From 729e935ea47b35d9a3645f71024d83370ed0cef5 Mon Sep 17 00:00:00 2001
From: Juanma Tristancho <83718131+jmtristancho@users.noreply.github.com>
Date: Fri, 19 May 2023 23:01:26 +0200
Subject: [PATCH] PGVector logger message level (#4920)

# Change the logger message level

The library is logging at `error` level a situation that is not an
error.
We noticed this error in our logs, but from our point of view it's an
expected behavior and the log level should be `warning`.
---
 langchain/vectorstores/pgvector.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/langchain/vectorstores/pgvector.py b/langchain/vectorstores/pgvector.py
index 81951f49..c042cc2f 100644
--- a/langchain/vectorstores/pgvector.py
+++ b/langchain/vectorstores/pgvector.py
@@ -184,7 +184,7 @@ class PGVector(VectorStore):
         with Session(self._conn) as session:
             collection = self.get_collection(session)
             if not collection:
-                self.logger.error("Collection not found")
+                self.logger.warning("Collection not found")
                 return
             session.delete(collection)
             session.commit()