darkhelm/notifications-api
1
0
Fork 0
mirror of https://github.com/GSA/notifications-api.git synced 2025-12-09 06:32:11 -05:00
Code Issues Packages Projects Releases Wiki Activity

To avoid any table locks and contention on the production database we

Browse Source 
are going to add the unique index concurrently. This only works if we
execute a commit first.
This commit is contained in:
Rebecca Law
2021-04-23 15:08:23 +01:00
parent a637c8eb92
commit 490efad97a
1 changed files with 15 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
migrations/versions/0351_unique_key_annual_billing.py
View File

@@ -5,16 +5,28 @@ Revises: 0350_update_rates
Create Date: 2021-04-12 09:02:45.098875 Create Date: 2021-04-12 09:02:45.098875
""" """
import os
from alembic import op from alembic import op
revision = '0351_unique_key_annual_billing' revision = '0351_unique_key_annual_billing'
down_revision = '0350_update_rates' down_revision = '0350_update_rates'
environment = os.environ['NOTIFY_ENVIRONMENT']
def upgrade(): def upgrade():
op.create_unique_constraint( index = """
'uix_service_id_financial_year_start', 'annual_billing', ['service_id', 'financial_year_start'] CREATE UNIQUE INDEX CONCURRENTLY uix_service_id_financial_year_start
) ON annual_billing (service_id, financial_year_start)
"""
constraint = """
ALTER TABLE annual_BILLING add constraint uix_service_id_financial_year_start
UNIQUE USING INDEX uix_service_id_financial_year_start
"""
op.execute('COMMIT')
op.execute(index)
op.execute(constraint)
def downgrade(): def downgrade():