org.apache.shardingsphere.infra.optimize

类 ShardingSphereOptimizer

java.lang.Object

org.apache.shardingsphere.infra.optimize.ShardingSphereOptimizer

public final class ShardingSphereOptimizer
extends Object

ShardingSphere optimizer.

构造器概要

构造器

构造器和说明
ShardingSphereOptimizer()

方法概要

限定符和类型	方法和说明
org.apache.calcite.rel.RelNode	optimize(String schemaName, org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement sqlStatement) Optimize query execution plan.

从类继承的方法 java.lang.Object

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

构造器详细资料

ShardingSphereOptimizer

public ShardingSphereOptimizer()

方法详细资料

optimize

public org.apache.calcite.rel.RelNode optimize(String schemaName,
                                               org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement sqlStatement)

Optimize query execution plan.

参数:

schemaName - schema name

sqlStatement - SQL statement to be optimized

返回:

optimized relational node