/*
 * Copyright 2016-2018 shardingsphere.io.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * </p>
 */

package io.shardingsphere.core.parsing.antlr.sql.ddl;

import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lombok.Setter;
import lombok.ToString;

/**
 * Column definition.
 * 
 * @author duhongjun
 */
@Getter
@Setter
@ToString
public final class ColumnDefinition {
    
    private final String name;
    
    private final String type;
    
    private final Integer length;
    
    private boolean primaryKey;
    
    private ColumnPosition position;
    
    public ColumnDefinition(final String name, final String type, final Integer length, boolean primaryKey) {
        this.name = name;
        this.type = type;
        this.length = length;
        this.primaryKey = primaryKey;
    }
}

@@ -694,47 +694,8 @@
 er;%0A
-import lombok.RequiredArgsConstructor;%0A
 impo
@@ -869,30 +869,24 @@
     private 
-final 
 String name;
@@ -903,22 +903,16 @@
 private 
-final 
 String t
@@ -933,22 +933,16 @@
 private 
-final 
 Integer 
@@ -1029,24 +1029,57 @@
 ition;%0A    %0A
+    private String oldName;%0A    %0A
     public C

update ColumnDefinition