{
    "1": {
        "method": "dropColumn",
        "params": [
            "forums_archive_posts",
            "archive_show_signature"
        ]
    },
    "2": {
        "method": "dropColumn",
        "params": [
            "forums_archive_posts",
            "archive_show_emoticons"
        ]
    },
    "3": {
        "method": "dropColumn",
        "params": [
            "forums_posts",
            [
                "use_sig",
                "use_emo"
            ]
        ]
    }
}