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Researchers have found a way to get these virtual photons to influence the behavior of a superconductor, ultimately making it worse. That may, in the end, tell us something useful about superconductivity, but it'll probably take a little while.
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Importantly, parts belonging to different partitions are never merged. If a key of high cardinality, e.g., date_time_ms, is chosen as a partition key then parts spread across thousands of folders will never be merge candidates - exceeding preconfigured limits and causing the "Too many inactive parts (N). Parts cleaning are processing significantly slower than inserts" error on subsequent INSERTs. Addressing this problem is simple: choose a partition key with cardinality