o

org.apache.kyuubi.sql

InferRebalanceAndSortOrders

object InferRebalanceAndSortOrders

Infer the columns for Rebalance and Sort to improve the compression ratio.

For example

INSERT INTO TABLE t PARTITION(p='a')
SELECT * FROM t1 JOIN t2 on t1.c1 = t2.c1

the inferred columns are: t1.c1

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Type Members

  1. type PartitioningAndOrdering = (Seq[Expression], Seq[Expression])

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  1. final def !=(arg0: Any): Boolean
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  10. def hashCode(): Int
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  11. def infer(plan: LogicalPlan): Option[PartitioningAndOrdering]
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