org.apache.calcite.adapter.pig

Interface PigRel

All Superinterfaces:

Cloneable, org.apache.calcite.rel.RelNode, org.apache.calcite.plan.RelOptNode

All Known Implementing Classes:

PigAggregate, PigFilter, PigJoin, PigProject, PigTableScan

public interface PigRel
extends org.apache.calcite.rel.RelNode

Relational expression that uses the Pig calling convention.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	PigRel.Implementor Callback for the implementation process that converts a tree of PigRel nodes into complete Pig Latin script.

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

org.apache.calcite.rel.RelNode.Context

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.calcite.plan.Convention	CONVENTION Calling convention for relational operations that occur in Pig.

Method Summary

Modifier and Type	Method and Description
void	implement(PigRel.Implementor implementor) Converts this node to a Pig Latin statement.

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, getTable, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

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

getCluster, getDescription, getId, getTraitSet

Field Detail

CONVENTION

static final org.apache.calcite.plan.Convention CONVENTION

Calling convention for relational operations that occur in Pig.

Method Detail

implement

void implement(PigRel.Implementor implementor)

Converts this node to a Pig Latin statement.