Package 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
    Description
    static final PushWatermarkIntoTableSourceScanAcrossCalcRule
    INSTANCE
     

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

    description, operands, relBuilderFactory

  • Constructor Summary

    Constructors
    Constructor
    Description
    PushWatermarkIntoTableSourceScanAcrossCalcRule()
     

  • Method Summary

    Modifier and Type
    Method
    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 Details

  • Constructor Details

    • PushWatermarkIntoTableSourceScanAcrossCalcRule

      public PushWatermarkIntoTableSourceScanAcrossCalcRule()

  • Method Details

    • 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