ALTER MODEL MONITOR

修改 模型监控器 的属性：

  • 暂停或恢复监控器。

  • 设置监控器使用的基线表。

  • 设置监控器内动态表操作的刷新间隔。

  • 设置监控器使用的仓库。

  • Adds or removes segment columns for monitoring specific data segments.

另请参阅：

CREATE MODEL MONITOR、SHOW MODEL MONITORS、DESCRIBE MODEL MONITOR、DROP MODEL MONITOR

语法

ALTER MODEL MONITOR [ IF EXISTS ] <monitor_name> { SUSPEND | RESUME }

ALTER MODEL MONITOR [ IF EXISTS ] <monitor_name> SET
   [ BASELINE='<baseline_table_name>' ]
   [ REFRESH_INTERVAL='<refresh_interval>' ]
   [ WAREHOUSE=<warehouse_name> ]

ALTER MODEL MONITOR [ IF EXISTS ] <monitor_name> ADD segment_column = '<segment_column_name>'

ALTER MODEL MONITOR [ IF EXISTS ] <monitor_name> DROP segment_column = '<segment_column_name>'
Copy

参数

monitor_name

指定模型监控器的标识符（即名称）。

如果标识符包含空格或特殊字符，则整个字符串必须放在双引号内。放在双引号内的标识符也区分大小写。

有关更多信息，请参阅 标识符要求。

SET ...

指定要设置的一个或多个模型监控器属性。

BASELINE='<baseline_table_name>'

设置监控器使用的基线表。

WAREHOUSE = warehouse_name

设置监控器使用的仓库。

REFRESH_INTERVAL = 'refresh_interval'

The interval at which the monitor refreshes its internal state. The value must be a string representing a time period, such as '1 day'. The minimum refresh interval is '60 seconds'. Supported units include seconds, minutes, hours, and days. You may use singular ("hour") or plural ("hours") for the interval name.

ADD segment_column = '<segment_column_name>'

Adds a segment column to the monitor. The specified column must exist in the source data and be of type STRING. You can add up to 5 segment columns per monitor. Each segment column should have fewer than 25 unique values for optimal performance.

DROP segment_column = '<segment_column_name>'

Removes a segment column from the monitor.

For more information about segments, see ML 可观测性：随时间推移监控模型行为.

访问控制要求

用于执行此操作的 角色 必须至少具有以下 权限：

权限

对象

备注

Modify

模型监控器

The USAGE privilege on the parent database and schema are required to perform operations on any object in a schema. Note that a role granted any privilege on a schema allows that role to resolve the schema. For example, a role granted CREATE privilege on a schema can create objects on that schema without also having USAGE granted on that schema.

有关创建具有指定权限集的自定义角色的说明，请参阅 创建自定义角色。

有关对 安全对象 执行 SQL 操作的相应角色和权限授予的一般信息，请参阅 访问控制概述。

语言: 中文