Package org.apache.calcite.adapter.jdbc
Class JdbcRules.JdbcProject
- java.lang.Object
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- org.apache.calcite.rel.AbstractRelNode
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- org.apache.calcite.rel.SingleRel
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- org.apache.calcite.rel.core.Project
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- org.apache.calcite.adapter.jdbc.JdbcRules.JdbcProject
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- All Implemented Interfaces:
java.lang.Cloneable
,JdbcRel
,RelOptNode
,RelNode
- Enclosing class:
- JdbcRules
public static class JdbcRules.JdbcProject extends Project implements JdbcRel
Implementation ofProject
injdbc calling convention
.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.calcite.rel.core.Project
Project.Flags
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Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode
RelNode.Context
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Constructor Summary
Constructors Constructor Description JdbcProject(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, java.util.List<? extends RexNode> projects, RelDataType rowType)
JdbcProject(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, java.util.List<RexNode> projects, RelDataType rowType, int flags)
Deprecated.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description RelOptCost
computeSelfCost(RelOptPlanner planner, RelMetadataQuery mq)
Returns the cost of this plan (not including children).JdbcRules.JdbcProject
copy(RelTraitSet traitSet, RelNode input, java.util.List<RexNode> projects, RelDataType rowType)
Copies a project.SqlImplementor.Result
implement(JdbcImplementor implementor)
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Methods inherited from class org.apache.calcite.rel.core.Project
accept, copy, copy, explainTerms, getChildExps, getFlags, getMapping, getMapping, getNamedProjects, getPartialMapping, getPermutation, getPermutation, getProjects, isBoxed, isMapping, isValid
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Methods inherited from class org.apache.calcite.rel.SingleRel
childrenAccept, deriveRowType, estimateRowCount, getInput, getInputs, replaceInput
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Methods inherited from class org.apache.calcite.rel.AbstractRelNode
accept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, explain, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraitSet, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, metadata, onRegister, recomputeDigest, register, sole, toString
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.apache.calcite.rel.RelNode
accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, estimateRowCount, explain, getChildExps, getCollationList, getConvention, getCorrelVariable, getExpectedInputRowType, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, isValid, metadata, onRegister, recomputeDigest, register, replaceInput
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Methods inherited from interface org.apache.calcite.plan.RelOptNode
getCluster, getDescription, getDigest, getId, getTraitSet
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Constructor Detail
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JdbcProject
public JdbcProject(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, java.util.List<? extends RexNode> projects, RelDataType rowType)
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JdbcProject
@Deprecated public JdbcProject(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, java.util.List<RexNode> projects, RelDataType rowType, int flags)
Deprecated.
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Method Detail
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copy
public JdbcRules.JdbcProject copy(RelTraitSet traitSet, RelNode input, java.util.List<RexNode> projects, RelDataType rowType)
Description copied from class:Project
Copies a project.- Specified by:
copy
in classProject
- Parameters:
traitSet
- Traitsinput
- Inputprojects
- Project expressionsrowType
- Output row type- Returns:
- New
Project
if any parameter differs from the value of thisProject
, or justthis
if all the parameters are the same - See Also:
Project.copy(RelTraitSet, List)
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computeSelfCost
public RelOptCost computeSelfCost(RelOptPlanner planner, RelMetadataQuery mq)
Description copied from interface:RelNode
Returns the cost of this plan (not including children). The base implementation throws an error; derived classes should override.NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use
RelMetadataQuery.getNonCumulativeCost(org.apache.calcite.rel.RelNode)
, which gives plugins a chance to override the rel's default ideas about cost.- Specified by:
computeSelfCost
in interfaceRelNode
- Overrides:
computeSelfCost
in classProject
- Parameters:
planner
- Planner for cost calculationmq
- Metadata query- Returns:
- Cost of this plan (not including children)
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implement
public SqlImplementor.Result implement(JdbcImplementor implementor)
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