Packages

object PartitionPruning extends Rule[LogicalPlan] with PredicateHelper

Dynamic partition pruning optimization is performed based on the type and selectivity of the join operation. During query optimization, we insert a predicate on the filterable table using the filter from the other side of the join and a custom wrapper called DynamicPruning.

The basic mechanism for DPP inserts a duplicated subquery with the filter from the other side, when the following conditions are met: (1) the table to prune is filterable by the JOIN key (2) the join operation is one of the following types: INNER, LEFT SEMI, LEFT OUTER (partitioned on right), or RIGHT OUTER (partitioned on left)

In order to enable partition pruning directly in broadcasts, we use a custom DynamicPruning clause that incorporates the In clause with the subquery and the benefit estimation. During query planning, when the join type is known, we use the following mechanism: (1) if the join is a broadcast hash join, we replace the duplicated subquery with the reused results of the broadcast, (2) else if the estimated benefit of partition pruning outweighs the overhead of running the subquery query twice, we keep the duplicated subquery (3) otherwise, we drop the subquery.

Linear Supertypes
PredicateHelper, AliasHelper, Rule[LogicalPlan], Logging, SQLConfHelper, AnyRef, Any
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  1. PartitionPruning
  2. PredicateHelper
  3. AliasHelper
  4. Rule
  5. Logging
  6. SQLConfHelper
  7. AnyRef
  8. Any
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Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def apply(plan: LogicalPlan): LogicalPlan
    Definition Classes
    PartitionPruning → Rule
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def buildBalancedPredicate(expressions: Seq[Expression], op: (Expression, Expression) => Expression): Expression
    Attributes
    protected
    Definition Classes
    PredicateHelper
  7. def canEvaluate(expr: Expression, plan: LogicalPlan): Boolean
    Attributes
    protected
    Definition Classes
    PredicateHelper
  8. def canEvaluateWithinJoin(expr: Expression): Boolean
    Attributes
    protected
    Definition Classes
    PredicateHelper
  9. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  10. def conf: SQLConf
    Definition Classes
    SQLConfHelper
  11. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  12. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  13. def extractPredicatesWithinOutputSet(condition: Expression, outputSet: AttributeSet): Option[Expression]
    Attributes
    protected
    Definition Classes
    PredicateHelper
  14. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  15. def findExpressionAndTrackLineageDown(exp: Expression, plan: LogicalPlan): Option[(Expression, LogicalPlan)]
    Definition Classes
    PredicateHelper
  16. def getAliasMap(exprs: Seq[NamedExpression]): AttributeMap[Alias]
    Attributes
    protected
    Definition Classes
    AliasHelper
  17. def getAliasMap(plan: Aggregate): AttributeMap[Alias]
    Attributes
    protected
    Definition Classes
    AliasHelper
  18. def getAliasMap(plan: Project): AttributeMap[Alias]
    Attributes
    protected
    Definition Classes
    AliasHelper
  19. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  20. def getFilterableTableScan(a: Expression, plan: LogicalPlan): Option[LogicalPlan]

    Searches for a table scan that can be filtered for a given column in a logical plan.

    Searches for a table scan that can be filtered for a given column in a logical plan.

    This methods tries to find either a v1 partitioned scan for a given partition column or a v2 scan that support runtime filtering on a given attribute.

  21. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  22. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  23. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  24. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  25. def isNullIntolerant(expr: Expression): Boolean
    Attributes
    protected
    Definition Classes
    PredicateHelper
  26. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  27. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  28. def logDebug(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  29. def logDebug(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  30. def logError(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  31. def logError(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  32. def logInfo(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  33. def logInfo(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  34. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  35. def logTrace(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  36. def logTrace(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  37. def logWarning(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  38. def logWarning(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  39. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  40. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  41. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  42. def outputWithNullability(output: Seq[Attribute], nonNullAttrExprIds: Seq[ExprId]): Seq[Attribute]
    Attributes
    protected
    Definition Classes
    PredicateHelper
  43. def replaceAlias(expr: Expression, aliasMap: AttributeMap[Alias]): Expression
    Attributes
    protected
    Definition Classes
    AliasHelper
  44. def replaceAliasButKeepName(expr: NamedExpression, aliasMap: AttributeMap[Alias]): NamedExpression
    Attributes
    protected
    Definition Classes
    AliasHelper
  45. lazy val ruleId: RuleId
    Attributes
    protected
    Definition Classes
    Rule
  46. val ruleName: String
    Definition Classes
    Rule
  47. def splitConjunctivePredicates(condition: Expression): Seq[Expression]
    Attributes
    protected
    Definition Classes
    PredicateHelper
  48. def splitDisjunctivePredicates(condition: Expression): Seq[Expression]
    Attributes
    protected
    Definition Classes
    PredicateHelper
  49. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  50. def toString(): String
    Definition Classes
    AnyRef → Any
  51. def trimAliases(e: Expression): Expression
    Attributes
    protected
    Definition Classes
    AliasHelper
  52. def trimNonTopLevelAliases[T <: Expression](e: T): T
    Attributes
    protected
    Definition Classes
    AliasHelper
  53. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  54. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  55. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from PredicateHelper

Inherited from AliasHelper

Inherited from Rule[LogicalPlan]

Inherited from Logging

Inherited from SQLConfHelper

Inherited from AnyRef

Inherited from Any

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