为 GCP 调用外部函数¶

本主题介绍如何调用外部函数：

1. If appropriate, grant USAGE privilege on the external function to one or more Snowflake roles so that the roles can call the external function. A role must have USAGE or OWNERSHIP privileges on that external function.

2. 像执行任何 UDF 一样调用外部函数。例如，如果创建 Snowflake 提供的示例函数：

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   select my_external_function(42, 'Life, the Universe, and Everything');

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   If you customized the function name when you created the function, then replace my_external_function with the customized name.

返回值应类似于：

[42, "Life, the Universe, and Everything"]