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 Post subject: Automatic schema creation defaults timestamp precision to 0
PostPosted: Mon Jul 18, 2016 2:23 pm 
Newbie

Joined: Mon Jul 18, 2016 2:00 pm
Posts: 2
I'm using hibernate automatic schema generation on my project with hibernate 5.0.1, MySQL 5.6.27 and Java 1.8.45
Everything works perfectly well, except for datetime / timestamp fields with with milliseconds. My fields annotations look like this:
Code:
    @Column(name = "transition_timestamp", scale=3)
    @Type(type="timestamp")
    private Timestamp transitionTimestamp;


I've also tried to use length=3 and precision=3 in multiple combinations with scale=3 and nothing seems to work as I expect. The only way I can make this work, is by adding the non-portable:
Code:
    @Column(name = "transition_timestamp", columnDefinition="datetime(3)")
    private Timestamp transitionTimestamp;


Am I missing something or should I report this as a bug?
I've tried upgrading hibernate to v5.2.1, just in case, but I still get the same behaviour.


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 Post subject: Re: Automatic schema creation defaults timestamp precision to 0
PostPosted: Tue Jul 19, 2016 9:04 am 
Hibernate Team
Hibernate Team

Joined: Thu Sep 11, 2014 2:50 am
Posts: 1638
Location: Romania
You should try the MySQL57InnoDBDialect because it registers Timestamp like this:

Code:
registerColumnType( Types.TIMESTAMP, "datetime(6)" );

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 Post subject: Re: Automatic schema creation defaults timestamp precision to 0
PostPosted: Tue Jul 19, 2016 9:31 am 
Newbie

Joined: Mon Jul 18, 2016 2:00 pm
Posts: 2
mihalcea_vlad wrote:
You should try the MySQL57InnoDBDialect because it registers Timestamp like this:

Code:
registerColumnType( Types.TIMESTAMP, "datetime(6)" );

It worked like a charm, thanks!


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 Post subject: Re: Automatic schema creation defaults timestamp precision to 0
PostPosted: Tue Jul 19, 2016 9:55 am 
Hibernate Team
Hibernate Team

Joined: Thu Sep 11, 2014 2:50 am
Posts: 1638
Location: Romania
You're welcome.

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If you liked my answer, you are going to love my High-Performance Java Persistence book and my blog as well.


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