Package org.apache.flink.table.planner.plan.rules.physical.batch

Class BatchPhysicalConstantTableFunctionScanRule

java.lang.Object
org.apache.calcite.plan.RelOptRule
org.apache.calcite.plan.RelRule<BatchPhysicalConstantTableFunctionScanRule.BatchPhysicalConstantTableFunctionScanRuleConfig>
org.apache.flink.table.planner.plan.rules.physical.batch.BatchPhysicalConstantTableFunctionScanRule
@Enclosing public class BatchPhysicalConstantTableFunctionScanRule extends org.apache.calcite.plan.RelRule<BatchPhysicalConstantTableFunctionScanRule.BatchPhysicalConstantTableFunctionScanRuleConfig>
Converts FlinkLogicalTableFunctionScan with constant RexCall to 
                            BatchPhysicalCorrelate
                                   /               \
 empty BatchPhysicalValuesRule}     FlinkLogicalTableFunctionScan.

Add the rule to support select from a UDF directly, such as the following SQL: SELECT * FROM LATERAL TABLE(func()) as T(c)

Note: BatchPhysicalCorrelateRule is responsible for converting a reasonable physical plan for the normal correlate query, such as the following SQL: example1: SELECT * FROM T, LATERAL TABLE(func()) as T(c) example2: SELECT a, c FROM T, LATERAL TABLE(func(a)) as T(c)

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static interface 
    BatchPhysicalConstantTableFunctionScanRule.BatchPhysicalConstantTableFunctionScanRuleConfig
    Configuration for BatchPhysicalConstantTableFunctionScanRule.

    Nested classes/interfaces inherited from class org.apache.calcite.plan.RelRule

    org.apache.calcite.plan.RelRule.Config, 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
    Description
    static final BatchPhysicalConstantTableFunctionScanRule
    INSTANCE
     

    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
    Modifier
    Constructor
    Description
    protected
    BatchPhysicalConstantTableFunctionScanRule(BatchPhysicalConstantTableFunctionScanRule.BatchPhysicalConstantTableFunctionScanRuleConfig config)
     

  • 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.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