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

类 FlinkJoinPushExpressionsRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

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

public class FlinkJoinPushExpressionsRule
extends org.apache.calcite.plan.RelOptRule

Planner rule that pushes down expressions in "equal" join condition.

For example, given "emp JOIN dept ON emp.deptno + 1 = dept.deptno", adds a project above "emp" that computes the expression "emp.deptno + 1". The resulting join condition is a simple combination of AND, equals, and input fields, plus the remaining non-equal conditions.

嵌套类概要

从类继承的嵌套类/接口 org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

字段概要

字段

限定符和类型	字段和说明
static FlinkJoinPushExpressionsRule	INSTANCE

从类继承的字段 org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

构造器概要

构造器

构造器和说明
FlinkJoinPushExpressionsRule(Class<? extends org.apache.calcite.rel.core.Join> clazz, org.apache.calcite.tools.RelBuilderFactory relBuilderFactory) Creates a JoinPushExpressionsRule.
FlinkJoinPushExpressionsRule(Class<? extends org.apache.calcite.rel.core.Join> clazz, org.apache.calcite.rel.core.RelFactories.ProjectFactory projectFactory) 已过时。

方法概要

限定符和类型	方法和说明
void	onMatch(org.apache.calcite.plan.RelOptRuleCall call)

从类继承的方法 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

从类继承的方法 java.lang.Object

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

字段详细资料

INSTANCE

public static final FlinkJoinPushExpressionsRule INSTANCE

构造器详细资料

FlinkJoinPushExpressionsRule

public FlinkJoinPushExpressionsRule(Class<? extends org.apache.calcite.rel.core.Join> clazz,
                                    org.apache.calcite.tools.RelBuilderFactory relBuilderFactory)

Creates a JoinPushExpressionsRule.

FlinkJoinPushExpressionsRule

@Deprecated
public FlinkJoinPushExpressionsRule(Class<? extends org.apache.calcite.rel.core.Join> clazz,
                                                org.apache.calcite.rel.core.RelFactories.ProjectFactory projectFactory)

已过时。

方法详细资料

onMatch

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

指定者:

onMatch 在类中 org.apache.calcite.plan.RelOptRule