如何创建包含主键和分区列的雪花表？示例DDL？

CREATE TABLE my_table (
    id INT PRIMARY KEY,
    name VARCHAR(50),
    age INT,
    city VARCHAR(50),
    partition_key VARCHAR(50)
);

CREATE INDEX idx_name ON my_table (name);

CREATE TABLE my_table (
    id INT PRIMARY KEY,
    name VARCHAR(50),
    age INT,
    city VARCHAR(50),
    partition_key VARCHAR(50)
) PARTITION BY LIST (partition_key) (
    PARTITION p1 VALUES IN ('A'),
    PARTITION p2 VALUES IN ('B'),
    PARTITION p3 VALUES IN ('C')
);