首页 / MYSQL / MySQL5.6新特性测试

MySQL5.6新特性测试

内容导读

互联网集市收集整理的这篇技术教程文章主要介绍了MySQL5.6新特性测试，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含3352字，纯文字阅读大概需要5分钟。

内容图文

在微博上看到隔壁部门的同事发布了一个介绍MySQL 5.6新特性的slide。遂对其中几个对我们业务有用的特性做了测试。 Found a slide which introducing new features in MySQL 5.6, which is made by a colleague in other department. For our business, I ran

在微博上看到隔壁部门的同事发布了一个介绍MySQL 5.6新特性的slide。遂对其中几个对我们业务有用的特性做了测试。

Found a slide which introducing new features in MySQL 5.6, which is made by a colleague in other department. For our business, I ran some tests on some features.

  • InnoDB Compression
//压缩前(before compress)
Name: workticket
Engine: InnoDB
Version: 10
Row_format: Compact
Rows: 1471830
Avg_row_length: 328
Data_length: 483295232
Max_data_length: 0
Index_length: 260276224
Data_free: 5242880
Auto_increment: 3473533
Create_time: 2013-04-15 16:01:01
Update_time: NULL
Check_time: NULL
Collation: utf8_general_ci
Checksum: NULL
Create_options: 
Comment: 工单表
//压缩后(after compress)
Name: workticket
Engine: InnoDB
Version: 10
Row_format: Compressed
Rows: 1553544
Avg_row_length: 143
Data_length: 222281728
Max_data_length: 0
Index_length: 121192448
Data_free: 2621440
Auto_increment: 3473533
Create_time: 2013-04-15 16:06:33
Update_time: NULL
Check_time: NULL
Collation: utf8_general_ci
Checksum: NULL
Create_options: row_format=COMPRESSED
Comment: 工单表

但还是不够myisampack后的myisam省空间

But InnoDB Compression is less storage efficient than MyISAM after myisampack.

-rw-rw---- 1 mysql mysql 9.5K Apr 16 09:35 workticket.frm
-rw-rw---- 1 mysql mysql 9.5K Apr 16 09:45 workticket_innodb.frm
-rw-rw---- 1 mysql mysql 336M Apr 16 09:58 workticket_innodb.ibd
-rw-rw---- 1 mysql mysql 199M Apr 16 09:41 workticket.MYD
-rw-rw---- 1 mysql mysql  86M Apr 16 09:44 workticket.MYI
           Name: workticket
         Engine: MyISAM
        Version: 10
     Row_format: Dynamic
           Rows: 1593851
 Avg_row_length: 201
    Data_length: 321325744
Max_data_length: 281474976710655
   Index_length: 130242560
      Data_free: 0
 Auto_increment: 3473533
    Create_time: 2013-04-16 09:35:53
    Update_time: 2013-04-16 09:41:09
     Check_time: 2013-04-16 09:37:03
      Collation: utf8_general_ci
       Checksum: NULL
 Create_options: 
        Comment: 工单表
  • InnoDB Online DDL
mysql> ALTER TABLE `workticket` ADD COLUMN `test_col` INT NOT NULL AFTER sid, LOCK=NONE;
Query OK, 0 rows affected (5 min 25.17 sec)
Records: 0  Duplicates: 0  Warnings: 0
mysql> set old_alter_table=1;
Query OK, 0 rows affected (0.00 sec)
mysql> ALTER TABLE `workticket` ADD COLUMN `test_col` INT NOT NULL AFTER sid, LOCK=NONE; 
ERROR 1846 (0A000): LOCK=NONE is not supported. Reason: COPY algorithm requires a lock. Try LOCK=SHARED.
mysql> ALTER TABLE `workticket` ADD COLUMN `test_col` INT NOT NULL AFTER sid, LOCK=SHARED;
Query OK, 1593851 rows affected (4 min 11.89 sec)
Records: 1593851  Duplicates: 0  Warnings: 0

虽然总体耗时更长，但DDL过程中不锁表（可query and/or 可DML）还是很吸引的（详细的DDL操作是否可query and/or 可DML可参见文档）。

Although costing more time, that the table can be query and/or execute DML query is very amazing. (Detail can be seen in documentation)

  • InnoDB-Transportable Tablespaces
    没什么可测试的，就是操作成功。用途？建slave？备份？
    Nothing interesting to test. It just works. What can I do with this feature? Maybe building up a slave server? Or backup up the database?

原文地址：MySQL 5.6新特性测试, 感谢原作者分享。

内容总结

以上是互联网集市为您收集整理的MySQL5.6新特性测试全部内容，希望文章能够帮你解决MySQL5.6新特性测试所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。

内容备注

版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。

内容手机端

扫描二维码推送至手机访问。

本文链接：https://qyyshop.com/info/555912.html

来源：【匿名】