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by assface
3697 days ago
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> I think Datomic which has been doing time series data for years now answers the "what’s the big deal" question for me: This is known as "time travel queries". Postgres supported this back in the original version from the 1980s but then they took it out in 1997 because it takes up too much disk space. It's trivial to do in an MVCC system. You just turn off garbage collection (vacuuming in PSQL parlance). |
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