"""run_artifact.filename

The row is keyed by the message the bytes left on, and that was also the only
name it could answer with. A reference rebuilt from it was then the same bytes
under a different name from the one the producing node gave them.

Revision ID: e5b8c2f4a913
Revises: a4d9e2b71c68
Create Date: 2026-08-26

"""

import sqlalchemy as sa
import sqlmodel.sql.sqltypes
from alembic import op

# revision identifiers, used by Alembic.
revision = "e5b8c2f4a913"
down_revision = "a4d9e2b71c68"
branch_labels = None
depends_on = None


def upgrade():
    # Nullable: the rows already here never recorded one, and the message name
    # is what they keep answering with.
    op.add_column(
        "run_artifact",
        sa.Column(
            "filename",
            sqlmodel.sql.sqltypes.AutoString(length=255),
            nullable=True,
        ),
    )


def downgrade():
    op.drop_column("run_artifact", "filename")