[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3096) Count operator with idenfication variable w/ composite primary key produces bad sql
Count operator with idenfication variable w/ composite primary key produces bad sql
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Key: HHH-3096
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3096
Project: Hibernate3
Issue Type: Bug
Reporter: Bob Tiernay
@EmbeddedId
private Id id;
@Embeddable
public static class Id implements Serializable {
private static final long serialVersionUID = 6475618094377929936L;
@Column(name="TG_ID", nullable = false)
private Integer groupId;
@Column(name="MBR_ID", nullable = false)
private Integer memberId;
public Id() {
// Empty
}
public Id(Integer groupId, Integer memberId) {
super();
this.groupId = groupId;
this.memberId = memberId;
}
@Override
public boolean equals(Object other) {
if (other == this) {
return true;
} else if (other instanceof Id) {
return groupId.equals(((Id) other).groupId)
&& memberId.equals(((Id) other).memberId);
}
return false;
}
@Override
public int hashCode() {
return groupId.hashCode() ^ memberId.hashCode();
}
}
@NamedQuery(name = "GroupMember.getCountByGroup", query = "SELECT COUNT(gm)
FROM GroupMember gm WHERE gm.id.groupId = :groupId")
produces
Hibernate: /* named HQL query GroupMember.getCountByGroup */ select
count((groupmembe0_.TG_ID, groupmembe0_.MBR_ID)) as col_0_0_ from GROUP_MEMBER
groupmembe0_ where groupmembe0_.TG_ID=?
and the following hibernate exception
Caused by: java.sql.SQLException: ORA-00907: missing right parenthesis
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:745)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:216)
at
oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:810)
at
oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1039)
at
oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:850)
at
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1134)
at
oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3339)
at
oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3384)
at
org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1787)
at org.hibernate.loader.Loader.doQuery(Loader.java:674)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader
Which is consistent with what Oracle produces by manual query execution. The problem is
the extra set of parenthesis around the composite primary key columns which appear to be
invalid (at least for Oracle)
The recommend fix would be to use COUNT(*) or count(groupmembe0_.TG_ID,
groupmembe0_.MBR_ID) in yhis case
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