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undocument a fixed limitation

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Gavin 2022-01-03 17:06:17 +01:00 committed by Gavin King
parent 0cf96c09b7
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documentation/src/main/asciidoc/userguide/chapters/query/hql/QueryLanguage.adoc
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@ -253,8 +253,8 @@ An `insert` statement must be executed by calling `Query#executeUpdate()`.
====
`insert` statements are inherently _not_ polymorphic!
The `targetFields` list is of fixed length, whereas each subclass of an entity class might declare additional fields.
For an entity involved in a mapped inheritance hierarchy, only attributes declared directly by the named entity may be used in the list of target fields.
Superclass attributes are not allowed, and subclass attributes do not make sense.
If the entity is involved in a mapped inheritance hierarchy, only attributes declared directly by the named entity and its superclasses may occur in the list of target fields.
Attributes declared by subclasses may not occur.
====
The `queryExpression` may be any valid `select` query, with the caveat that the types of the values in the `select` list must match the types of the target fields.