mysql数据库结构同步时出错 Duplicate key name 'case_id'

由于程序升级，利用Navicat工具同步两个MySQL数据库结构，源数据库为江湖家居V6.0至尊版，目标数据库为江湖家居V6.0标准版，运行时钩选“遇到错误继续”选项，同步过后，还有如下5条语句运行出错，如下图：



在右键，选择“全部校验”，在运行这5条语句分别显示如下错误：


[Msg] Executing - CREATE UNIQUE INDEX `case_id` USING BTREE ON `jh_case_like`(`case_id`, `clientip`, `uid`)
[Msg] Failed - Error on Index case_id of Table jh_case_like - 1061 - Duplicate key name 'case_id'
[Err] Synchronization Failed
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[Msg] Executing - CREATE INDEX `__INDEX` USING BTREE ON `jh_company_youhui_sign`(`company_id`, `youhui_id`, `uid`, `status`, `city_id`)
[Msg] Failed - Error on Index __INDEX of Table jh_company_youhui_sign - 1061 - Duplicate key name '__INDEX'
[Err] Synchronization Failed
--------------------------------------------------

[Msg] Executing - CREATE INDEX `orderby` USING BTREE ON `jh_mechanic`(`orderby`, `flushtime`)
[Msg] Failed - Error on Index orderby of Table jh_mechanic - 1061 - Duplicate key name 'orderby'
[Err] Synchronization Failed
--------------------------------------------------

[Msg] Executing - CREATE INDEX `orderby` USING BTREE ON `jh_shop`(`views`, `score`, `orderby`, `flushtime`)
[Msg] Failed - Error on Index orderby of Table jh_shop - 1061 - Duplicate key name 'orderby'
[Err] Synchronization Failed
--------------------------------------------------

[Msg] Executing - CREATE UNIQUE INDEX `tenders_id` USING BTREE ON `jh_tenders_look`(`tenders_id`, `uid`)
[Msg] Failed - Error on Index tenders_id of Table jh_tenders_look - 1061 - Duplicate key name 'tenders_id'
[Err] Synchronization Failed
--------------------------------------------------
解决方法：
分别打开目标数据库中的`jh_case_like` 、`jh_company_youhui_sign`、`jh_mechanic`、`jh_shop`、`jh_tenders_look`数据表，把数据表中索引栏位名，改为与源数据库中的栏位名一致即可，以下以`jh_tenders_look`数据表的栏位名为例，如图所示：