You can drop partitions from range, interval, list, or composite *-[range | list] partitioned tables. For interval partitioned tables, you can only drop range or interval partitions that have been materialized. For hash partitioned tables, or hash subpartitions of composite *-hash partitioned tables, you must perform a coalesce operation instead.
You cannot drop a partition from a reference-partitioned table. Instead, a drop operation on a parent table cascades to all descendant tables.
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