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Erik Erlandson commented on SPARK-2991: --------------------------------------- This RFE now has a [pull-req|https://github.com/willb/silex/pull/28] against the 3rd-party [silex|https://github.com/willb/silex] library: https://github.com/willb/silex/pull/28 > RDD transforms for scan and scanLeft > ------------------------------------- > > Key: SPARK-2991 > URL: https://issues.apache.org/jira/browse/SPARK-2991 > Project: Spark > Issue Type: Sub-task > Components: Spark Core > Reporter: Erik Erlandson > Assignee: Erik Erlandson > Priority: Minor > Labels: features > > Provide RDD transforms analogous to Scala scan(z)(f) (parallel prefix scan) > and scanLeft(z)(f) (sequential prefix scan) > Discussion of a scanLeft implementation: > http://erikerlandson.github.io/blog/2014/08/09/implementing-an-rdd-scanleft-transform-with-cascade-rdds/ > Discussion of scan: > http://erikerlandson.github.io/blog/2014/08/12/implementing-parallel-prefix-scan-as-a-spark-rdd-transform/ -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org