Package org.apache.calcite.adapter.pig
Class PigProject
java.lang.Object
org.apache.calcite.rel.AbstractRelNode
org.apache.calcite.rel.SingleRel
org.apache.calcite.rel.core.Project
org.apache.calcite.adapter.pig.PigProject
- All Implemented Interfaces:
Cloneable
,PigRel
,RelOptNode
,Hintable
,RelNode
Implementation of
Project
in
Pig calling convention
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.calcite.rel.core.Project
Project.Flags
Nested classes/interfaces inherited from interface org.apache.calcite.adapter.pig.PigRel
PigRel.Implementor
Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode
RelNode.Context
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Field Summary
Fields inherited from class org.apache.calcite.rel.core.Project
exps, hints, variablesSet
Fields inherited from class org.apache.calcite.rel.AbstractRelNode
digest, id, rowType, traitSet
Fields inherited from interface org.apache.calcite.adapter.pig.PigRel
CONVENTION
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Constructor Summary
ConstructorDescriptionPigProject
(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, List<? extends RexNode> projects, RelDataType rowType) Creates a PigProject. -
Method Summary
Modifier and TypeMethodDescriptioncopy
(RelTraitSet traitSet, RelNode input, List<RexNode> projects, RelDataType rowType) Copies a project.getTable()
Override this method so it looks down the tree to find the table this node is acting on.void
implement
(PigRel.Implementor implementor) Converts this node to a Pig Latin statement.Methods inherited from class org.apache.calcite.rel.core.Project
accept, computeSelfCost, containsOver, copy, copy, deepEquals0, deepHashCode0, explainTerms, getAliasedProjects, getFlags, getHints, getMapping, getMapping, getNamedProjects, getPartialMapping, getPermutation, getPermutation, getProjects, getVariablesSet, isBoxed, isMapping, isValid
Methods inherited from class org.apache.calcite.rel.SingleRel
childrenAccept, deriveRowType, estimateRowCount, getInput, getInputs, replaceInput
Methods inherited from class org.apache.calcite.rel.AbstractRelNode
accept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTraitSet, hashCode, isEnforcer, metadata, onRegister, recomputeDigest, register, sole, toString
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.apache.calcite.rel.hint.Hintable
attachHints, withHints
Methods inherited from interface org.apache.calcite.rel.RelNode
accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, deepEquals, deepHashCode, estimateRowCount, explain, explain, fieldIsNullable, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput, stripped
Methods inherited from interface org.apache.calcite.plan.RelOptNode
getCluster, getDescription, getId, getTraitSet
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Constructor Details
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PigProject
public PigProject(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, List<? extends RexNode> projects, RelDataType rowType) Creates a PigProject.
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Method Details
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copy
public Project copy(RelTraitSet traitSet, RelNode input, List<RexNode> projects, RelDataType rowType) Description copied from class:Project
Copies a project. -
implement
Description copied from interface:PigRel
Converts this node to a Pig Latin statement. -
getTable
Override this method so it looks down the tree to find the table this node is acting on.- Specified by:
getTable
in interfaceRelNode
- Overrides:
getTable
in classAbstractRelNode
- Returns:
- If this relational expression represents an access to a table, returns that table, otherwise returns null
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