Package org.apache.flink.table.planner.plan.rules.logical

Class RemoveUnreachableCoalesceArgumentsRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config>

org.apache.flink.table.planner.plan.rules.logical.RemoveUnreachableCoalesceArgumentsRule

@Internal
@Enclosing
public class RemoveUnreachableCoalesceArgumentsRule
extends org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config>

Removes unreachable BuiltInFunctionDefinitions.COALESCE arguments.

An unreachable COALESCE argument is defined as any argument after the first argument in the argument list with a non-null type.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	RemoveUnreachableCoalesceArgumentsRule.Config	Configuration for RemoveUnreachableCoalesceArgumentsRule.

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelRule

org.apache.calcite.plan.RelRule.Done, org.apache.calcite.plan.RelRule.MatchHandler<R extends org.apache.calcite.plan.RelOptRule>, org.apache.calcite.plan.RelRule.OperandBuilder, org.apache.calcite.plan.RelRule.OperandDetailBuilder<R extends org.apache.calcite.rel.RelNode>, org.apache.calcite.plan.RelRule.OperandTransform

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

Field Summary

Fields

Modifier and Type	Field	Description
static final org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config>	CALC_INSTANCE
static final org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config>	FILTER_INSTANCE
static final org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config>	JOIN_INSTANCE
static final org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config>	PROJECT_INSTANCE

Fields inherited from class org.apache.calcite.plan.RelRule

config

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Constructor Summary

Constructors

Constructor	Description
RemoveUnreachableCoalesceArgumentsRule(RemoveUnreachableCoalesceArgumentsRule.Config config)

Method Summary

Modifier and Type	Method	Description
void	onMatch(org.apache.calcite.plan.RelOptRuleCall call)

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

PROJECT_INSTANCE

public static final org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config> PROJECT_INSTANCE

FILTER_INSTANCE

public static final org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config> FILTER_INSTANCE

JOIN_INSTANCE

public static final org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config> JOIN_INSTANCE

CALC_INSTANCE

public static final org.apache.calcite.plan.RelRule<RemoveUnreachableCoalesceArgumentsRule.Config> CALC_INSTANCE

Constructor Details

RemoveUnreachableCoalesceArgumentsRule

public RemoveUnreachableCoalesceArgumentsRule(RemoveUnreachableCoalesceArgumentsRule.Config config)

Method Details

onMatch

public void onMatch(org.apache.calcite.plan.RelOptRuleCall call)

Specified by:

onMatch in class org.apache.calcite.plan.RelOptRule