Build query from input values when batching with fields

Author: aIbrahiim

sdks/python/apache_beam/transforms/enrichment_handlers/bigquery.py

@@ -188,7 +188,7 @@ def __call__(self, request: Union[beam.Row, list[beam.Row]], *args, **kwargs):
       responses = []
       requests_map: dict[Any, Any] = {}
       batch_size = len(request)
-      if batch_size > 1 and self.fields and len(self.fields) > 0:
+      if self.fields and len(self.fields) > 0:
         unique_values = set()
         field_name = self.fields[0]
         for req in request: