feat: Skip rerank filtering when min_rerank_score is 0.0

lightrag/constants.py

@@ -19,11 +19,11 @@ DEFAULT_MAX_ENTITY_TOKENS = 10000
 DEFAULT_MAX_RELATION_TOKENS = 10000
 DEFAULT_MAX_TOTAL_TOKENS = 30000
 DEFAULT_HISTORY_TURNS = 0
-DEFAULT_ENABLE_RERANK = True
 DEFAULT_COSINE_THRESHOLD = 0.2
 DEFAULT_RELATED_CHUNK_NUMBER = 5
 
 # Rerank configuration defaults
+DEFAULT_ENABLE_RERANK = True
 DEFAULT_MIN_RERANK_SCORE = 0.0
 
 # Separator for graph fields

lightrag/utils.py

@@ -1874,6 +1874,7 @@ async def process_chunks_unified(
     # 2. Filter by minimum rerank score if reranking is enabled
     if query_param.enable_rerank and unique_chunks:
         min_rerank_score = global_config.get("min_rerank_score", 0.5)
+        if min_rerank_score > 0.0:
             original_count = len(unique_chunks)
 
             # Filter chunks with score below threshold