Allow for querying on selected subset of documents (chain .get().query())

[rrrozhd]

Checked

• I searched existing ideas and did not find a similar one
• I added a very descriptive title
• I've clearly described the feature request and motivation for it

Feature request

I have a use case, where I potentially need to query only a subset of documents, selected by their ids. Something like running a chain .get().query(). I have not found a beautiful way to do it with the current release, so in the meantime I'm simply putting document ids in the metadata and filter that way.

Motivation

I thought it could be useful after trying to implement the mechanisms proposed here. The article explores optional metadata search via provided SQL tools, which can be useful for establishing time-awareness for conversational agents. After filtering on metadata, the agent performs semantic search on the filtered subset.

Proposal (If applicable)

No response