Merge pull request dbt-labs#68 from fishtown-analytics/faster-unions

short circuit parsing for introspective macros
yu-iskw · Jun 12, 2018 · 77ba63d · 77ba63d
2 parents 69490e2 + 1793e06
commit 77ba63d
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diff --git a/macros/schema_tests/equality.sql b/macros/schema_tests/equality.sql
@@ -1,6 +1,10 @@
 {% macro test_equality(model, arg) %}
 
 
+{#-- Prevent querying of db in parsing mode. This works because this macro does not create any new refs. #}
+{%- if not execute -%}
+    {{ return('') }}
+{% endif %}
 
 -- setup
 

diff --git a/macros/sql/star.sql b/macros/sql/star.sql
@@ -1,5 +1,10 @@
 {% macro star(from, except=[]) -%}
 
+    {#-- Prevent querying of db in parsing mode. This works because this macro does not create any new refs. #}
+    {%- if not execute -%}
+        {{ return('') }}
+    {% endif %}
+
     {%- if from.name -%}
         {%- set schema_name, table_name = from.schema, from.name -%}
     {%- else -%}

diff --git a/macros/sql/union.sql b/macros/sql/union.sql
@@ -1,5 +1,10 @@
 {% macro union_tables(tables, column_override=none, exclude=none) -%}
 
+    {#-- Prevent querying of db in parsing mode. This works because this macro does not create any new refs. #}
+    {%- if not execute -%}
+        {{ return('') }}
+    {% endif %}
+
     {%- set exclude = exclude if exclude is not none else [] %}
     {%- set column_override = column_override if column_override is not none else {} %}