This might be of interest: https://clickhouse.yandex/
ClickHouse is an open-source column-oriented database management
system that allows generating analytical data reports in real time.
ClickHouse manages extremely large volumes of data in a stable and
sustainable manner. It currently powers Yandex.Metrica, world’s second
largest web analytics platform, with over 13 trillion database records
and over 20 billion events a day, generating customized reports
on-the-fly, directly from non-aggregated data. This system was
successfully implemented at CERN’s LHCb experiment to store and
process metadata on 10bn events with over 1000 attributes per event
registered in 2011.
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