Question

我正在尝试将数据库从mysql移植到infinidb.But我在移植时遇到上述错误（在标题中描述）。

`CREATE_TIMESTAMP` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

在mysql中有效，但在infinidb中无效。错误是：错误代码：138。 infinidb不支持语法或数据类型。任何帮助将不胜感激。

Answer 1

这是您正在尝试的完整SQL语句吗？我能够使用：

create table test (`CREATE_TIMESTAMP` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP);

这是控制台输出

[root@centos6 bin]# idbmysql 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 5.1.73 Calpont InfiniDB 4.5 Alpha

Copyright (c) 2014, InfiniDB, Inc. and/or its affiliates. All rights reserved.
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

InfiniDB is a registered trademark of InfiniDB, Inc. and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> use test;
Database changed
mysql> create table test (`CREATE_TIMESTAMP` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP);
Query OK, 0 rows affected (0.00 sec)

mysql> describe test;
+------------------+-----------+------+-----+-------------------+-----------------------------+
| Field            | Type      | Null | Key | Default           | Extra                       |
+------------------+-----------+------+-----+-------------------+-----------------------------+
| CREATE_TIMESTAMP | timestamp | NO   |     | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
+------------------+-----------+------+-----+-------------------+-----------------------------+
1 row in set (0.00 sec)

mysql>

如果这不起作用或者您以不同的方式尝试语法，请告诉我。你还在试用什么版本的InfiniDB？

谢谢！

Answer 2

您似乎无法在InfiniDB中使用timepstamp数据类型。我有与@mhoglan相同的版本，但似乎该查询中有一点错误：

mysql> create table test (`CREATE_TIMESTAMP` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP);
Query OK, 0 rows affected (0.00 sec)

最后缺少＆＃34; engine = infinidb;＆＃34; ，这将在infinidb中创建表格。相反，该表是使用MySQL的默认引擎（MyISAM或其中任何一个）创建的。

mysql> create table test (`CREATE_TIMESTAMP` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP) engine=infinidb;
ERROR 138 (HY000): The syntax or the data type(s) is not supported by InfiniDB. Please check the InfiniDB syntax guide for supported syntax or data types.

如您所见，添加engine = infinidb失败。

如果您可以使用日期时间，那么可能就是这样;时间戳目前似乎不受支持：（

Answer 3

我猜这是InfiniDB中不允许的NOT NULL约束。

Infinidb-“`CREATE_TIMESTAMP` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP”给出错误

3 个答案: