org.apache.shardingsphere.sqlfederation.optimizer

Class SQLOptimizeEngine

java.lang.Object

org.apache.shardingsphere.sqlfederation.optimizer.SQLOptimizeEngine

public final class SQLOptimizeEngine
extends Object

SQL optimize engine.

Constructor Summary

Constructors

Constructor and Description
SQLOptimizeEngine()

Method Summary

Modifier and Type	Method and Description
SQLOptimizeContext	optimize(org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement sqlStatement) Optimize query execution plan.

Methods inherited from class java.lang.Object

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

Constructor Detail

SQLOptimizeEngine

public SQLOptimizeEngine()

Method Detail

optimize

public SQLOptimizeContext optimize(org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement sqlStatement)

Optimize query execution plan.

Parameters:

sqlStatement - SQL statement

Returns:

optimized relational node