fix: is_merge should be False by default

jina/drivers/search.py

@@ -49,7 +49,7 @@ class KVSearchDriver(BaseSearchDriver):
             - K is the top-k
     """
 
-    def __init__(self, is_merge: bool = True, traversal_paths: Tuple[str] = ('m'), *args, **kwargs):
+    def __init__(self, is_merge: bool = False, traversal_paths: Tuple[str] = ('m'), *args, **kwargs):
         """Construct the driver.
 
         :param is_merge: when set to true the retrieved docs are merged into current message using :meth:`MergeFrom`,

tests/integration/level_depth/yaml/index-chunk.yml

@@ -35,4 +35,5 @@ requests:
       - !KVSearchDriver
         with:
           executor: chunkidx
+          is_merge: true
           traversal_paths: ['m']

tests/integration/level_depth/yaml/index-doc.yml

@@ -15,4 +15,5 @@ requests:
       - !KVSearchDriver
         with:
           executor: docIndexer
+          is_merge: true
           traversal_paths: ['m']