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  • package root
    Definition Classes
    root
  • package org
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    root
  • package apache
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    org
  • package spark
    Definition Classes
    apache
  • package sql
    Definition Classes
    spark
  • package catalyst

    Catalyst is a library for manipulating relational query plans.

    Catalyst is a library for manipulating relational query plans. All classes in catalyst are considered an internal API to Spark SQL and are subject to change between minor releases.

    Definition Classes
    sql
  • package optimizer
    Definition Classes
    catalyst
  • object PushLeftSemiLeftAntiThroughJoin extends Rule[LogicalPlan] with PredicateHelper

    This rule is a variant of PushPredicateThroughJoin which can handle pushing down Left semi and Left Anti joins below a join operator.

    This rule is a variant of PushPredicateThroughJoin which can handle pushing down Left semi and Left Anti joins below a join operator. The allowable join types are: 1) Inner 2) Cross 3) LeftOuter 4) RightOuter

    TODO: Currently this rule can push down the left semi or left anti joins to either left or right leg of the child join. This matches the behaviour of PushPredicateThroughJoin when the lefi semi or left anti join is in expression form. We need to explore the possibility to push the left semi/anti joins to both legs of join if the join condition refers to both left and right legs of the child join.

    Definition Classes
    optimizer
  • AllowedJoin
  • PushdownDirection

object AllowedJoin

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