Manfred,
 
We are 
aware of the Blog post.  We have attempted to answer the Blog in January, 
but the author has not put our post up yet.
 
The 
short answer is that EclipseLink supports all the major databases, and we 
regularly run 1000s of tests to ensure that we don't regress.  The 
EclipseLink tests that run every night on the Eclipse build machine do so on 
MySQL.  Oracle QA also runs the same tests nightly on several different 
databases (and database versions).  
 
The 
difficulty in supporting all databases is that different databases (and even 
different versions of the same database) support different features in different 
ways.
 
The 
issue mentioned in this Blog is bug:  https://bugs.eclipse.org/bugs/show_bug.cgi?id=301252.  
It is an issue of DDL generation, which will show up during development, but not 
likely in production.  This is because the DB admin will likely not be 
using EclipseLink to create the production tables.  There is a valid work 
around in the bug.  This bug is currently targeted to be looked at for our 
next maintenance release. (2.0.2) 
 
In 
general, if you are experiencing a blocking issue that is occurring on any 
Database, please be sure to file a bug.
 
Peter
-----Original Message-----
From: Manfred 
Schenk [mailto:Manfred.Schenk@xxxxxxxxxxxxxxxxxx]
Sent: Wednesday, 
March 10, 2010 8:56 AM
To: 
eclipselink-users@xxxxxxxxxxx
Subject: [eclipselink-users] 
eclipselink, blobs and mysql? Any comments on the referenced blog 
entry?
Hi,
while browsing the web 
  for tutorials and information about the use of the @lob annotation with 
  eclipselink and mysql I stumbled upon the following blog post: http://datenschwanz.net/2010/01/22/eclipselink-hates-mysql-probably/
Do 
  you have any comments on the topics/problems mentioned 
  there?
Regards,
Manfred
  -- 
  Manfred Schenk, Fraunhofer IOSB
Abteilung LTS
Fraunhoferstraße 
  1,76131 Karlsruhe, Germany
Telefon +49 721 6091-391
mailto:Manfred.Schenk@xxxxxxxxxxxxxxxxxx
http://www.iosb.fraunhofer.de
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