[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-1501) insert long string (more than 32700) fails on derby

[Steve Ebersole (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=36944#action_36944 ] 

Steve Ebersole commented on HHH-1501:
-------------------------------------

Hibernate does not take into account the length/scale/precision nor the dialect when determining the Hibernate Type to use for a property which omitted specifying one.  What it does is to basically choose a default based solely on the Java type.  Using that it performs a lookup via a call to TypeFactory.heuristicType.

What we'd need to do here is to inject a process that consults the dialect based on the sql-type (from the resolved Hibernate Type) and length and asks whether it should use an alternate Hibernate Type (aka, instead of StringType[String->VARCHAR] use MaterializeClobType[String->CLOB] because the length exceeded some limit for that dialect.

That I'd be OK with.  Problem is that the dialect is not known when we are doing this process :(  This is something I plan on addressing, but not until 3.7 or later.  See HHH-2578 for the details of that

> insert long string (more than 32700) fails on derby
> ---------------------------------------------------
>
>                 Key: HHH-1501
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1501
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.5.0-Beta-2
>         Environment: Derby 10
>            Reporter: Sergey Vladimirov
>            Priority: Trivial
>
> http://issues.apache.org/jira/browse/DERBY-102
> VARCHAR maximum length 32 672
> LONG VARCHAR maximum length 32 700
> CLOB maximum length 2 147 483 647
> BLOB maximum length 2 147 483 647
> this issue can be reproduced by org.hibernate.test.lob.TextTest (in 3.5 beta1,2) with change org.hibernate.test.lob.LongStringTest.LONG_STRING_SIZE > 32700

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