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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/09/08 11:02:23 UTC

[GitHub] [airflow] kaxil commented on a change in pull request #18084: Change XCom class methods to accept run_id argument

kaxil commented on a change in pull request #18084:
URL: https://github.com/apache/airflow/pull/18084#discussion_r704311443



##########
File path: airflow/models/xcom.py
##########
@@ -55,6 +56,17 @@ class BaseXCom(Base, LoggingMixin):
     task_id = Column(String(ID_LEN, **COLLATION_ARGS), primary_key=True)
     dag_id = Column(String(ID_LEN, **COLLATION_ARGS), primary_key=True)
 
+    # For _now_, we link this via execution_date, in 2.3 we will migrate this table to use run_id too
+    dag_run = relationship(
+        "DagRun",
+        primaryjoin="""and_(
+            BaseXCom.dag_id == foreign(DagRun.dag_id),
+            BaseXCom.execution_date == foreign(DagRun.execution_date)
+        )""",

Review comment:
       Is this passed as string for late evaluation?




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