Skip wildcard filter expressions for vector search

Author: vishal-bala

redisvl/query/hybrid.py

@@ -273,7 +273,10 @@ def build_base_query(
     elif vector_search_method is not None:
         raise ValueError(f"Unknown vector search method: {vector_search_method}")
 
-    if filter_expression:
+    if isinstance(filter_expression, FilterExpression):
+        filter_expression = str(filter_expression)
+
+    if filter_expression and filter_expression != "*":
         vsim_filter = Filter("FILTER", str(filter_expression))
     else:
         vsim_filter = None