from tortoise import BaseDBAsyncClient


async def upgrade(db: BaseDBAsyncClient) -> str:
    return """
        ALTER TABLE "rates" ALTER COLUMN "score" TYPE DOUBLE PRECISION USING "score"::DOUBLE PRECISION;"""


async def downgrade(db: BaseDBAsyncClient) -> str:
    return """
        ALTER TABLE "rates" ALTER COLUMN "score" TYPE INT USING "score"::INT;"""