"""Give snapshot history a microsecond-precise ordering key.

Revision ID: 474
Revises: 473
"""
import sqlalchemy as sa
from sqlalchemy.dialects import mysql

from alembic import op

revision = "474"
down_revision = "473"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.alter_column(
        "intelligence_snapshots",
        "created_at",
        existing_type=sa.DateTime(),
        type_=mysql.DATETIME(fsp=6),
        existing_nullable=False,
        existing_server_default=sa.text("CURRENT_TIMESTAMP"),
        server_default=sa.text("CURRENT_TIMESTAMP(6)"),
    )


def downgrade() -> None:
    op.alter_column(
        "intelligence_snapshots",
        "created_at",
        existing_type=mysql.DATETIME(fsp=6),
        type_=sa.DateTime(),
        existing_nullable=False,
        existing_server_default=sa.text("CURRENT_TIMESTAMP(6)"),
        server_default=sa.text("CURRENT_TIMESTAMP"),
    )