org.apache.calcite.adapter.jdbc

Class JdbcRules.JdbcSort

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Sort

org.apache.calcite.adapter.jdbc.JdbcRules.JdbcSort

All Implemented Interfaces:

Cloneable, JdbcRel, RelOptNode, RelNode

Enclosing class:

JdbcRules

public static class JdbcRules.JdbcSort
extends Sort
implements JdbcRel

Sort operator implemented in JDBC convention.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode

RelNode.Context

Field Summary

Fields inherited from class org.apache.calcite.rel.core.Sort

collation, fetch, offset

Fields inherited from class org.apache.calcite.rel.SingleRel

input

Fields inherited from class org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
JdbcSort(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, RelCollation collation, RexNode offset, RexNode fetch)

Method Summary

Modifier and Type	Method and Description
RelOptCost	computeSelfCost(RelOptPlanner planner, RelMetadataQuery mq) Returns the cost of this plan (not including children).
JdbcRules.JdbcSort	copy(RelTraitSet traitSet, RelNode newInput, RelCollation newCollation, RexNode offset, RexNode fetch)
SqlImplementor.Result	implement(JdbcImplementor implementor)

Methods inherited from class org.apache.calcite.rel.core.Sort

accept, copy, copy, explainTerms, getCollation, getSortExps, isEnforcer

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, getTable, getTraitSet, getVariablesSet, hashCode, isValid, 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.RelNode

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, copy, deepEquals, deepHashCode, estimateRowCount, explain, explain, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getTable, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

Methods inherited from interface org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getId, getTraitSet

Constructor Detail

JdbcSort

public JdbcSort(RelOptCluster cluster,
                RelTraitSet traitSet,
                RelNode input,
                RelCollation collation,
                RexNode offset,
                RexNode fetch)

Method Detail

copy

public JdbcRules.JdbcSort copy(RelTraitSet traitSet,
                               RelNode newInput,
                               RelCollation newCollation,
                               RexNode offset,
                               RexNode fetch)

Specified by:

copy in class Sort

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 interface RelNode

Overrides:

computeSelfCost in class Sort

Parameters:

planner - Planner for cost calculation

mq - Metadata query

Returns:

Cost of this plan (not including children)

implement

public SqlImplementor.Result implement(JdbcImplementor implementor)

Specified by:

implement in interface JdbcRel