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

Class EventTimeTemporalJoinRewriteRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

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

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

@Value.Enclosing
public class EventTimeTemporalJoinRewriteRule
extends org.apache.calcite.plan.RelRule<EventTimeTemporalJoinRewriteRule.Config>

Traverses an event time temporal table join RelNode tree and update the right child to set FlinkLogicalTableSourceScan's eventTimeSnapshot property to true which will prevent it generating a new StreamPhysicalChangelogNormalize later.

the match patterns are as following(8 variants, the three `Calc` nodes are all optional):

    Join (event time temporal)
      /       \
 RelNode     [Calc]
               \
             Snapshot
                \
              [Calc]
                 \
             WatermarkAssigner
                  \
                [Calc]
                   \
                TableScan
 

Note: This rule can only be used in a separate HepProgram after `LOGICAL_REWRITE` rule sets are applied for now.

Nested Class Summary

Nested Classes

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

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 and Description
static org.apache.calcite.tools.RuleSet	EVENT_TIME_TEMPORAL_JOIN_REWRITE_RULES

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 and Description
EventTimeTemporalJoinRewriteRule(EventTimeTemporalJoinRewriteRule.Config config)

Method Summary

Modifier and Type	Method and Description
boolean	matches(org.apache.calcite.plan.RelOptRuleCall call)
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, 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 Detail

EVENT_TIME_TEMPORAL_JOIN_REWRITE_RULES

public static final org.apache.calcite.tools.RuleSet EVENT_TIME_TEMPORAL_JOIN_REWRITE_RULES

Constructor Detail

EventTimeTemporalJoinRewriteRule

public EventTimeTemporalJoinRewriteRule(EventTimeTemporalJoinRewriteRule.Config config)

Method Detail

matches

public boolean matches(org.apache.calcite.plan.RelOptRuleCall call)

Overrides:

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

onMatch

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

Specified by:

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