org.apache.calcite.plan

Class CommonRelSubExprRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.CommonRelSubExprRule

public abstract class CommonRelSubExprRule
extends RelOptRule

A CommonRelSubExprRule is an abstract base class for rules that are fired only on relational expressions that appear more than once in a query tree.

Field Summary

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

description, operands

Constructor Summary

Constructors

Constructor and Description
CommonRelSubExprRule(RelOptRuleOperand operand) Creates a CommonRelSubExprRule.

Method Summary

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

CommonRelSubExprRule

public CommonRelSubExprRule(RelOptRuleOperand operand)

Creates a CommonRelSubExprRule.

Parameters:

operand - root operand, must not be null