From 225d91c6d617e3270d7cb2e553d479c92c20b59b Mon Sep 17 00:00:00 2001
From: Kishore Nallan <kishorenc@gmail.com>
Date: Thu, 12 Jan 2023 18:42:44 +0530
Subject: [PATCH] Fix insufficient results during filtering.

Very similar in nature to https://github.com/nmslib/hnswlib/pull/344
---
 hnswlib/hnswalg.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hnswlib/hnswalg.h b/hnswlib/hnswalg.h
index 7f34e62b..fd99f10c 100644
--- a/hnswlib/hnswalg.h
+++ b/hnswlib/hnswalg.h
@@ -306,7 +306,8 @@ class HierarchicalNSW : public AlgorithmInterface<dist_t> {
         while (!candidate_set.empty()) {
             std::pair<dist_t, tableint> current_node_pair = candidate_set.top();
 
-            if ((-current_node_pair.first) > lowerBound && (top_candidates.size() == ef || has_deletions == false)) {
+            if ((-current_node_pair.first) > lowerBound &&
+                (top_candidates.size() == ef || (!isIdAllowed && !has_deletions))) {
                 break;
             }
             candidate_set.pop();