org.apache.hadoop.hive.ql.parse

Class CBOPlan

java.lang.Object

org.apache.hadoop.hive.ql.parse.CBOPlan

public class CBOPlan
extends Object

Wrapper of Calcite plan.

Constructor Summary

Constructors

Constructor and Description
CBOPlan(ASTNode ast, org.apache.calcite.rel.RelNode plan, Set<RewriteAlgorithm> supportedRewriteAlgorithms)

Method Summary

Modifier and Type	Method and Description
ASTNode	getAst()
org.apache.calcite.rel.RelNode	getPlan() Root node of plan.
Set<RewriteAlgorithm>	getSupportedRewriteAlgorithms() Returns an error message if this plan can not be a definition of a Materialized view which is an input of Calcite based materialized view query rewrite.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CBOPlan

public CBOPlan(ASTNode ast,
               org.apache.calcite.rel.RelNode plan,
               Set<RewriteAlgorithm> supportedRewriteAlgorithms)

Method Detail

getAst

public ASTNode getAst()

getPlan

public org.apache.calcite.rel.RelNode getPlan()

Root node of plan.

Returns:

Root RelNode

getSupportedRewriteAlgorithms

public Set<RewriteAlgorithm> getSupportedRewriteAlgorithms()

Returns an error message if this plan can not be a definition of a Materialized view which is an input of Calcite based materialized view query rewrite. Null or empty string otherwise.

Returns:

String contains error message or null.