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HHH-16483 Delay copying of cte statement definitions to handle recursion

This commit is contained in:
Marco Belladelli 2023-05-02 15:18:39 +02:00
parent 5578109fe7
commit c08af7469c
1 changed files with 7 additions and 3 deletions
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10
hibernate-core/src/main/java/org/hibernate/query/sqm/tree/cte/SqmCteStatement.java
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@ -42,7 +42,7 @@ import jakarta.persistence.criteria.Subquery;
public class SqmCteStatement<T> extends AbstractSqmNode implements SqmVisitableNode, JpaCteCriteria<T> {
private final SqmCteContainer cteContainer;
private final SqmCteTable<T> cteTable;
private final SqmSelectQuery<?> cteDefinition;
private SqmSelectQuery<?> cteDefinition;
private CteMaterialization materialization;
private CteSearchClauseKind searchClauseKind;
private List<JpaSearchOrder> searchBySpecifications;
@ -146,13 +146,13 @@ public class SqmCteStatement<T> extends AbstractSqmNode implements SqmVisitableN
if ( existing != null ) {
return existing;
}
return context.registerCopy(
final SqmCteStatement<T> copy = context.registerCopy(
this,
new SqmCteStatement<>(
nodeBuilder(),
cteContainer,
cteTable,
cteDefinition.copy( context ),
null,
materialization,
searchClauseKind,
searchBySpecifications,
@ -164,6 +164,10 @@ public class SqmCteStatement<T> extends AbstractSqmNode implements SqmVisitableN
noCycleValue == null ? null : noCycleValue.copy( context )
)
);
// We have to copy the definition object after registering the copy of this because for recursive CTEs
// the select query from clause may contain the current cte statement itself
copy.cteDefinition = cteDefinition.copy( context );
return copy;
}
@Override