error on empty list of relations

dbt-labs · Dec 19, 2023 · 3afd659 · 3afd659
1 parent d609da9
commit 3afd659
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/dbt/adapters/spark/impl.py b/dbt/adapters/spark/impl.py
@@ -420,6 +420,10 @@ def _get_one_catalog_by_relations(
         manifest: Manifest,
     ) -> agate.Table:
         columns: List[Dict[str, Any]] = []
+        if len(relations) == 0:
+            raise dbt.exceptions.CompilationError(
+                "Expected at least one relation in spark _get_one_catalog_by_relations, found None"
+            )
         for relation in relations:
             logger.debug(f"Getting table schema for relation {relation}")
             columns.extend(self._get_columns_for_catalog(relation))