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32 lines
993 B
Markdown
32 lines
993 B
Markdown
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---
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toc_priority: 105
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---
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# argMin {#agg-function-argmin}
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语法: `argMin(arg, val)` 或 `argMin(tuple(arg, val))`
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计算 `val` 最小值对应的 `arg` 值。 如果 `val` 最小值存在几个不同的 `arg` 值，输出遇到的第一个(`arg`)值。
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这个函数的Tuple版本将返回 `val` 最小值对应的tuple。本函数适合和`SimpleAggregateFunction`搭配使用。
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**示例:**
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``` text
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┌─user─────┬─salary─┐
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│ director │ 5000 │
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│ manager │ 3000 │
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│ worker │ 1000 │
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└──────────┴────────┘
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```
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``` sql
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SELECT argMin(user, salary), argMin(tuple(user, salary)) FROM salary
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```
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``` text
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┌─argMin(user, salary)─┬─argMin(tuple(user, salary))─┐
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│ worker │ ('worker',1000) │
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└──────────────────────┴─────────────────────────────┘
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```
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