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backend/alembic/versions/20260623_0005_certificate_import_batch_id.py

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+"""add certificate import batch id
+
+Revision ID: 20260623_0005
+Revises: 20260623_0004
+Create Date: 2026-06-23
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = "20260623_0005"
+down_revision: Union[str, None] = "20260623_0004"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column("certificates", sa.Column("import_batch_id", sa.Integer(), nullable=True))
+    op.create_index("ix_certificates_import_batch_id", "certificates", ["import_batch_id"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_certificates_import_batch_id", table_name="certificates")
+    op.drop_column("certificates", "import_batch_id")