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Add indexes to speed up tracker deletions 

Fixes https://todo.sr.ht/~sircmpwn/todo.sr.ht/266
This commit is contained in:
Drew DeVault 2022-03-21 11:52:13 +01:00
parent 1f552accae
commit e03387006e
1 changed files with 60 additions and 0 deletions
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todosrht/alembic/versions/2e5358e46632_add_more_indexes_around_tracker_ticket_.py Normal file
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"""Add more indexes around tracker/ticket/event relationships
Revision ID: 2e5358e46632
Revises: c59043a3240b
Create Date: 2022-03-21 11:06:58.633601
"""
# revision identifiers, used by Alembic.
revision = '2e5358e46632'
down_revision = 'c59043a3240b'
from alembic import op
import sqlalchemy as sa
def upgrade():
op.execute("""
CREATE INDEX ticket_tracker_id ON ticket (tracker_id);
CREATE INDEX ticket_scoped_id ON ticket (scoped_id);
CREATE INDEX ticket_dupe_of_id ON ticket (dupe_of_id);
CREATE INDEX event_ticket_id ON event (ticket_id);
CREATE INDEX event_from_ticket_id ON event (from_ticket_id);
CREATE INDEX event_label_id ON event (label_id);
CREATE INDEX event_participant_id ON event (participant_id);
CREATE INDEX event_comment_id ON event (comment_id);
CREATE INDEX event_notification_event_id ON event_notification (event_id);
CREATE INDEX ticket_comment_ticket_id ON ticket_comment (ticket_id);
CREATE INDEX ticket_comment_submitter_id ON ticket_comment (submitter_id);
CREATE INDEX ticket_comment_superceeded_by_id ON ticket_comment (superceeded_by_id);
CREATE INDEX ticket_label_ticket_id ON ticket_label (ticket_id);
CREATE INDEX ticket_assignee_ticket_id ON ticket_assignee (ticket_id);
CREATE INDEX ticket_webhook_subscription_ticket_id ON ticket_webhook_subscription (ticket_id);
""")
def downgrade():
op.execute("""
DROP INDEX ticket_tracker_id;
DROP INDEX ticket_scoped_id;
DROP INDEX ticket_dupe_of_id;
DROP INDEX event_ticket_id;
DROP INDEX event_from_ticket_id;
DROP INDEX event_label_id;
DROP INDEX event_participant_id;
DROP INDEX event_comment_id;
DROP INDEX event_notification_event_id;
DROP INDEX ticket_comment_ticket_id;
DROP INDEX ticket_comment_submitter_id;
DROP INDEX ticket_comment_superceeded_by_id;
DROP INDEX ticket_label_ticket_id;
DROP INDEX ticket_assignee_ticket_id;
DROP INDEX ticket_webhook_subscription_ticket_id;
""")