diff --git a/api/core/workflow/nodes/knowledge_retrieval/entities.py b/api/core/workflow/nodes/knowledge_retrieval/entities.py
index 6f255c5165..5f1c079691 100644
--- a/api/core/workflow/nodes/knowledge_retrieval/entities.py
+++ b/api/core/workflow/nodes/knowledge_retrieval/entities.py
@@ -103,9 +103,9 @@ class Condition(BaseModel):
     Conditon detail
     """
 
-    metadata_name: str
+    name: str
     comparison_operator: SupportedComparisonOperator
-    value: str | Sequence[str] | None = None
+    value: str | Sequence[str] | None | int | float = None
 
 
 class MetadataFilteringCondition(BaseModel):
diff --git a/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py b/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
index ddc2c5ce1d..91d68d6603 100644
--- a/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
+++ b/api/core/workflow/nodes/knowledge_retrieval/knowledge_retrieval_node.py
@@ -301,7 +301,7 @@ class KnowledgeRetrievalNode(LLMNode):
                     )
         elif node_data.metadata_filtering_mode == "manual":
             for condition in node_data.metadata_filtering_conditions.conditions:
-                metadata_name = condition.metadata_name
+                metadata_name = condition.name
                 expected_value = condition.value
                 if isinstance(expected_value, str):
                     expected_value = self.graph_runtime_state.variable_pool.convert_template(expected_value).text
@@ -380,7 +380,7 @@ class KnowledgeRetrievalNode(LLMNode):
             return []
         return automatic_metadata_filters
 
-    def _process_metadata_filter_func(*, condition: str, metadata_name: str, value: str, query):
+    def _process_metadata_filter_func(self, condition: str, metadata_name: str, value: str, query):
         match condition:
             case "contains":
                 query = query.filter(Document.doc_metadata[metadata_name].like(f"%{value}%"))