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count(*) count(1)哪个更快？

count(*) count(1)哪个更快？

团队 code review 时，一位同事把 count(*...

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dongchengxiang {dede:channel2 row='1'}
{/dede:channel2} {dede:channel2 type='son'} ludingxian_It Fool - 董冬懂冻(itfool.cn) {/dede:channel2} {dede:channel2 row='1'}
{/dede:channel2}
wutongzhen {dede:channel2 row='1'}
{/dede:channel2} {dede:channel2 type='son'} ludingxian_It Fool - 董冬懂冻(itfool.cn) {/dede:channel2} {dede:channel2 row='1'}
{/dede:channel2}
wuxishi {dede:channel2 row='1'}
{/dede:channel2} {dede:channel2 type='son'} ludingxian_It Fool - 董冬懂冻(itfool.cn) {/dede:channel2} {dede:channel2 row='1'}
{/dede:channel2}
dahuangzhen {dede:channel2 row='1'}
{/dede:channel2} {dede:channel2 type='son'} ludingxian_It Fool - 董冬懂冻(itfool.cn) {/dede:channel2} {dede:channel2 row='1'}
{/dede:channel2}
yuanchongxiang {dede:channel2 row='1'}
{/dede:channel2} {dede:channel2 type='son'} ludingxian_It Fool - 董冬懂冻(itfool.cn) {/dede:channel2} {dede:channel2 row='1'}
{/dede:channel2}
shihaizhen {dede:channel2 row='1'}
{/dede:channel2} {dede:channel2 type='son'} ludingxian_It Fool - 董冬懂冻(itfool.cn) {/dede:channel2} {dede:channel2 row='1'}
{/dede:channel2}