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

Class PushWatermarkIntoTableSourceScanAcrossCalcRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

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

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

public class PushWatermarkIntoTableSourceScanAcrossCalcRule
extends PushWatermarkIntoTableSourceScanRuleBase

Rule to push the FlinkLogicalWatermarkAssigner across the FlinkLogicalCalc to the FlinkLogicalTableSourceScan. The rule will first look for the computed column in the FlinkLogicalCalc and then translate the watermark expression and the computed column into a WatermarkStrategy. With the new scan the rule will build a new FlinkLogicalCalc.

Nested Class Summary

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 PushWatermarkIntoTableSourceScanAcrossCalcRule	INSTANCE

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

description, operands, relBuilderFactory

Constructor Summary

Constructors

Constructor and Description
PushWatermarkIntoTableSourceScanAcrossCalcRule()

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.flink.table.planner.plan.rules.logical.PushWatermarkIntoTableSourceScanRuleBase

getNewScan, supportsWatermarkPushDown

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

INSTANCE

public static final PushWatermarkIntoTableSourceScanAcrossCalcRule INSTANCE

Constructor Detail

PushWatermarkIntoTableSourceScanAcrossCalcRule

public PushWatermarkIntoTableSourceScanAcrossCalcRule()

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