Merge pull request #13 from fishtown-analytics/fix/bigquery-compatibility

Use dbt_utils version of dateadd instead of Redshift version

Author: clrcrl

macros/cross-adapter-modeling/sessionization/segment_web_sessions.sql

@@ -16,12 +16,13 @@
 
 {% set sessionization_cutoff = "
 (
-    select 
-        dateadd(
-            hour, 
-            -{{var('segment_sessionization_trailing_window')}}, 
-            max(session_start_tstamp)
-            ) 
+    select {{
+        dbt_utils.safe_cast(
+            dbt_utils.dateadd(
+                'hour',
+                -var('segment_sessionization_trailing_window'),
+                'max(session_start_tstamp)'),
+            'timestamp') }}
     from {{this}}
 )    
 " %}