤
│ data    │
└─────────┘

>>> con.sql("Select * from data")
┌─────────────────────┬─────────────┬────────┬────────┐
│        time         │ Observation │   m1   │   m2   │
│    timestamp_ns     │   double    │ double │ double │
├─────────────────────┼─────────────┼────────┼────────┤
│ 2019-01-01 00:00:00 │         1.0 │    1.5 │    1.1 │
│ 2019-01-02 00:00:00 │         2.0 │    2.4 │    2.2 │
│ 2019-01-03 00:00:00 │         3.0 │    3.6 │    3.1 │
│ 2019-01-04 00:00:00 │         4.0 │    4.9 │    4.2 │
│ 2019-01-05 00:00:00 │         5.0 │    5.6 │    4.9 │
└─────────────────────┴─────────────┴────────┴────────┘

[ecomodeller]

Conclusion: not as easy as persisting to NetCDF. Closing this experiment.