表创建失败

Question

我正在使用H2数据库来测试我的Grails应用程序.我有一些简单的域类,如:

package mypackage

class UserSession {
    User user
    String sessionTokenHash

    // last seen info
    String lastSeenIP
    Date lastSeenTime
    String lastSeenUserAgent
    String lastSeenURL
}

但是,表似乎没有正确创建.

hbm2ddl.SchemaExport Unsuccessful: create table user_session (id bigint not null auto_increment, version bigint not null, last_seenip varchar(255) not null, last_seen_time datetime not null, last_seenurl varchar(255) not null, last_seen_user_agent varchar(255) not null, session_token_hash varchar(255) not null, user_id bigint not null, primary key (id)) ENGINE=InnoDB
hbm2ddl.SchemaExport Syntax error in SQL statement "CREATE TABLE USER_SESSION (ID BIGINT NOT NULL AUTO_INCREMENT, VERSION BIGINT NOT NULL, LAST_SEENIP VARCHAR(255) NOT NULL, LAST_SEEN_TIME DATETIME NOT NULL, LAST_SEENURL VARCHAR(255) NOT NULL, LAST_SEEN_USER_AGENT VARCHAR(255) NOT NULL, SESSION_TOKEN_HASH VARCHAR(255) NOT NULL, USER_ID BIGINT NOT NULL, PRIMARY KEY (ID)) ENGINE=[*]INNODB "; expected "identifier"; SQL statement:
create table user_session (id bigint not null auto_increment, version bigint not null, last_seenip varchar(255) not null, last_seen_time datetime not null, last_seenurl varchar(255) not null, last_seen_user_agent varchar(255) not null, session_token_hash varchar(255) not null, user_id bigint not null, primary key (id)) ENGINE=InnoDB [42001-147]

它设置为在create-drop模式下使用临时内存H2数据库.

Answer 1

我用错了方言; 我的DataSource.groovy在dataSource块中设置了以下方言:

dialect = "org.hibernate.dialect.MySQL5InnoDBDialect"

我为开发数据源添加了以下行:

dialect = "org.hibernate.dialect.H2Dialect"

这解决了这个问题.