{
    "summary": [
        {
            "name": "node_logs",
            "title": "节点日志收集",
            "primary": ["id"],
            "catelog": "entity"
        }
    ],
    "fields": [
        {"name": "id", "title": "日志ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "node_id", "title": "节点ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "log_source", "title": "日志来源", "type": "str", "length": 64},
        {"name": "log_level", "title": "日志级别", "type": "str", "length": 16},
        {"name": "message", "title": "日志内容", "type": "text"},
        {"name": "logged_at", "title": "日志时间", "type": "datetime", "nullable": "no"}
    ],
    "indexes": [
        {"name": "idx_nl_node", "idxtype": "index", "idxfields": ["node_id"]},
        {"name": "idx_nl_time", "idxtype": "index", "idxfields": ["logged_at"]},
        {"name": "idx_nl_level", "idxtype": "index", "idxfields": ["log_level"]}
    ],
    "codes": [
        {"field": "log_level", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='log_level'"}
    ]
}