As RetrievalAugmentationAdvisor is expected to replace QuestionAnswerAdvisor, it should also support FILTER_EXPRESSION the way that QuestionAnswerAdvisor does.
This makes it possible to configure the advisor as a default advisor when creating a ChatClient and then plug in a filter expression for searching the vector store when submitting a prompt.
I suspect, based on how this works with RetrievalAugmentationAdvisor that the change required would be made to VectorStoreDocumentRetriever, as that's the place and implementation of DocumentRetriever that would be able to make use of the expression.
As
RetrievalAugmentationAdvisoris expected to replaceQuestionAnswerAdvisor, it should also supportFILTER_EXPRESSIONthe way thatQuestionAnswerAdvisordoes.This makes it possible to configure the advisor as a default advisor when creating a
ChatClientand then plug in a filter expression for searching the vector store when submitting a prompt.I suspect, based on how this works with
RetrievalAugmentationAdvisorthat the change required would be made toVectorStoreDocumentRetriever, as that's the place and implementation ofDocumentRetrieverthat would be able to make use of the expression.