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IVF_PQ should not store empty partition in metadata #813

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eddyxu opened this issue Apr 28, 2023 · 0 comments
Open

IVF_PQ should not store empty partition in metadata #813

eddyxu opened this issue Apr 28, 2023 · 0 comments
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bug Something isn't working vector Vector Search

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@eddyxu
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eddyxu commented Apr 28, 2023

Problem Statement

We have a case where the majority of the IVF partitions are empty, but stored in the index. Making things worse, it preserves the centroids of such empty partitions as zeros. which happens to be closer to query vector is. The result is that it returns empty results for many queries.
@eddyxu eddyxu added bug Something isn't working vector Vector Search labels Apr 28, 2023
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