From b4931fe4c5b52739234348098a6bae18f119d198 Mon Sep 17 00:00:00 2001
From: Jay Swanson <37157901+swanjson@users.noreply.github.com>
Date: Mon, 13 Jun 2022 15:40:07 -0600
Subject: [PATCH] added: conditional check to see if cols contains columns, if
 not replace with * (#561)

---
 macros/sql/star.sql | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/macros/sql/star.sql b/macros/sql/star.sql
index 25e58969..e0833275 100644
--- a/macros/sql/star.sql
+++ b/macros/sql/star.sql
@@ -11,10 +11,14 @@
         {{ return('*') }}
     {% endif %}
 
-    {%- for col in dbt_utils.get_filtered_columns_in_relation(from, except) %}
+    {% set cols = dbt_utils.get_filtered_columns_in_relation(from, except) %}
 
-        {%- if relation_alias %}{{ relation_alias }}.{% else %}{%- endif -%}{{ adapter.quote(col)|trim }} {%- if prefix!='' or suffix!='' %} as {{ adapter.quote(prefix ~ col ~ suffix)|trim }} {%- endif -%}
-        {%- if not loop.last %},{{ '\n  ' }}{% endif %}
-
-    {%- endfor -%}
+    {%- if cols|length <= 0 -%}
+      {{- return('*') -}}
+    {%- else -%}
+        {%- for col in cols %}
+            {%- if relation_alias %}{{ relation_alias }}.{% else %}{%- endif -%}{{ adapter.quote(col)|trim }} {%- if prefix!='' or suffix!='' %} as {{ adapter.quote(prefix ~ col ~ suffix)|trim }} {%- endif -%}
+            {%- if not loop.last %},{{ '\n  ' }}{% endif %}
+        {%- endfor -%}
+    {% endif %}
 {%- endmacro %}