ALTER TABLE table_name ADD PARTITION partition_column | hidden_partition_spechidden_partition_spec:Supported transformations are:years(ts): partition by yearmonths(ts): partition by monthdays(ts) or date(ts): equivalent to dateint partitioninghours(ts) or date_hour(ts): equivalent to dateint and hour partitioningbucket(N, col): partition by hashed value mod N bucketstruncate(L, col): partition by value truncated to LStrings are truncated to the given lengthIntegers and longs truncate to bins: truncate(10, i) produces partitions 0, 10, 20, 30, …
table_name:需要的表名字。partition_column:分区列。ALTER TABLE prod.db.sample DROP PARTITION FIELD catalogALTER TABLE prod.db.sample DROP PARTITION FIELD bucket(16, id)ALTER TABLE prod.db.sample DROP PARTITION FIELD truncate(data, 4)ALTER TABLE prod.db.sample DROP PARTITION FIELD years(ts)ALTER TABLE prod.db.sample DROP PARTITION FIELD shard
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