Error with a hibernate query
Vernon
The Java code:
public class User {
private Long id;
private String username;
private String password;
//...
}
The DB table:
create table USERS (
id SERIAL UNIQUE primary key,
username VARCHAR(80) NOT NULL,
password VARCHAR(80) NOT NULL,
...
);
The Hibernate query:
getHibernateTemplate().findByNamedParam("select u from
User as u where u.username=:username and
u.password=:password", new String[] { "username",
"password" }
From the stack, the following error seems to be on the
JDBC driver side. Any suggestions of solving this
problem?
org.springframework.jdbc.BadSqlGrammarException: Bad
SQL grammar [] in task 'Hibernate operation'; nested
exception is java.sql.SQLException: ERROR: operator
does not exist: character varying = bytea
java.sql.SQLException: ERROR: operator does not exist:
character varying = bytea
at
org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1365)
at
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1160)
at
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:172)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:387)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:328)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:238)
at
org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
at
net.sf.hibernate.impl.BatcherImpl.getResultSet(BatcherImpl.java:88)
at
net.sf.hibernate.loader.Loader.getResultSet(Loader.java:875)
at
net.sf.hibernate.loader.Loader.doQuery(Loader.java:269)
at
net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:133)
at
net.sf.hibernate.loader.Loader.doList(Loader.java:1033)
at
net.sf.hibernate.loader.Loader.list(Loader.java:1024)
at
net.sf.hibernate.hql.QueryTranslator.list(QueryTranslator.java:854)
at
net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1553)
at
net.sf.hibernate.impl.QueryImpl.list(QueryImpl.java:39)
at
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TIP 4: Don't 'kill -9' the postmaster
Dave Cramer
Dave
Vernon wrote:
--
Dave Cramer
http://www.postgresintl.com
519 939 0336
ICQ#14675561
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TIP 6: Have you searched our list archives?
David Gagnon
I just ran into what i think is a compliance problem. I can't call ResultSet.relative(0) without getting in exception. As stated in the javadoc it's should just do NOTHING.
Am I wrong?
Best regards
/David
rs.relative(skipResults);
if (index==0)
> throw new SQLException("Cannot move to index of 0");
/**
* Moves the cursor a relative number of rows, either positive or
negative.
* Attempting to move beyond the first/last row in the
* result set positions the cursor before/after the
* the first/last row. Calling <code>relative(0)</code> is valid,
but does
* not change the cursor position.
*
* <p>Note: Calling the method <code>relative(1)</code>
* is identical to calling the method <code>next()</code> and
* calling the method <code>relative(-1)</code> is identical
* to calling the method <code>previous()</code>.
*
* @param rows an <code>int</code> specifying the number of rows to
* move from the current row; a positive number moves the cursor
* forward; a negative number moves the cursor backward
* @return <code>true</code> if the cursor is on a row;
* <code>false</code> otherwise
* @exception SQLException if a database access error occurs,
* there is no current row, or the result set type is
* <code>TYPE_FORWARD_ONLY</code>
* @since 1.2
*/
Kris Jurka
On Mon, 18 Apr 2005, David Gagnon wrote:
> I just ran into what i think is a compliance problem. I can't call
> ResultSet.relative(0) without getting in exception. As stated in the
> javadoc it's should just do NOTHING.
This is a bug and is only present in the 7.4 tree. I've fixed it there.
I'll gather up a couple more 7.4 changes and put out a new 7.4 release in
a couple of days. For now I can offer you
http://www.ejurka.com/pgsql/jars/dgagnon/pg74-dg-jdbc3.jar as I don't
happen to have other compilers available.
Kris Jurka
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
David Gagnon
I also try a rs.relative(-1) when I was positionned before the
first row. I was not eable to get my result after that. I'm note sure
about this one though.. And it's not easy to test it agains ... I you
don't know about this one .. it's either a mistake I made myself or
another bug. If you want I cant test it when I have a chance...
Let me know!
Thanks again
/David