Using HSQLDB for production

[Bert Randolf]

Hi,
 
we think about running ManifoldCF on a Filesystem Database to ease installation 
and reduce infrastructure costs.
Since derby is not recommended for production use the only option left would be 
HSQLDB.
 
Is it recommended to run ManifoldCF on HSQLDB in a production environment?
Are there any known limitations compared to postgres or mysql (besides 
performance)?
 
Thanks in advance,
Bert