MySQL support

[sinisaos]

Related to this discussion. Any help and feedback is welcome.

[dantownsend]

I've got the tests running locally now. It's impressive that they're running.

I've tried the playground too, and it seems to work well. I do get things like this printed out in the console:

aiomysql/cursors.py:239: Warning: Unknown table 'piccolo_playground.band'

Do you see them too?

[sinisaos]

I've got the tests running locally now. It's impressive that they're running.

I've tried the playground too, and it seems to work well. I do get things like this printed out in the console:

aiomysql/cursors.py:239: Warning: Unknown table 'piccolo_playground.band'

Do you see them too?

Yes. This is just a warning and is harmless because I am using cursor.description to get the column name. I use something like this

async with self.pool.acquire() as connection:
    async with connection.cursor() as cursor:
        await cursor.execute(query, args)
        rows = await cursor.fetchall()
        columns = (
            [desc[0] for desc in cursor.description] # use only ticket from ticket$concert$concert$band_1 and it works
            if cursor.description
            else []
        )
        await connection.autocommit(True)
        return [dict(zip(columns, row)) for row in rows]

and it works for related columns like this ticket$concert$concert$band_1

Another option would be to use aiomysql.DictCursor like this

async with self.pool.acquire() as connection:
    async with connection.cursor(aiomysql.DictCursor) as cursor:
        await cursor.execute(query, args)
        rows = await cursor.fetchall()
        await connection.autocommit(True)
        return rows

but it doesn't work for related columns like this ticket$concert$concert$band 1. ValueError like this ValueError: No matching column found with name == ticket$concert$concert$band_1 is raised. I think we should leave this as is, maybe we can come up with something better later.