hibernate/hibernate-orm · error · UnsupportedOperationException

Ordering for {referenceModelPart} not supported

Error message

Ordering for {referenceModelPart} not supported

What it means

Error "Ordering for {referenceModelPart} not supported" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/AbstractDomainPath.java:105

			if ( embeddableValuedModelPart.getFetchableName()
					.equals( modelPartName ) || ELEMENT_TOKEN.equals( modelPartName ) ) {
				final int size = embeddableValuedModelPart.getNumberOfFetchables();
				final List<Expression> expressions = new ArrayList<>( size );
				for ( int i = 0; i < size; i++ ) {
					final var fetchable = embeddableValuedModelPart.getFetchable( i );
					expressions.add( resolve( fetchable, ast, tableGroup, modelPartName, creationState ) );
				}
				return new SqlTuple( expressions, embeddableValuedModelPart );
			}
			else {
				final var subPart = embeddableValuedModelPart.findSubPart( modelPartName, null );
				assert subPart.asBasicValuedModelPart() != null;
				return resolve( subPart, ast, tableGroup, modelPartName, creationState );
			}
		}
		else {
			// sure it can happen
			throw new UnsupportedOperationException( "Ordering for " + referenceModelPart + " not supported" );
		}
	}

	@Override
	public void apply(
			QuerySpec ast,
			TableGroup tableGroup,
			String collation,
			String modelPartName,
			SortDirection sortOrder,
			Nulls nullPrecedence,
			SqlAstCreationState creationState) {
		apply(
				getReferenceModelPart(),
				ast,
				tableGroup,
				collation,
				modelPartName,

View on GitHub (pinned to fad1729dce)

Solutions

1. Only apply ordering to orderable model parts (basic attributes); remove ORDER BY on the unsupported part or order by a basic attribute instead.

When it happens

Trigger: Thrown when an order-by fragment references a model part for which ordering is not supported.

Common situations: See trigger scenarios.

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/95f4bb236dbda149. Report an issue: GitHub.