Error operator does not exist character varying bytea

Hi, I’m trying to migrate from HSQLDB Default Datasource on JBoss 4.0.3rc1 to a Postgresql DB.

When using my app on HSQLDB, no problem. When trying to use pgSql Datasource, got this error:

java.sql.SQLException: ERROR: operator does not exist: character varying = bytea

(see exception stack trace)

You will see I’m using a UserEnumType (enhanced version posted in wiki) to persit an enum called ‘userGroup’.

To terminate, here is my query and ‘create table’ pg script:

// GroupEnum group;

list = (List<User>) em.createQuery(«from User where userGroup = :group»).setParameter(«group», group).getResultList();

CREATE TABLE users — GENERATED BY HIBERNATE

(

id int8 NOT NULL,

disabled bool NOT NULL,

«password» varchar(32),

username varchar(32),

firstconnection timestamp,

lastconnection timestamp,

usergroup varchar(20),

person_id int8,

CONSTRAINT users_pkey PRIMARY KEY (id),

CONSTRAINT fk4d495e8e149448b FOREIGN KEY (person_id) REFERENCES person (id) ON UPDATE NO ACTION ON DELETE NO ACTION,

CONSTRAINT users_username_key UNIQUE (username)

)

WITH OIDS;

Any idea?

Thx,

Renaud

—————-

Hibernate version: 3.1alpha [JBoss 4.0.3RC1 w/EJB3]

Mapping documents:

package be.sysmedit.model.core.app;

import java.io.Serializable;

import java.util.Date;

import java.util.HashSet;

import java.util.Set;

import javax.persistence.CascadeType;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.FetchType;

import javax.persistence.GeneratorType;

import javax.persistence.Id;

import javax.persistence.ManyToMany;

import javax.persistence.ManyToOne;

import javax.persistence.Table;

import javax.persistence.Transient;

import org.apache.commons.lang.builder.HashCodeBuilder;

import org.apache.commons.lang.builder.ToStringBuilder;

import org.hibernate.annotations.Parameter;

import org.hibernate.annotations.Type;

import org.hibernate.annotations.TypeDef;

import org.hibernate.annotations.TypeDefs;

import be.sysmedit.model.core.Person;

import be.sysmedit.model.itrequest.Request;

import be.sysmedit.persistence.types.EnumUserType;

/**

* Represents the application user.

*

* @todo Ajouter une spécialisation ItUser dans .model.itrequest et transférer

* watches

*/

@TypeDefs( {

@TypeDef(name = «group», typeClass = EnumUserType.class, parameters = {

@Parameter(name = «enumClassName», value = «be.sysmedit.model.core.app.GroupEnum»)

})

})

@Entity

// Needed by postgresql since it’s a reserved word and hibernate don’t care:

@Table (name = «USERS»)

public class User implements Serializable {

private Long id;

private String userName;

private String password;

private boolean disabled;

private Date firstConnection;

private Date lastConnection;

private GroupEnum userGroup;

public Person person;

public Set<Request> requestWatches = new HashSet<Request>();

public User() {

}

public User(String userName, String password) {

this.userName = userName;

this.password = password;

this.disabled = false;

this.firstConnection = this.lastConnection = new Date();

}

public User(String userName, String password, GroupEnum userGroup) {

this.userName = userName;

this.password = password;

this.userGroup = userGroup;

this.disabled = false;

this.firstConnection = this.lastConnection = new Date();

}

@Id(generate = GeneratorType.AUTO)

public Long getId() {

return id;

}

private void setId(Long id) {

this.id = id;

}

@Column(length = 32, unique = true)

public String getUserName() {

return userName;

}

public void setUserName(String userName) {

this.userName = userName;

}

@Column(length = 32)

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

public boolean isDisabled() {

return disabled;

}

public void setDisabled(boolean disabled) {

this.disabled = disabled;

}

public Date getFirstConnection() {

return firstConnection;

}

public void setFirstConnection(Date firstConnection) {

this.firstConnection = firstConnection;

}

public Date getLastConnection() {

return lastConnection;

}

public void setLastConnection(Date lastConnection) {

this.lastConnection = lastConnection;

}

@ManyToOne(fetch = FetchType.EAGER, cascade = { CascadeType.PERSIST,

CascadeType.MERGE, CascadeType.REFRESH })

public Person getPerson() {

return person;

}

public void setPerson(Person person) {

this.person = person;

}

@Type(type = «group»)

@Column(length = 20)

public GroupEnum getUserGroup() {

return userGroup;

}

public void setUserGroup(GroupEnum userGroup) {

this.userGroup = userGroup;

}

/**

* Promouvoit ou dégrade un utilisateur. Pour ce faire, l’utilisateur source

* doit avoir au moins les droits qu’il tente d’attribuer

*

* @todo considérer le cas de la dégradation (source doit avoir au moins les

* droits de l’utilisateur)

* @param source

* Utilisateur à l’origine du changement

* @param promotion

* Nouveau groupe

*/

@Transient

public void promoteUser(User source, GroupEnum promotion)

throws AccessRightsViolationException {

if (source.getUserGroup().compareTo(promotion) >= 0) { // La source

// doit avoir au

// moins les

// droits de la

// promotion

this.userGroup = promotion;

} else {

throw new AccessRightsViolationException(«User »

+ source.getUserName() + » can’t promote with » + promotion);

}

}

@ManyToMany(fetch = FetchType.LAZY, cascade = { CascadeType.ALL }, mappedBy = «userWatches»)

public Set<Request> getRequestWatches() {

return requestWatches;

}

public void setRequestWatches(Set<Request> requestWatches) {

this.requestWatches = requestWatches;

}

@Transient

public void addRequestWatch(Request request) {

if (!this.requestWatches.contains(request)) {

this.requestWatches.add(request);

request.addWatch(this);

}

}

@Transient

public void removeRequestWatch(Request request) {

requestWatches.remove(request);

request.removeWatch(this);

}

@Transient

public boolean isWatching(Request request) {

return this.requestWatches.contains(request);

}

@Transient

public boolean isPromotable() {

return (userGroup.isItAdmin() || userGroup.isItUser());

}

@Transient

public boolean isDegradable() {

return (userGroup.isItAdmin() || userGroup.isSuperUser());

}

@Transient

public void promote() {

if (userGroup.isItAdmin())

userGroup = GroupEnum.SUPERUSER;

else if (userGroup.isItUser())

userGroup = GroupEnum.ITREQUEST_ADMIN;

}

@Transient

public void degrade() {

if (userGroup.isItAdmin())

userGroup = GroupEnum.ITREQUEST_USER;

else if (userGroup.isSuperUser())

userGroup = GroupEnum.ITREQUEST_ADMIN;

}

@Override

public int hashCode() {

if (id != null) {

return new HashCodeBuilder().append(id).toHashCode();

} else {

return super.hashCode();

}

}

@Override

@Transient

public String toString() {

return new ToStringBuilder(this).append(«userName», userName).append(

«disabled», disabled).toString();

}

@Override

@Transient

public boolean equals(Object o) {

if (o instanceof User) {

User user = (User) o;

return (id != null) ? id.equals(user.getId())

: super.equals(o);

}

return false;

}

@Transient

public int compareTo(Object obj) {

User user = (User) obj;

return this.userName.compareTo(user.getUserName());

}

}

Code between sessionFactory.openSession() and session.close():

N/A

Full stack trace of any exception that occurs:

_Exception:_

javax.ejb.EJBTransactionRolledbackException: null; CausedByException is:

could not execute query

at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:65)

at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:117)

at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:138)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:72)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:39)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:63)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:93)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:148)

at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:65)

at $Proxy82.findByGroup(Unknown Source)

at be.sysmedit.services.itrequest.ApplicationServiceBean.checkAdmin(ApplicationServiceBean.java:249)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:99)

at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:33)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:66)

at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:134)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:72)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:39)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:63)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:93)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:183)

at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:107)

at org.jboss.aspects.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:30)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:79)

at $Proxy94.checkAdmin(Unknown Source)

at be.sysmedit.web.admin.ApplicationBean.verifySetup(ApplicationBean.java:50)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:138)

at oracle.adf.view.faces.component.UIXComponentBase.__broadcast(UIXComponentBase.java:1097)

at oracle.adf.view.faces.component.UIXCommand.broadcast(UIXCommand.java:204)

at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:110)

at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:184)

at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:271)

at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:102)

at javax.faces.webapp.FacesServlet.service(FacesServlet.java:109)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:310)

at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:183)

at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)

at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)

at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)

at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)

at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)

at java.lang.Thread.run(Thread.java:595)

org.hibernate.exception.SQLGrammarException: could not execute query

at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:59)

at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)

at org.hibernate.loader.Loader.doList(Loader.java:1861)

at org.hibernate.loader.Loader.list(Loader.java:1842)

at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:407)

at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:273)

at org.hibernate.impl.SessionImpl.list(SessionImpl.java:850)

at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)

at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:41)

at be.sysmedit.persistence.core.app.UserDAOBean.findByGroup(UserDAOBean.java:109)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:99)

at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:33)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:113)

at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:138)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:72)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:39)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:63)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:93)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:148)

at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:65)

at $Proxy82.findByGroup(Unknown Source)

at be.sysmedit.services.itrequest.ApplicationServiceBean.checkAdmin(ApplicationServiceBean.java:249)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:99)

at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:33)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:66)

at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:134)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:72)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:39)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:63)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:93)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:183)

at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:107)

at org.jboss.aspects.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:30)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)

at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:79)

at $Proxy94.checkAdmin(Unknown Source)

at be.sysmedit.web.admin.ApplicationBean.verifySetup(ApplicationBean.java:50)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:585)

at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:138)

at oracle.adf.view.faces.component.UIXComponentBase.__broadcast(UIXComponentBase.java:1097)

at oracle.adf.view.faces.component.UIXCommand.broadcast(UIXCommand.java:204)

at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:110)

at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:184)

at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:271)

at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:102)

at javax.faces.webapp.FacesServlet.service(FacesServlet.java:109)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:310)

at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:183)

at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)

at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)

at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)

at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)

at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)

at java.lang.Thread.run(Thread.java:595)

Caused by: java.sql.SQLException: ERROR: operator does not exist: character varying = bytea

at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1471)

at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1256)

at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:175)

at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:389)

at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:330)

at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:240)

at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:296)

at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:120)

at org.hibernate.loader.Loader.getResultSet(Loader.java:1537)

at org.hibernate.loader.Loader.doQuery(Loader.java:638)

at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:221)

at org.hibernate.loader.Loader.doList(Loader.java:1858)

… 90 more

Name and version of the database you are using:

PostgreSQL 8.0.3

The generated SQL (show_sql=true):

select user0_.id as id, user0_.disabled as disabled3_, user0_.password as password3_, user0_.userName as userName3_, user0_.firstConnection as firstCon5_3_, user0_.lastConnection as lastConn6_3_, user0_.person_id as person8_3_, user0_.userGroup as userGroup3_ from USERS user0_ where user0_.userGroup=?

Debug level Hibernate log excerpt:

—

The error org.postgresql.util.PSQLException: ERROR: operator does not exist: my_enum_type = character varying can be fixed by using implicit conversions in PostgreSQL or using explicit conversions by passing the java.sql.Types.OTHER to Spring JDBC.

The exception you will receive

When using Spring JDBC or Spring Data JDBC and custom Java enum types, you might run into the following problem:

org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [SELECT * FROM your_table where enum_column = :enum_value;] nested exception is org.postgresql.util.PSQLException: ERROR: operator does not exist: my_enum_type = character varying

Hint: No operator matches the given name and argument type(s). You might need to add explicit type casts.

The exception can occur if you are having enums with either

1. or you are trying to persist an Spring Data JDBC entity with a repository save method
2. executing a query on your own with one of Spring JDBC’s jdbcTemplate methods like query

Making Spring Data JDBC’s save method work with enumerations

With Spring Data JDBC you have probably an SQL definition like

CREATE TYPE my_enum_type AS ENUM('VALUE_1','VALUE_2')

CREATE TABLE my_table (enum_column my_enum_type);

The belonging Java source code will look like

public enum MyEnumType {
	VALUE_1, VALUE_2
}

@Table("my_table")
public class MyEntity {
	private MyEnumType type;
	// getter & setter ...
}

@Repository
public class MyTableRepository extends CrudRepository</* ... */> {
}

@Controller
public class MyTableController {
	@Autowired
	MyTableRepository
    
	@GetMapping("/")
	public void save() {
		MyEntity entity = new MyEntity();
		entity.setType(MyEnumType.VALUE_1);
		repository.save(entity);
	}
}

As soon as you try to call repository.save you will receive an exception. The problem is, that Spring Data JDBC does not support enumerations at the moment. See Jens Schauder’s answer at stackoverflow.

Jens does also link to another SO answer which describes how to solve the problem. To make the code sample above working, we can use PostgreSQL’s implicit conversion feature as described in the linked answer. The following SQL definition would reside somewhere in your Liquibase or Flyway migration definition:

<!-- Liquibase migration definition -->
<!-- as described above -->
<sql>CREATE TYPE my_enum_type AS ENUM('VALUE_1','VALUE_2')</sql>

<!-- add an additional type -->
<sql>CREATE CAST (varchar AS my_enum_type) WITH INOUT AS IMPLICIT</sql>

With help of the described CREATE CAST PostgreSQL will automatically try convert each String/varchar into the specified enum. You can now do something like

SELECT * FROM my_table WHERE enum_column = 'VALUE_1';
-- OR
INSERT INTO my_table(enum_column) VALUES('VALUE_1')

After that, repository.save() will work.

Using JdbcTemplate and enumerations

You might think that the specified CREATE CAST definition would also work for something like that:

public class MyRepository {
	@Autowired
    NamedParameterJdbcTemplate jdbcTemplate;

	public List<String> findAll() {
		MapSqlParameterSource parameters = new MapSqlParameterSource("type", MyEnumType.VALUE_1);
		
		return jdbcTemplate
			.queryForList("SELECT enum_column FROM my_table WHERE enum_column = :type", parameters);
	}
}

But this will drive you right into the exception you find at the beginning:

org.postgresql.util.PSQLException: ERROR: operator does not exist: my_enum_type = character varying

The reason for this behavior is how PostgreSQL handles the type casts. This Stackoverflow answer describes the reasons in detail. Spring JDBC does automatically convert the enum value into a Java String type and assigns it to the prepared statement. The underlying PgJDBC drivers then assigns the java.sql.Type.VARCHAR as type for this prepared statement parameter. Due to the assignment of the java.sql.Type, PostgreSQL will no longer try to apply our CREATE CAST conversion.

Solving it by configuration

You can configure your JDBC URL to use the parameter stringtype with value undefined. Each String parameter previously set with setString() will then not have the type definition java.sql.Type.VARCHAR. PostgreSQL applies will then apply our CREATE CAST definition.

Solving it programatically

If you don’t globally want to set stringtype to undefined, you have to use the java.sql.Types.OTHER when adding a value to the MapSqlParameterSource:

// does NOT WORK: 
// .addValue("type", MyEnumType.VALUE_1))
// one of the following does work:
.addValue("type", "VALUE_1", java.sql.Types.OTHER)
// or
.addValue("type", MyEnumType.VALUE_1.getName(), java.sql.Types.OTHER)
// or
.addValue("type", MyEnumType.VALUE_1, java.sql.Types.OTHER)

To make it more convenient, you can extend from MapSqlParameterSource to get something like this:

public static class CustomMapSqlParameterSource extends MapSqlParameterSource {
	public CustomMapSqlParameterSource addEnum(String paramName, Object value) {
		if (!value.getClass().isEnum()) {
			throw new IllegalArgumentException("Given parameter is not of Java type enum");
		}

		addValue(paramName, value, java.sql.Types.OTHER);

		return this;
	}
}

Wrapping it up

This blog post showed you, how you can use native PostgreSQL enumerations with native Java and make them both work with Spring Data JDBC and Spring JDBC.

Контрольный список устранения неполадок:

# 1: В зависимости от типа используемой базы данных вы можете найти имена столбцов и их соответствующие типы данных с помощью этой команды SQL:

SELECT
   table_name,
   column_name,
   data_type
FROM
   information_schema.columns
WHERE
   table_name = 'the-name-of-the-table-in-the-database';

Ожидаемые результаты дадут вам три столбца; и особенно столбец data_type.

Убедитесь, что ваш класс Pojo и соответствующие типы данных соответствуют друг другу.

Обратите внимание: bigint (тип данных) в таблице внутри базы данных может легко совпадать с Long. целое с внутр. символ, варьирующийся в зависимости от строки или основного класса Java, например. класс, хранящий Enums, и так далее.

После подтверждения вышеизложенного выполните следующую проверку -> устранение неполадок:

# 2 : Основная проверка при устранении неполадок заключается в том, чтобы убедиться, что все типы данных полностью совпадают. И обратите внимание на параметры, передаваемые в запрос.

Передача перечисления или любого другого типа данных или типа перечисления, не соответствующего типам данных SQL, может вызвать ошибку (ошибки) «не сопоставлена», даже если класс pojo идеально соответствует структуре таблицы в базе данных.

пример pojo: UserAccountBalance.class

import io.swagger.v3.oas.annotations.media.Schema;
import lombok.*;

@Builder//Lombok
@AllArgsConstructor(access = AccessLevel.PRIVATE)
@NoArgsConstructor(access = AccessLevel.PUBLIC)
@Data//Lombok
@EqualsAndHashCode(callSuper = true)
@ToString(callSuper = true)
@Schema
@Entity(name = "user_account_balance")
@Table(name = "user_account_balance")
public class UserAccountBalance {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "id")
    private long id;

    @NotNull
    @Column(name = "username", nullable = false)
    private String userName;

    @NotNull
    @Column(name="currency_code", nullable = false)
    @Enumerated(EnumType.STRING)
    private CurrencyCode currencyCode;

    @NotNull
    @Column(name = "balance", nullable = false)
    private BigDecimal balance;

//Could be placed into and AuditModel class
    @Column(name = "datecreated", nullable = false, updatable = false)
    @JsonIgnore
    @DateCreated
    @CreationTimestamp
    private LocalDateTime dateCreated;

    @Column(name = "date_updated", nullable = false, updatable = false)
    @JsonIgnore
    @DateUpdated
    private LocalDateTime dateUpdated;

    @NotNull
    @Column(name = "active")
    @JsonIgnore
    private int active;

    @Column(name = "deleted")
    @JsonIgnore
    private int deleted;

}

Класс репозитория:

//Вариант 1: UserAccountBalanceRepository.class

@Repository
public abstract class UserAccountBalanceRepository implements CrudRepository<UserAccountBalance, Long> {

    private final EntityManager entityManager;

    public UserAccountBalanceRepository(@CurrentSession EntityManager entityManager){
        this.entityManager = entityManager;
    }

    @Transactional(readOnly = true)
    @Query(
            value="SELECT uab.*" +
                    " FROM public.user_account_balance uab" +
                    " WHERE (currency_code =cast(:currencyCode AS text)" +
                    " AND userName =:userName" +
                    " AND active =:active)",
            countQuery = "SELECT uab.*" +
                    " FROM public.user_account_balance uab" +
                    " WHERE (currency_code = cast(:currencyCode AS text)" +
                    " AND userName =:userName" +
                    " AND active =:active)",
            nativeQuery = true
    )
    public abstract Optional<UserAccountBalance> findByUserAccountBalance_UserName_And_CurrencyCode(
            String userName,
            CurrencyCode currencyCode,
            int active
    );

}

//Вариант 2: UserAccountBalanceRepository.class

@Repository
public abstract class UserAccountBalanceRepository implements CrudRepository<UserAccountBalance, Long> {

    private final EntityManager entityManager;

    public UserAccountBalanceRepository(@CurrentSession EntityManager entityManager){
        this.entityManager = entityManager;
    }

    @Transactional(readOnly = true)
    @Query(
            value="SELECT uab.*" +
                    " FROM public.user_account_balance uab" +
                    " WHERE (currency_code =:currencyCode" +
                    " AND userName =:userName" +
                    " AND active =:active)",
            countQuery = "SELECT uab.*" +
                    " FROM public.user_account_balance uab" +
                    " WHERE (currency_code = :currencyCode" +
                    " AND userName =:userName" +
                    " AND active =:active)",
            nativeQuery = true
    )
    public abstract Optional<UserAccountBalance> findByUserAccountBalance_UserName_And_CurrencyCode(
            String userName,
            String currencyCode,/*this is what truly worked out for me perfectly*/
            int active
    );

}

№3. Тестировать и еще раз тестировать. Если проблема не устранена, наберитесь терпения и еще раз просмотрите все свои переменные и классы.

№ 4. Если устранение неполадок с использованием варианта № 3 по-прежнему не помогает, подумайте о небольшой прогулке, небольшом отдыхе и свежим взглядом, чтобы посмотреть на все заново, начиная с устранения неполадок № 1.

Надеюсь, это поможет. Здоровья и мира.