On May 5, 2012, at 1:04 AM, coldserenity wrote:

> Hello,
> 
>  I have tried to upgrade to 4.0 and receive following error in the logs
> 
> 2012-05-05 01:36:59,911
> [http://localhost/xwiki/bin/view/XWiki/WatchListRss?xpage=plain&outputSyntax=plain]
> ERROR c.x.x.s.m.liquibase         - Change Set
> liquibase.xml::R40000-000::sdumitriu failed.  Error: Error executing SQL
> ALTER TABLE `xwikifloats` DROP FOREIGN KEY `FKFB291FBF1DFF14A1`: Error on
> rename of './xwiki_utf8_innodb/xwikifloats' to
> './xwiki_utf8_innodb/#sql2-dfb-6f91' (errno: 152)
> liquibase.exception.DatabaseException: Error executing SQL ALTER TABLE
> `xwikifloats` DROP FOREIGN KEY `FKFB291FBF1DFF14A1`: Error on rename of
> './xwiki_utf8_innodb/xwikifloats' to './xwiki_utf8_innodb/#sql2-dfb-6f91'
> (errno: 152)
> 
>  Any ideas why this may happen?
>  Database is mysql 5.0.71.
> 
>  PS: Interesting why Sergiu got mentioned in the logs :)

Yep that's not nice. Guys could we modify this please? I think Sergiu proposed 
to use a generic name instead like "xwiki". Is it really not allowed to have 
this empty or not use it in liquibase?

Thanks
-Vincent

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