> ## Documentation Index
> Fetch the complete documentation index at: https://clickhouse.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# mutations_execute_* 会话设置

> ClickHouse 在 mutations_execute_* 自动生成分组中的会话设置。

export const SettingsInfoBlock = ({type, default_value, changeable_without_restart}) => {
  return <div className="not-prose" style={{
    display: "flex",
    flexWrap: "wrap",
    alignItems: "baseline",
    columnGap: "0.5rem",
    rowGap: "0.125rem",
    margin: "0.375rem 0",
    fontSize: "0.8125rem",
    lineHeight: "1.125rem"
  }}>
      <div style={{
    fontWeight: 600,
    opacity: 0.72
  }}>类型</div>
      <div style={{
    overflowWrap: "anywhere"
  }}>{type}</div>
      <div style={{
    fontWeight: 600,
    opacity: 0.72,
    marginInlineStart: "0.5rem"
  }}>默认值</div>
      <div style={{
    overflowWrap: "anywhere"
  }}>{default_value}</div>
      {changeable_without_restart && <div style={{
    fontWeight: 600,
    opacity: 0.72,
    marginInlineStart: "0.5rem"
  }}>
          无需重启即可更改
        </div>}
      {changeable_without_restart && <div style={{
    overflowWrap: "anywhere"
  }}>
          {changeable_without_restart}
        </div>}
    </div>;
};

这些设置可在 [system.settings](/docs/zh/reference/system-tables/settings) 中查看，并根据 [源代码](https://github.com/ClickHouse/ClickHouse/blob/master/src/Core/Settings.cpp) 自动生成。

<div id="mutations_execute_nondeterministic_on_initiator">
  ## mutations\_execute\_nondeterministic\_on\_initiator
</div>

<SettingsInfoBlock type="Bool" default_value="0" />

如果为 true，则会在发起节点上执行常量非确定性函数 (例如 `now()`) ，并在 `UPDATE` 和 `DELETE` 查询中将其替换为字面量。这有助于在使用常量非确定性函数执行变更时，保持各副本上的数据同步。默认值：`false`。

<div id="mutations_execute_subqueries_on_initiator">
  ## mutations\_execute\_subqueries\_on\_initiator
</div>

<SettingsInfoBlock type="Bool" default_value="0" />

如果为 true，则会在发起节点上执行标量子查询，并在 `UPDATE` 和 `DELETE` 查询中将其替换为字面量。默认值：`false`。