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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
IIRC, it's technically implemented already - the "No Entrance" option is implemented as a custom object - however, without the new save format, the list of available station types must be hardcoded.
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