Lindorm vdb (#11574)

Co-authored-by: jiangzhijie <jiangzhijie.jzj@alibaba-inc.com>

api/configs/middleware/vdb/lindorm_config.py

@@ -21,3 +21,14 @@ class LindormConfig(BaseSettings):
         description="Lindorm password",
         default=None,
     )
+    DEFAULT_INDEX_TYPE: Optional[str] = Field(
+        description="Lindorm Vector Index Type, hnsw or flat is available in dify",
+        default="hnsw",
+    )
+    DEFAULT_DISTANCE_TYPE: Optional[str] = Field(
+        description="Vector Distance Type, support l2, cosinesimil, innerproduct", default="l2"
+    )
+    USING_UGC_INDEX: Optional[bool] = Field(
+        description="Using UGC index will store the same type of Index in a single index but can retrieve separately.",
+        default=False,
+    )