I have a problem with Hibernate Native Query. I have one SELECT that selects array slice (PostgreSQL database).
The problem is that hibernate recognizes the following part: ":300" from "SELECT my_array[1:300]..." as named parameter and I get the following exception: Not all named parameters have been set.
I tried to escape the colon (:) with ':' , '::' but with no success.
The Hibernate version is 3.2
I don't use PostgreSQL but if you don't find a proper solution for this problem you can implement an interceptor (extend EmptyInterceptor) and modify your query on onPrepareStatement(String sql)
.
Which means that you could be using something like my_array[1|300]
and rewriting it as my_array[1:300]
to workaround the named parameters problem.
Edit : I'm not 100% sure the above works (rewriting native SQL and whether the query parser would allow the special character). I've only done the above in HQL and criteria where I was passing the index hint as a query comment.
在Hibernate本身中,冒号无法逃脱(自2005年以来已知的Bug )。
MyInterceptor extends EmptyInterceptor
works as mentioned by cherouvim.
don't forget
<property name="hibernate.ejb.interceptor" value="MyInterceptor"/>
in persistence.xml
create function array_slice(a anyarray, start int4, end int4) returns anyarray as
$$
SELECT a[start:end];
$$
language(sql);
Now call this function instead. Did not try it but it will work somehow like this.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.