feat: add kNN search, query support #266
Merged
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Addresses the missing kNN support coming from #265.
There are two ways to query nearest vectors in elasticsearch:
They are slightly similar but different at the time, kNN query is considered expert mode, has fewer fields so I kept these objects separate for type-safety.
@DmitrySamoylov do you mind double checking if this is as expected? I went through the documentation and seems like I've covered everything.