trait DeltaSparkPlanUtils extends AnyRef
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- type PlanOrExpression = Either[LogicalPlan, Expression]
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- final def !=(arg0: Any): Boolean
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- def collectFirst[In, Out](input: Iterable[In], recurse: (In) => Option[Out]): Option[Out]
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- def containsDeterministicUDF(expr: Expression): Boolean
Returns whether an expression contains any deterministic UDFs.
- def containsDeterministicUDF(predicates: Seq[DeltaTableReadPredicate], partitionedOnly: Boolean): Boolean
Returns whether the read predicates of a transaction contain any deterministic UDFs.
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- def findFirstNonDeltaScan(source: LogicalPlan): Option[LogicalPlan]
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- def findFirstNonDeterministicChildNode(children: Seq[Expression], checkDeterministicOptions: CheckDeterministicOptions): Option[PlanOrExpression]
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- def findFirstNonDeterministicNode(child: Expression, checkDeterministicOptions: CheckDeterministicOptions): Option[PlanOrExpression]
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- def findFirstNonDeterministicNode(plan: LogicalPlan, checkDeterministicOptions: CheckDeterministicOptions): Option[PlanOrExpression]
Returns a part of the
planthat does not have a safe level of determinism.Returns a part of the
planthat does not have a safe level of determinism. This is a conservative approximation ofplanbeing a truly deterministic query.- Attributes
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- def planContainsOnlyDeltaScans(source: LogicalPlan): Boolean
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- def planContainsUdf(plan: LogicalPlan): Boolean
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- def planIsDeterministic(plan: LogicalPlan, checkDeterministicOptions: CheckDeterministicOptions): Boolean
Returns
trueifplanhas a safe level of determinism.Returns
trueifplanhas a safe level of determinism. This is a conservative approximation ofplanbeing a truly deterministic query.- Attributes
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- object SubqueryExpression
Extractor object for the subquery plan of expressions that contain subqueries.