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# avgMerge

> avgMerge 组合器使用示例

<div id="description">
  ## 描述
</div>

[`Merge`](/zh/reference/functions/aggregate-functions/combinators#-state) 组合器
可应用于 [`avg`](/zh/reference/functions/aggregate-functions/avg)
函数，通过合并部分聚合状态生成最终结果。

<div id="example-usage">
  ## 示例用法
</div>

`Merge` 组合器与 `State` 组合器密切相关。有关 `avgMerge` 和 `avgState` 的用法示例，请参阅
["avgState 示例用法"](/zh/guides/clickhouse/examples/aggregate-function-combinators/avgState#example-usage)。

<div id="see-also">
  ## 另请参见
</div>

* [`avg`](/zh/reference/functions/aggregate-functions/avg)
* [`Merge`](/zh/reference/functions/aggregate-functions/combinators#-merge)
* [`MergeState`](/zh/reference/functions/aggregate-functions/combinators#-mergestate)