I've found 100 chars to be sufficient to hold the upgrade script's filename. However, yes, extending that wouldn't hurt probably, maybe varchar(400) or is more suitable and works on both Oracle and PG.
I actually haven't seen acs_log to be used much, so the impact should be small.
db_exec_plsql
No problems with that if you think it's more correct. We used to use the function, too, but there is actually no big difference in practical terms, isn't it?
Cheers,
Frank
