[JDEV] Yahoo Transport & xdb_sql

[Danilo Alves Ferreira (Engenharia - SPO)]

Is there a bug in the Yahoo Messenger Transport that does not allow sending
presence notifications to other users when the user is already online at the
time you log in??
Why messages sent through ICQ Transport sometimes do not get to the ICQ
user?

where can I find a good documentation about xdb_sql?

Thanks in advance