Hibernate version:
2.1.6

DB
Oracle 9i

I've insert many date using "save" methdod in Hibernate and it is done as prepared statement in Oracle. But I've notice that there are many

select hibernate_sequence.nextval from dual

in Oracle trace.

I've changed my "id" column in mapping to "assigned" :


<id
name="id"
column="EXCHANGE_RATE_ID"
type="long"
unsaved-value="0"
>
<generator class="assigned">
</generator>
</id>

and id is genereated by program because we use standalone application such solution is safe. But in Oracle trace I see that Hibernate still produce many (as many as batch size is):

select hibernate_sequence.nextval from dual

before inserting to my table. How to stop these id generation selects!?
It should not be generated for this table.

I would like to add that in our example inserts takes shorter then generation of the id !!