Hierarchical continuous aggregate fails with incompatible bucket width

URL: llms-txt#hierarchical-continuous-aggregate-fails-with-incompatible-bucket-width

If you attempt to create a hierarchical continuous aggregate, you must use compatible time buckets. You can't create a continuous aggregate with a fixed-width time bucket on top of a continuous aggregate with a variable-width time bucket. For more information, see the restrictions section in [hierarchical continuous aggregates][h-caggs-restrictions].

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