[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-1501) Derby 10 varchar limit is 32672

Jeff Schnitzer (JIRA) noreply at atlassian.com
Sun Sep 10 03:48:24 EDT 2006


    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1501?page=comments#action_24395 ] 

Jeff Schnitzer commented on HHH-1501:
-------------------------------------

A related issue is that if you have something like this:

	@Column(length=SOMELENGTH)
	byte[] stuff;

Then the DerbyDialect tries to create a "VARCHAR(SOMELENGTH) FOR BIT DATA" column, and SOMELENGTH cannot be particularly large of you get errors.

> Derby 10 varchar limit  is 32672
> --------------------------------
>
>          Key: HHH-1501
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1501
>      Project: Hibernate3
>         Type: Bug

>   Components: core
>     Versions: 3.1.2
>  Environment: Derby 10
>     Reporter: Sergey Vladimirov
>     Priority: Trivial

>
>
> Derby 10 varchar limit  is 32672.
> One need to change DB2Dialect and DerbyDialect to create clob columns, if size of text > 32k:
>         registerColumnType(Types.CHAR, 254, "char(1)");
>         registerColumnType(Types.VARCHAR, 32672, "varchar($l)");
>         registerColumnType(Types.VARCHAR, Integer.MAX_VALUE, "clob($l)");
> (BTW, char limit is 254).

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