Hello Joy,

You will need to contact your software vendor to resolve this issue.

Goldmine is a third party application, one that is not developed or
maintained by the Firebird project. From your information, it would
appear it does use Firebird as its underlying database. In terms of
error messages raised by that application, only they can tell you what
the implications are of this problem.

Looking at the error message:
"Database operation error: size of optimizer block exceeded".

The specific string "size of optimizer block exceeded" does appear in
firebird.msg (on 1.5 anyway), so was most likely raised by the
database engine. It appears that your software received the above
exception from the database, prepended the string "Database operation
error: ", then popped up the message.

Your software vendor will need to identify what they are doing at the
time, and possibly change the query to avoid it. Unfortunately as an
end user, you will not be in the position to provide the level of
detail about the queries run etc that would be needed to solve this
problem.

Adam