Fix DiskANN LRU Set Invalid Medoid (#97)

Signed-off-by: Patrick Weizhi Xu <[email protected]>
zilliztech · Sep 19, 2023 · 555c56d · 555c56d
1 parent e0a3769
commit 555c56d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/thirdparty/DiskANN/src/pq_flash_index.cpp b/thirdparty/DiskANN/src/pq_flash_index.cpp
@@ -1452,7 +1452,7 @@ namespace diskann {
  }
  }
  }
- if (k_search > 0) {
+ if (k_search > 0 && indices[0] != -1) {
  lru_cache.put(vec_hash, indices[0]);
  }