11:25 a.m.
[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-4738?page=c...
]
Stephan Vollmer commented on HHH-4738:
--------------------------------------
I just encountered the same problem with Hibernate 3.5.2 and Derby 10.6.0.1. It is visible
when these conditions are satisfied:
* The JPA QL is {{"select count(t) from MyEntity t"}}. When the Query is
{{select count(\*) from MyEntity}}, then everything works fine.
* The entity {{MyEntity}} has a composite ID that consists of 2 (or probably more)
columns.
Example:
{code}
@Entity
public class PsCsBatRow {
@Id
private PsCsBatRowId id;
}
@Embeddable
public class PsCsBatRowId implements Serializable {
private static final long serialVersionUID = 1L;
@Column(length = 20, nullable = false)
private String csBaEinwId;
@Column(length = 20, nullable = false)
private String csBaEinwLfdnr;
}
{code}
* Hibernate creates the following SQL statement. It seems like the 2 columns in the
{{count(...)}} expression are the cause:
{code:sql}
/* select
count(t)
from
PsCsBatRow t */ select
count((pscsbatrow0_.cs_ba_einw_id,
pscsbatrow0_.cs_ba_einw_lfdnr)) as col_0_0_
from
ps_cs_bat_row pscsbatrow0_ fetch first 2 rows only
{code}
* Derby throws this exception:
{noformat}
java.sql.SQLSyntaxErrorException: Syntax error: Encountered "," at line 1,
column 81.
at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement.<init>(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement20.<init>(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement30.<init>(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement40.<init>(Unknown Source)
at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
at org.apache.derby.iapi.jdbc.BrokeredConnection.prepareStatement(Unknown Source)
{noformat}
I hope this helps!
getSingleResult returning SQLException in DerbyDialect
------------------------------------------------------
Key: HHH-4738
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4738
Project: Hibernate Core
Issue Type: Bug
Components: query-hql
Affects Versions: 3.5.0-Beta-2
Environment: hibernate 3.5.0-0.2, Glassfish v3, Derby
Reporter: Samuel Halliday
Assignee: Gail Badner
Attachments: WebJpa.zip
I am encountering problems when issuing getSingleResult queries using the Glassfish v3
"hibernate 3.5.0-0.2". These queries work fine if I use hibernate 3.3.1.GA, or a
PostgreSQL backend/dialect. Something between 3.3.1 and 3.5 has therefore introduced this
bug.
The queries are along the lines of
[code]
Query q = em.createQuery("SELECT COUNT(s) FROM MyTable s");
Long result = (Long) q.getSingleResult();
[/code]
and
[code]
Query query = em.createQuery("SELECT s FROM MyTable s ORDER BY s.id");
query.setFirstResult(id);
query.setMaxResults(1);
MyTable random = (MyTable) query.getSingleResult();
[/code]
The exception I am seeing is below, when used with (at least) the Java Derby DB. The
message is "The column position '1' is out of range. The number of columns
for this ResultSet is '0'."
[code]
Caused by: java.sql.SQLException: The column position '1' is out of range. The
number of columns for this ResultSet is '0'.
at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown
Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
at org.apache.derby.client.am.ColumnMetaData.getColumnType(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.setInt(Unknown Source)
at org.hibernate.loader.Loader.bindLimitParameters(Loader.java:1669)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1594)
at org.hibernate.loader.Loader.doQuery(Loader.java:694)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:257)
at org.hibernate.loader.Loader.doList(Loader.java:2232)
... 42 more
Caused by: org.apache.derby.client.am.SqlException: The column position '1' is
out of range. The number of columns for this ResultSet is '0'.
at org.apache.derby.client.am.ColumnMetaData.checkForValidColumnIndex(Unknown
Source)
... 49 more
[/code]
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