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Updated 3 months ago

how to query one specific index from multiple available

I'm having about 1000 documents with technical hardware specifications, where each document have a separate index created and one document have around 100-150 pages. What will be best recommended implementation to allow me when I have a question about a specific model, to be used only the index that will have that specific information and not query on all indexes ? Thanks

5 comments

AAndrei

@Logan M @WhiteFang_Jr any recommendation ? I was thinking to use SubQuestionQueryEngine and Tools there is a better option ? Btw, there is a limitation in numbers of tools we can create ? Thanks

WWhiteFang_Jr

I think a RouterQueryEngine will be the best wat to go here: https://docs.llamaindex.ai/en/stable/module_guides/querying/router/root.html#routers

Define the index and provide a GOOD description that can help to pick the index

AAndrei

@WhiteFang_Jr if I understand correctly as a comparation using RouterQueryEngine will select for final response only one data source, and if I use SubQuestionQueryEngine will have more sub questions only for specific relevant data source? And using multi-index QueryFusionRetriever will query over all data source in the same time ?

AAndrei

@WhiteFang_Jr @Logan M can you confirm this ?

WWhiteFang_Jr

RouterQueryEngine: It picks the index based on the description provided to each index.
Subquestion: It will generate subquestions for the tool which gets picked from the description.
QueryFusion: It will retrive nodes from all the index and then rerank them and then return the highest order nodes

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