Invalid generated SQL query when accessing join from a treated abstract superclass path
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- 31 Jan 2023, 03:50 PM
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Fixed
Created January 31, 2023 at 3:49 PM
Updated March 1, 2023 at 8:33 PM
Resolved February 9, 2023 at 1:02 PM
When having the following model structure: (see the attachment for a minimal Spring project as a full reproducer)
@Entity @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS) public abstract class Publication extends BaseEntity { @Column(name = "title") private String title; } @Entity public abstract class Book extends Publication { @OneToMany(mappedBy = "book", cascade = CascadeType.REMOVE) private List<AuthorParticipation> participations = new ArrayList<>(); } @Entity @Table public class LongBook extends Book {} @Entity @Table public class ShortBook extends Book {} @Entity @Table public class Author extends BaseEntity { @Column(name = "name") private String name; } @Entity @Table public class AuthorParticipation extends BaseEntity { @ManyToOne @JoinColumn(name = "id_author", nullable = false) private Author author; @ManyToOne @JoinColumn(name = "id_book", nullable = false) private Book book; }And when querying entities by the parent class (in this example:
Publication) with the Criteria API and treating the root path to another abstract class, when accessing a join, for example:publicationRepository.findAll( (root, query, criteriaBuilder) -> { Root<Book> asBook = criteriaBuilder.treat(root, Book.class); Join<Book, AuthorParticipation> joinAuthors = asBook.join("participations"); return criteriaBuilder.equal( joinAuthors .get("author") .get("name"), "John Doe"); });An invalid SQL statement is generated:
/* <criteria> */ select p1_0.id, p1_0.clazz_, p1_0.title from ( ) p1_0 join `demo_application$author_participation` p2_0 on p1_0.id=p2_0.id_book join `demo_application$author` a1_0 on a1_0.id=p2_0.id_author where a1_0.name=?Traceback:
org.hibernate.exception.SQLGrammarException: JDBC exception executing SQL [/* <criteria> */ select p1_0.id,p1_0.clazz_,p1_0.title from ( ) p1_0 join `demo_application$author_participation` p2_0 on p1_0.id=p2_0.id_book join `demo_application$author` a1_0 on a1_0.id=p2_0.id_author where a1_0.name=?] at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:64) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:56) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.DeferredResultSetAccess.executeQuery(DeferredResultSetAccess.java:253) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.DeferredResultSetAccess.getResultSet(DeferredResultSetAccess.java:146) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.advanceNext(JdbcValuesResultSetImpl.java:205) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.processNext(JdbcValuesResultSetImpl.java:85) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.jdbc.internal.AbstractJdbcValues.next(AbstractJdbcValues.java:29) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.internal.RowProcessingStateStandardImpl.next(RowProcessingStateStandardImpl.java:88) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:177) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:33) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.doExecuteQuery(JdbcSelectExecutorStandardImpl.java:443) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.executeQuery(JdbcSelectExecutorStandardImpl.java:166) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.list(JdbcSelectExecutorStandardImpl.java:91) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.sql.exec.spi.JdbcSelectExecutor.list(JdbcSelectExecutor.java:31) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.lambda$new$0(ConcreteSqmSelectQueryPlan.java:113) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.withCacheableSqmInterpretation(ConcreteSqmSelectQueryPlan.java:335) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.performList(ConcreteSqmSelectQueryPlan.java:276) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.QuerySqmImpl.doList(QuerySqmImpl.java:571) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.spi.AbstractSelectionQuery.list(AbstractSelectionQuery.java:363) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.sqm.internal.QuerySqmImpl.list(QuerySqmImpl.java:1073) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.hibernate.query.Query.getResultList(Query.java:94) ~[hibernate-core-6.1.6.Final.jar:6.1.6.Final] at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:463) ~[spring-data-jpa-3.0.1.jar:3.0.1]