Package org.apache.calcite.adapter.enumerable

Class EnumerableTableFunctionScanRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

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

org.apache.calcite.rel.convert.ConverterRule

org.apache.calcite.adapter.enumerable.EnumerableTableFunctionScanRule

public class EnumerableTableFunctionScanRule
extends ConverterRule

Rule to convert a LogicalTableFunctionScan to an EnumerableTableFunctionScan. You may provide a custom config to convert other nodes that extend TableFunctionScan.

See Also:

• EnumerableRules.ENUMERABLE_TABLE_FUNCTION_SCAN_RULE

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.rel.convert.ConverterRule

ConverterRule.Config

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

RelRule.Done, RelRule.MatchHandler<R extends RelOptRule>, RelRule.OperandBuilder, RelRule.OperandDetailBuilder<R extends RelNode>, RelRule.OperandTransform

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

RelOptRule.ConverterRelOptRuleOperand

Field Summary

Fields

Modifier and Type	Field	Description
static final ConverterRule.Config	DEFAULT_CONFIG	Default configuration.

Fields inherited from class org.apache.calcite.rel.convert.ConverterRule

out

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	EnumerableTableFunctionScanRule(ConverterRule.Config config)	Creates an EnumerableTableFunctionScanRule.

Method Summary

Modifier and Type	Method	Description
RelNode	convert(RelNode rel)	Converts a relational expression to the target trait(s) of this rule.

Methods inherited from class org.apache.calcite.rel.convert.ConverterRule

getInTrait, getOutConvention, getOutTrait, getTraitDef, isGuaranteed, onMatch

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

any, convert, convert, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, hashCode, matches, 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

DEFAULT_CONFIG

public static final ConverterRule.Config DEFAULT_CONFIG

Default configuration.

Constructor Details

EnumerableTableFunctionScanRule

protected EnumerableTableFunctionScanRule(ConverterRule.Config config)

Creates an EnumerableTableFunctionScanRule.

Method Details

convert

public RelNode convert(RelNode rel)

Description copied from class: ConverterRule

Converts a relational expression to the target trait(s) of this rule.

Returns null if conversion is not possible.

Specified by:

convert in class ConverterRule