From 642006c8e23ba0a6762ed634124d21534f7d2345 Mon Sep 17 00:00:00 2001
From: Kevin Hu <kevinhu.sh@gmail.com>
Date: Thu, 22 Aug 2024 10:02:04 +0800
Subject: [PATCH] filter out + in es query (#2046)

### What problem does this PR solve?

#2028

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
- [ ]
---
 rag/nlp/query.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rag/nlp/query.py b/rag/nlp/query.py
index 40f1d2bf6..ccd1a5af2 100644
--- a/rag/nlp/query.py
+++ b/rag/nlp/query.py
@@ -32,7 +32,7 @@ class EsQueryer:
 
     @staticmethod
     def subSpecialChar(line):
-        return re.sub(r"([:\{\}/\[\]\-\*\"\(\)\|~\^])", r"\\\1", line).strip()
+        return re.sub(r"([:\{\}/\[\]\-\*\"\(\)\|\+~\^])", r"\\\1", line).strip()
 
     @staticmethod
     def isChinese(line):