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From GitBox <...@apache.org>
Subject [GitHub] kbl commented on a change in pull request #3043: AIRFLOW-2107 add time_partitioning to run_query on BigQueryBaseCursor
Date Tue, 25 Sep 2018 14:51:06 GMT
kbl commented on a change in pull request #3043:  AIRFLOW-2107 add time_partitioning to run_query
on BigQueryBaseCursor
URL: https://github.com/apache/incubator-airflow/pull/3043#discussion_r220225343
 
 

 ##########
 File path: airflow/contrib/hooks/bigquery_hook.py
 ##########
 @@ -1485,3 +1490,17 @@ def var_print(var_name):
         project_id = default_project_id
 
     return project_id, dataset_id, table_id
+
+
+def _cleanse_time_partitioning(destination_dataset_table, time_partitioning_in):
+    # if it is a partitioned table ($ is in the table name) add partition load option
+    time_partitioning_out = {}
+    if destination_dataset_table and '$' in destination_dataset_table:
+        assert not time_partitioning_in.get('field'), (
 
 Review comment:
   Why this assertion was placed there? When there is a table that is partitioned by custom
column and I'd like to load results of some query to it it fails with one of two reasons:
   
   1. when destination_dataset_table=table$partition is specified and time_partitioning is
specified it fails on this assertion
   2. when destination_dataset_table=table$partition is specified and time_partitioning is
missing it fails with "'Incompatible table partitioning specification. Expects partitioning
specification interval(type:day,field:time), but input partitioning specification is interval(type:day)'"

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