Estou tentando fazer um auto relacionamento e até consigo criar as tabelas, mas depois ele gera um erro, o que pode ser?

Caused by: org.hibernate.exception.SQLGrammarException: Error accessing column metadata: beneficiario at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97) at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.convertSQLException(InformationExtractorJdbcDatabaseMetaDataImpl.java:98) at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.getForeignKeys(InformationExtractorJdbcDatabaseMetaDataImpl.java:849) at org.hibernate.tool.schema.extract.internal.TableInformationImpl.foreignKeys(TableInformationImpl.java:97) at org.hibernate.tool.schema.extract.internal.TableInformationImpl.getForeignKeys(TableInformationImpl.java:91) at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.checkForExistingForeignKey(AbstractSchemaMigrator.java:471) at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.applyForeignKeys(AbstractSchemaMigrator.java:423) at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.performMigration(AbstractSchemaMigrator.java:249) at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:114) at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:183) at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72) at org.hibernate.internal.SessionFactoryImpl.(SessionFactoryImpl.java:312) at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:462) at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:892) ... 6 more Caused by: org.postgresql.util.PSQLException: ERROR: column t1.tgconstrname does not exist Posição: 113 at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2102) at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1835) at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257) at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:374) at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:254) at org.postgresql.jdbc2.AbstractJdbc2DatabaseMetaData.getImportedExportedKeys(AbstractJdbc2DatabaseMetaData.java:3373) at org.postgresql.jdbc2.AbstractJdbc2DatabaseMetaData.getImportedKeys(AbstractJdbc2DatabaseMetaData.java:3566) at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.getForeignKeys(InformationExtractorJdbcDatabaseMetaDataImpl.java:798) ... 17 more

Classe

package modelo;

import java.io.Serializable;

import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.JoinColumn; import javax.persistence.ManyToOne; import javax.persistence.OneToMany; import javax.persistence.SequenceGenerator; import javax.persistence.Table;

@Entity @Table(name = "beneficiario", schema = "orcamento") @SequenceGenerator(name = "SeqBeneficiario", sequenceName = "seq_Beneficiario", initialValue = 1) public class Beneficiario implements Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO, generator = "SeqBeneficiario") private Integer id; private String nome; @ManyToOne private Beneficiario responsavel;

public Integer getId() {
    return id;
}

public void setId(Integer id) {
    this.id = id;
}

public String getNome() {
    return nome;
}

public void setNome(String nome) {
    this.nome = nome;
}

public Beneficiario getResponsavel() {
    return responsavel;
}

public void setResponsavel(Beneficiario responsavel) {
    this.responsavel = responsavel;
}

}