ephraimbuddy commented on code in PR #40846:
URL: https://github.com/apache/airflow/pull/40846#discussion_r1682396100


##########
airflow/models/taskinstancehistory.py:
##########
@@ -44,8 +64,76 @@ class TaskInstanceHistory(Base):
     dag_id = Column(StringID(), nullable=False)
     run_id = Column(StringID(), nullable=False)
     map_index = Column(Integer, nullable=False, server_default=text("-1"))
-    try_number = Column(Integer, nullable=False)
-    # The rest of the columns are kept in sync with TaskInstance, added at the 
bottom of this file
+    start_date = Column(UtcDateTime)
+    end_date = Column(UtcDateTime)
+    duration = Column(Float)
+    state = Column(String(20))
+    try_number = Column(Integer, default=0)
+    max_tries = Column(Integer, server_default=text("-1"))
+    hostname = Column(String(1000))
+    unixname = Column(String(1000))
+    job_id = Column(Integer)
+    pool = Column(String(256), nullable=False)
+    pool_slots = Column(Integer, default=1, nullable=False)
+    queue = Column(String(256))
+    priority_weight = Column(Integer)
+    operator = Column(String(1000))
+    custom_operator_name = Column(String(1000))
+    queued_dttm = Column(UtcDateTime)
+    queued_by_job_id = Column(Integer)
+    pid = Column(Integer)
+    executor = Column(String(1000))
+    executor_config = Column(ExecutorConfigType(pickler=dill))
+    updated_at = Column(UtcDateTime, default=timezone.utcnow, 
onupdate=timezone.utcnow)
+    rendered_map_index = Column(String(250))
+
+    external_executor_id = Column(StringID())
+    trigger_id = Column(Integer)
+    trigger_timeout = Column(DateTime)
+    next_method = Column(String(1000))
+    next_kwargs = Column(MutableDict.as_mutable(ExtendedJSON))
+
+    _task_display_property_value = Column("task_display_name", String(2000), 
nullable=True)
+
+    dag_run = relationship(

Review Comment:
   Hi @jedcunningham, I would like to know if you are now in agreement about 
the relationships being declared in TI history with viewonly set. 



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