Package org.apache.calcite.adapter.jdbc
Class JdbcRules.JdbcUnion
- java.lang.Object
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- org.apache.calcite.rel.AbstractRelNode
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- org.apache.calcite.rel.core.SetOp
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- org.apache.calcite.rel.core.Union
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- org.apache.calcite.adapter.jdbc.JdbcRules.JdbcUnion
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Nested Class Summary
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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 JdbcUnion(RelOptCluster cluster, RelTraitSet traitSet, java.util.List<RelNode> inputs, boolean all)
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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.JdbcUnion
copy(RelTraitSet traitSet, java.util.List<RelNode> inputs, boolean all)
SqlImplementor.Result
implement(JdbcImplementor implementor)
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Methods inherited from class org.apache.calcite.rel.core.Union
estimateRowCount, estimateRowCount
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Methods inherited from class org.apache.calcite.rel.core.SetOp
copy, deriveRowType, explainTerms, getInputs, isHomogeneous, replaceInput
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Methods inherited from class org.apache.calcite.rel.AbstractRelNode
accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, explain, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraitSet, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, 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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JdbcUnion
public JdbcUnion(RelOptCluster cluster, RelTraitSet traitSet, java.util.List<RelNode> inputs, boolean all)
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Method Detail
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copy
public JdbcRules.JdbcUnion copy(RelTraitSet traitSet, java.util.List<RelNode> inputs, boolean all)
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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 classAbstractRelNode
- 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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