30 lines
877 B
Python
30 lines
877 B
Python
"""Add unique constraint on jobs.document_id + queue for ON CONFLICT support.
|
|
|
|
Revision ID: 0007
|
|
Revises: 0006
|
|
Create Date: 2026-08-16
|
|
|
|
Adds a unique constraint on (document_id, queue) to support ON CONFLICT clauses
|
|
in worker handlers that need idempotent job tracking per queue.
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
from collections.abc import Sequence
|
|
|
|
from alembic import op
|
|
|
|
# revision identifiers, used by Alembic.
|
|
revision: str = "0007"
|
|
down_revision: str | None = "0006"
|
|
branch_labels: str | Sequence[str] | None = None
|
|
depends_on: str | Sequence[str] | None = None
|
|
|
|
|
|
def upgrade() -> None:
|
|
# Add unique constraint on (document_id, queue) to support ON CONFLICT
|
|
op.create_unique_constraint("jobs_document_queue_unique", "jobs", ["document_id", "queue"])
|
|
|
|
|
|
def downgrade() -> None:
|
|
op.drop_constraint("jobs_document_queue_unique", "jobs", type_="unique")
|