跨分区rollup是怎么处理的? #7305
boluochuile
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RFC
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In your case, currently Doris can not support rollup to month and year. Because the rollup table is partitioned by day. |
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base表中有年、月、周和日四种日期维度,分区键为dt(日)。
现在为了满足周维度的数据聚合创建了一个聚合到周粒度的rollup,也即是rollup表中不存在分区键dt了,只剩周、月、年三种时间维度,
那么对于这种跨分区聚合的rollup在Doris里面是怎么实现的呢?这种rollup还有分区键吗?
本人目前看了一些资料,感觉这种rollup底层其实还是以dt进行分区存储的?并不能按周粒度聚合后的数据进行存储?
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