From 804c57519f31be5990bd79b5733f010a2175672b Mon Sep 17 00:00:00 2001
From: JT-Dev-215 <65767260+JT-Dev-215@users.noreply.github.com>
Date: Wed, 8 May 2024 00:54:13 +0700
Subject: [PATCH] fix: PGVector similarity score (#817)

---
 packages/core/src/storage/vectorStore/PGVectorStore.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/core/src/storage/vectorStore/PGVectorStore.ts b/packages/core/src/storage/vectorStore/PGVectorStore.ts
index b48848577c..3109d9d37c 100644
--- a/packages/core/src/storage/vectorStore/PGVectorStore.ts
+++ b/packages/core/src/storage/vectorStore/PGVectorStore.ts
@@ -294,7 +294,7 @@ export class PGVectorStore implements VectorStore {
 
     const ret = {
       nodes: nodes,
-      similarities: results.rows.map((row) => row.s),
+      similarities: results.rows.map((row) => 1 - row.s),
       ids: results.rows.map((row) => row.id),
     };