获取我朋友的 Facebook 活动

Question

我的结果不合逻辑。查询以下内容时，我得到只有一个事件

SELECT name, venue, location, start_time, eid FROM event 
WHERE eid IN (
       SELECT eid FROM event_member 
       WHERE (uid IN (SELECT uid2 FROM friend WHERE uid1 = me())  OR uid = me())
   )
AND start_time > now()
AND venue.latitude  < '-22.821757'
AND venue.latitude  > '-23.056989'

结果：

{
  "data": [
    {
      "name": "Beijaço de recepção ao Papa Bento XVI", 
      "venue": {
        "street": "", 
        "city": "", 
        "state": "", 
        "country": "", 
        "latitude": -22.97444595952, 
        "longitude": -43.187243996668, 
        "id": 152289418168750
      }, 
      "location": "Praia Copacabana - Rio de Janeiro - Brasil", 
      "start_time": "2013-07-23T14:00:00", 
      "eid": 304646919571378
    }
  ]
}

但如果我删除最后一行，只设置一个纬度限制，我会得到一堆结果，包括一些肯定会显示在完整查询中的结果，例如：

{
  "name": "Wobble apresenta: RUIDO", 
  "venue": {
    "id": 245734958851552
  }, 
  "location": "00 Rio de Janeiro", 
  "start_time": "2013-02-15T22:00:00-0200", 
  "eid": 132007820298359
}, 

哪个场地有“纬度”：-22.978986942704

这是一个错误还是我做错了什么？

http://itouchmap.com/latlong.html - 如果您想使用您的帐户进行测试，请检查您的纬度

https://developers.facebook.com/tools/explorer/ - Facebook 的 Graph API 浏览器

Answer 1

您是在比较字符串而不是数字。

-22     > -23     = true
'-22'   > '-23'   = false
-22.9   < -22.8   = true
'-22.9' < '-22.8' = false