render hooks; do not try to run empty hook statements

dbt-labs · Sep 3, 2019 · 7b7c13f · 7b7c13f
1 parent ec5a19c
commit 7b7c13f
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/core/dbt/include/global_project/macros/materializations/helpers.sql b/core/dbt/include/global_project/macros/materializations/helpers.sql
@@ -5,9 +5,12 @@
         commit;
       {% endcall %}
     {% endif %}
-    {% call statement(auto_begin=inside_transaction) %}
-      {{ hook.get('sql') }}
-    {% endcall %}
+    {% set rendered = render(hook.get('sql')) | trim %}
+    {% if (rendered | length) > 0 %}
+      {% call statement(auto_begin=inside_transaction) %}
+        {{ render(hook.get('sql')) }}
+      {% endcall %}
+    {% endif %}
   {% endfor %}
 {% endmacro %}