add workflow_permanent_id unique constraint and index to workflows table (#309)

alembic/versions/2024_05_14_0245-baec12642d77_add_workflow_permanent_id_constraint_.py

@@ -0,0 +1,40 @@
+"""Add workflow_permanent_id constraint and index to workflows table
+
+Revision ID: baec12642d77
+Revises: bf561125112f
+Create Date: 2024-05-14 02:45:11.284376+00:00
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "baec12642d77"
+down_revision: Union[str, None] = "bf561125112f"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column("workflows", "workflow_permanent_id", existing_type=sa.VARCHAR(), nullable=False)
+    op.alter_column("workflows", "version", existing_type=sa.INTEGER(), nullable=False)
+    op.create_index(op.f("ix_workflows_workflow_permanent_id"), "workflows", ["workflow_permanent_id"], unique=False)
+    op.create_index("permanent_id_version_idx", "workflows", ["workflow_permanent_id", "version"], unique=False)
+    op.create_unique_constraint(
+        "uc_org_permanent_id_version", "workflows", ["organization_id", "workflow_permanent_id", "version"]
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint("uc_org_permanent_id_version", "workflows", type_="unique")
+    op.drop_index("permanent_id_version_idx", table_name="workflows")
+    op.drop_index(op.f("ix_workflows_workflow_permanent_id"), table_name="workflows")
+    op.alter_column("workflows", "version", existing_type=sa.INTEGER(), nullable=True)
+    op.alter_column("workflows", "workflow_permanent_id", existing_type=sa.VARCHAR(), nullable=True)
+    # ### end Alembic commands ###