MySQL获取值在列中出现的次数？

在MySQL中，我有一个表，其中包含一轮比赛的结果。此表的结果列包含值“赢得”、“丢失”或“绘制”。我如何按竞争对手分组并获得特定值的计数？这样做的目的是能够根据赢家和输家的数量对竞争对手进行排序，并在数据库查询中计算得分

所以，我的桌子是：

+--------------+---------+--------+
| CompetitorId | MatchId | Result |
+--------------+---------+--------+
| 1            | 1       | won    |
| 2            | 1       | lost   |
| 1            | 2       | won    |
| 3            | 2       | lost   |
+--------------+---------+--------+

我试图得到的结果是：

+--------------+------+--------+
| CompetitorId | Wins | Losses |
+--------------+------+--------+
| 1            | 2    | 0      |
| 2            | 0    | 1      |
| 3            | 0    | 1      |
+--------------+------+--------+

我尝试的查询是：

SELECT CompetitorId, COUNT(result='won') AS wins, COUNT(result='lost') AS losses
FROM match_competitors
GROUP BY CompetitorId

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可以使用包含大小写的sum，当列为所需列时，其值为1，当列不为所需列时，其值为0：

SELECT CompetitorId, sum(case result
                              when 'won' then 1
                              else 0
                         end) as wins,
                         sum(case result
                              when 'lost' then 1
                              else 0
                         end) as losses
FROM match_competitors
GROUP BY CompetitorId

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非常感谢。我看到了太多可怕的选择，加入我可以总结，等等。。。非常感谢。我总是忘记案件陈述。耐心地等待接受计时器的滴答声。。。