hibernate/hibernate-orm · error · QueryException

Unsupported model part container: " + modelPartContainer

Error message

Unsupported model part container: " + modelPartContainer

What it means

Error "Unsupported model part container: " + modelPartContainer" thrown in hibernate/hibernate-orm.

Source

Thrown at hibernate-core/src/main/java/org/hibernate/dialect/function/array/HANAUnnestFunction.java:229

								)
						);
					}
					return new SqlTuple( expressions, null );
				}
			}

			private void addIdColumns(ModelPartContainer modelPartContainer, List<ColumnInfo> idColumns) {
				if ( modelPartContainer instanceof EntityValuedModelPart entityValuedModelPart ) {
					addIdColumns( entityValuedModelPart.getEntityMappingType(), idColumns );
				}
				else if ( modelPartContainer instanceof PluralAttributeMapping pluralAttributeMapping ) {
					addIdColumns( pluralAttributeMapping, idColumns );
				}
				else if ( modelPartContainer instanceof EmbeddableValuedModelPart embeddableModelPart ) {
					addIdColumns( embeddableModelPart, idColumns );
				}
				else {
					throw new QueryException( "Unsupported model part container: " + modelPartContainer );
				}
			}

			private void addIdColumns(EmbeddableValuedModelPart embeddableModelPart, List<ColumnInfo> idColumns) {
				if ( embeddableModelPart instanceof EmbeddedCollectionPart collectionPart ) {
					addIdColumns( collectionPart.getCollectionAttribute(), idColumns );
				}
				else {
					addIdColumns( embeddableModelPart.asAttributeMapping().getDeclaringType(), idColumns );
				}
			}

			private void addIdColumns(PluralAttributeMapping pluralAttributeMapping, List<ColumnInfo> idColumns) {
				final var ddlTypeRegistry = pluralAttributeMapping.getCollectionDescriptor()
						.getFactory()
						.getTypeConfiguration()
						.getDdlTypeRegistry();
				addIdColumns( pluralAttributeMapping.getKeyDescriptor().getKeyPart(), ddlTypeRegistry, idColumns );

View on GitHub (pinned to fad1729dce)

Solutions

1. Unnest only supported entity/embeddable plural attributes on HANA.

When it happens

Trigger: Triggered when the application calls a Hibernate dialect feature that the configured database dialect cannot provide: Unsupported model part container (HANA unnest).

Common situations: Common when running against a database whose dialect lacks this capability, when a mapping or HQL/Criteria query requests unsupported functionality, or when the wrong dialect is configured for the database in use. Error: Unsupported model part container (HANA unnest).

AI-assisted analysis of hibernate/hibernate-orm@fad1729dce (2026-08-22). Data as JSON: /api/errors/e1867136a70746f5. Report an issue: GitHub.