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Baserow
Open source no-code database and Airtable alternative. Create your own online database without technical experience. Performant with high volumes of data, can be self hosted and supports plugins (by bramw)
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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.
You are right, that is not yet possible. I can imagine that it is a must have feature. It is scheduled to be released before the end of this month. It is already on the backlog in the 1.1 milestone. https://gitlab.com/bramw/baserow/-/issues/100
NOTE:
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Hence, a higher number means a more popular project.