Source code for aiida.backends.djsite.db.migrations.0004_add_daemon_and_uuid_indices

# -*- coding: utf-8 -*-
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# Copyright (c), The AiiDA team. All rights reserved.                     #
# This file is part of the AiiDA code.                                    #
#                                                                         #
# The code is hosted on GitHub at https://github.com/aiidateam/aiida_core #
# For further information on the license, see the LICENSE.txt file        #
# For further information please visit http://www.aiida.net               #
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from __future__ import unicode_literals

import django_extensions.db.fields
from django.db import migrations

from aiida.backends.djsite.db.migrations import update_schema_version


SCHEMA_VERSION = "1.0.4"


[docs]class Migration(migrations.Migration): dependencies = [ ('db', '0003_add_link_type'), ] operations = [ # Create the index that speeds up the daemon queries # We use the RunSQL command because Django interface # doesn't seem to support partial indexes migrations.RunSQL(""" CREATE INDEX tval_idx_for_daemon ON db_dbattribute (tval) WHERE ("db_dbattribute"."tval" IN ('COMPUTED', 'WITHSCHEDULER', 'TOSUBMIT'))"""), # Create an index on UUIDs to speed up loading of nodes # using this field migrations.AlterField( model_name='dbnode', name='uuid', field=django_extensions.db.fields.UUIDField(db_index=True, editable=False, blank=True), preserve_default=True, ), update_schema_version(SCHEMA_VERSION) ]