mik-laj commented on a change in pull request #9590:
URL: https://github.com/apache/airflow/pull/9590#discussion_r462182740
##########
File path: airflow/providers/google/cloud/operators/bigquery.py
##########
@@ -1692,32 +1693,48 @@ def prepare_template(self) -> None:
with open(self.configuration, 'r') as file:
self.configuration = json.loads(file.read())
+ def _submit_job(self, hook: BigQueryHook, job_id: str):
+ # Submit a new job
+ job = hook.insert_job(
+ configuration=self.configuration,
+ project_id=self.project_id,
+ location=self.location,
+ job_id=job_id,
+ )
+ # Start the job and wait for it to complete and get the result.
+ job.result()
+ return job
+
def execute(self, context: Any):
hook = BigQueryHook(
gcp_conn_id=self.gcp_conn_id,
delegate_to=self.delegate_to,
)
- job_id = self.job_id or f"airflow_{self.task_id}_{int(time())}"
+ exec_date = re.sub("\:|\-|\+", "_",
context['execution_date'].isoformat())
+ job_id = self.job_id or
f"airflow_{self.dag_id}_{self.task_id}_{exec_date}_"
+
try:
- job = hook.insert_job(
- configuration=self.configuration,
- project_id=self.project_id,
- location=self.location,
- job_id=job_id,
- )
- # Start the job and wait for it to complete and get the result.
- job.result()
+ # Submit a new job
+ job = self._submit_job(hook, job_id)
except Conflict:
+ # If the job already exists retrieve it
Review comment:
I think we will not be able to create universal behavior that will keep
idempodentency. Some users want to always execute SQL query, others want to use
predetermined results, and others want to re-query only when it is backfill.
All the cases sound correct and they cannot always be combined into a single
operator.
##########
File path: airflow/providers/google/cloud/operators/bigquery.py
##########
@@ -1692,32 +1693,48 @@ def prepare_template(self) -> None:
with open(self.configuration, 'r') as file:
self.configuration = json.loads(file.read())
+ def _submit_job(self, hook: BigQueryHook, job_id: str):
+ # Submit a new job
+ job = hook.insert_job(
+ configuration=self.configuration,
+ project_id=self.project_id,
+ location=self.location,
+ job_id=job_id,
+ )
+ # Start the job and wait for it to complete and get the result.
+ job.result()
+ return job
+
def execute(self, context: Any):
hook = BigQueryHook(
gcp_conn_id=self.gcp_conn_id,
delegate_to=self.delegate_to,
)
- job_id = self.job_id or f"airflow_{self.task_id}_{int(time())}"
+ exec_date = re.sub("\:|\-|\+", "_",
context['execution_date'].isoformat())
+ job_id = self.job_id or
f"airflow_{self.dag_id}_{self.task_id}_{exec_date}_"
+
try:
- job = hook.insert_job(
- configuration=self.configuration,
- project_id=self.project_id,
- location=self.location,
- job_id=job_id,
- )
- # Start the job and wait for it to complete and get the result.
- job.result()
+ # Submit a new job
+ job = self._submit_job(hook, job_id)
except Conflict:
+ # If the job already exists retrieve it
Review comment:
I think we will not be able to create universal behavior that will keep
idempotency. Some users want to always execute SQL query, others want to use
predetermined results, and others want to re-query only when it is backfill.
All the cases sound correct and they cannot always be combined into a single
operator without additional parameters.
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