[GitHub] ubermen closed pull request #3840: [AIRFLOW-3001] Add task_instance table index 'ti_dag_date'

[GitBox <gi...@apache.org>]

ubermen closed pull request #3840: [AIRFLOW-3001] Add task_instance table index 'ti_dag_date'
URL: https://github.com/apache/incubator-airflow/pull/3840
 
 
   

This is a PR merged from a forked repository.
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the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
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diff --git a/airflow/migrations/versions/e3a246e0dc1_current_schema.py b/airflow/migrations/versions/e3a246e0dc1_current_schema.py
index 6c63d0a9dd..22624a4c8d 100644
--- a/airflow/migrations/versions/e3a246e0dc1_current_schema.py
+++ b/airflow/migrations/versions/e3a246e0dc1_current_schema.py
@@ -7,9 +7,9 @@
 # to you under the Apache License, Version 2.0 (the
 # "License"); you may not use this file except in compliance
 # with the License.  You may obtain a copy of the License at
-# 
+#
 #   http://www.apache.org/licenses/LICENSE-2.0
-# 
+#
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
 # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@@ -176,6 +176,12 @@ def upgrade():
             ['dag_id', 'state'],
             unique=False
         )
+        op.create_index(
+            'ti_dag_date',
+            'task_instance',
+            ['dag_id', 'execution_date'],
+            unique=False
+        )
         op.create_index(
             'ti_pool',
             'task_instance',
@@ -269,6 +275,7 @@ def downgrade():
     op.drop_index('ti_state_lkp', table_name='task_instance')
     op.drop_index('ti_pool', table_name='task_instance')
     op.drop_index('ti_dag_state', table_name='task_instance')
+    op.drop_index('ti_dag_date', table_name='task_instance')
     op.drop_table('task_instance')
     op.drop_table('slot_pool')
     op.drop_table('sla_miss')
diff --git a/airflow/models.py b/airflow/models.py
index 2096785b41..c41f2a9dbe 100755
--- a/airflow/models.py
+++ b/airflow/models.py
@@ -880,6 +880,7 @@ class TaskInstance(Base, LoggingMixin):
 
     __table_args__ = (
         Index('ti_dag_state', dag_id, state),
+        Index('ti_dag_date', dag_id, execution_date),
         Index('ti_state', state),
         Index('ti_state_lkp', dag_id, task_id, execution_date, state),
         Index('ti_pool', pool, state, priority_weight),


 

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