{
  "name": "时间趋势分析",
  "description": "分析工单创建和关闭的时间趋势，识别高峰期和处理延迟。",
  "tags": [
    "时间趋势",
    "创建日期",
    "关闭日期",
    "高峰期"
  ],
  "preset_queries": [
    {
      "purpose": "统计每月创建的工单数量，识别高峰期。",
      "sql": "SELECT SUBSTR(创建日期_解析, 1, 7) AS 月份, COUNT(*) AS 创建工单数量 FROM tickets GROUP BY 月份 ORDER BY 月份"
    },
    {
      "purpose": "计算每月关闭的工单平均关闭时长，识别处理延迟趋势。",
      "sql": "SELECT SUBSTR(关闭日期_解析, 1, 7) AS 月份, ROUND(AVG(关闭时长_天), 2) AS 平均关闭时长 FROM tickets WHERE 关闭日期_解析 IS NOT NULL GROUP BY 月份 ORDER BY 月份"
    }
  ],
  "exploration_hints": "比较创建高峰期和关闭时长趋势，分析是否存在资源调配问题。关注特定月份的异常值，如关闭时长突然增加，结合跟踪记录查找原因。",
  "placeholders": {}
}