addReader
open override fun addReader(reader: KnnVectorsReader, docMap: MergeState.DocMap, liveDocs: Bits?): IncrementalHnswGraphMerger
Adds a reader to the graph merger if it meets the following criteria: 1. Does not contain any deleted docs 2. Is a HnswGraphProvider 3. Has the most docs of any previous reader that met the above criteria