case class ClusteredDistribution(clustering: Seq[Expression], requiredNumPartitions: Option[Int] = None) extends Distribution with Product with Serializable
Represents data where tuples that share the same values for the clustering
Expressions will be co-located in the same partition.
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- new ClusteredDistribution(clustering: Seq[Expression], requiredNumPartitions: Option[Int] = None)
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- val clustering: Seq[Expression]
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def
createPartitioning(numPartitions: Int): Partitioning
Creates a default partitioning for this distribution, which can satisfy this distribution while matching the given number of partitions.
Creates a default partitioning for this distribution, which can satisfy this distribution while matching the given number of partitions.
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- ClusteredDistribution → Distribution
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val
requiredNumPartitions: Option[Int]
The required number of partitions for this distribution.
The required number of partitions for this distribution. If it's None, then any number of partitions is allowed for this distribution.
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