ReduceExpressionsRule.Config (Apache Calcite API)

All Superinterfaces:: RelRule.Config

All Known Subinterfaces:: ReduceExpressionsRule.CalcReduceExpressionsRule.CalcReduceExpressionsRuleConfig, ReduceExpressionsRule.FilterReduceExpressionsRule.FilterReduceExpressionsRuleConfig, ReduceExpressionsRule.JoinReduceExpressionsRule.JoinReduceExpressionsRuleConfig, ReduceExpressionsRule.ProjectReduceExpressionsRule.ProjectReduceExpressionsRuleConfig, ReduceExpressionsRule.WindowReduceExpressionsRule.WindowReduceExpressionsRuleConfig

Enclosing class:: ReduceExpressionsRule<C extends ReduceExpressionsRule.Config>

public static interface ReduceExpressionsRule.Config extends RelRule.Config

Rule configuration.

Method Summary

Modifier and Type

Method

Description

default boolean

matchNullability()

Whether to add a CAST when a nullable expression reduces to a NOT NULL literal.

ReduceExpressionsRule<?>

toRule()

Creates a rule that uses this configuration.

default boolean

treatDynamicCallsAsConstant()

Whether to treat dynamic functions as constants.

ReduceExpressionsRule.Config

withMatchNullability(boolean matchNullability)

Sets matchNullability().

default ReduceExpressionsRule.Config

withOperandFor(Class<? extends RelNode> relClass)

Defines an operand tree for the given classes.

ReduceExpressionsRule.Config

withTreatDynamicCallsAsConstant(boolean treatDynamicCallsAsConstant)

Sets treatDynamicCallsAsConstant().

Methods inherited from interface org.apache.calcite.plan.RelRule.Config
as, description, operandSupplier, relBuilderFactory, withDescription, withOperandSupplier, withRelBuilderFactory

Method Details
- toRule
  
  ReduceExpressionsRule<?> toRule()
  
  Description copied from interface: RelRule.Config
  
  Creates a rule that uses this configuration. Sub-class must override.
  
  Specified by:
  
  toRule in interface RelRule.Config
- matchNullability
  
  @Default default boolean matchNullability()
  
  Whether to add a CAST when a nullable expression reduces to a NOT NULL literal.
- withMatchNullability
  
  ReduceExpressionsRule.Config withMatchNullability(boolean matchNullability)
  
  Sets matchNullability().
- treatDynamicCallsAsConstant
  
  @Default default boolean treatDynamicCallsAsConstant()
  
  Whether to treat dynamic functions as constants.
  When false (the default), calls to dynamic functions (e.g. USER) are not reduced. When true, calls to dynamic functions are treated as a constant, and reduced.
- withTreatDynamicCallsAsConstant
  
  ReduceExpressionsRule.Config withTreatDynamicCallsAsConstant(boolean treatDynamicCallsAsConstant)
  
  Sets treatDynamicCallsAsConstant().
- withOperandFor
  
  default ReduceExpressionsRule.Config withOperandFor(Class<? extends RelNode> relClass)
  
  Defines an operand tree for the given classes.