JoinSelectionHelper¶

canBroadcastBySize¶

canBroadcastBySize(
  plan: LogicalPlan,
  conf: SQLConf): Boolean

canBroadcastBySize...FIXME

canBroadcastBySize is used when:

• InjectRuntimeFilter logical optimization is executed (and injectInSubqueryFilter and isProbablyShuffleJoin)
• JoinSelectionHelper is requested to getBroadcastBuildSide
• JoinSelection execution planning strategy is executed

getBroadcastBuildSide¶

getBroadcastBuildSide(
  left: LogicalPlan,
  right: LogicalPlan,
  joinType: JoinType,
  hint: JoinHint,
  hintOnly: Boolean,
  conf: SQLConf): Option[BuildSide]

getBroadcastBuildSide...FIXME

getBroadcastBuildSide is used when:

• JoinSelectionHelper is requested to canPlanAsBroadcastHashJoin
• JoinSelection execution planning strategy is executed

canPlanAsBroadcastHashJoin¶

canPlanAsBroadcastHashJoin(
  join: Join,
  conf: SQLConf): Boolean

canPlanAsBroadcastHashJoin...FIXME

canPlanAsBroadcastHashJoin is used when:

• PushDownLeftSemiAntiJoin logical optimization is executed

hintToSortMergeJoin¶

hintToSortMergeJoin(
  hint: JoinHint): Boolean

hintToSortMergeJoin is enabled (true) when either the left or the right side of the join contains SHUFFLE_MERGE hint.

hintToSortMergeJoin is used when:

• PushDownLeftSemiAntiJoin logical optimization is executed