"""add name column to positions — populated from T212 /equity/metadata/instruments

Revision ID: 0002
Revises: 0001
Create Date: 2026-05-15
"""
from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op


revision: str = "0002"
down_revision: Union[str, None] = "0001"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column("positions", sa.Column("name", sa.String(128), nullable=True))


def downgrade() -> None:
    op.drop_column("positions", "name")