MULTI_DISTINCT_COUNT (Lakehouse v2)

返回不同值的个数，等同于 COUNT(DISTINCT)。

Analyze 语法

func.multi_distinct_count(get_column(table, 'dept'))

Analyze 示例

func.multi_distinct_count(get_column(table, 'department'))

┌───┐
│ 5 │
└───┘

SQL 语法

MULTI_DISTINCT_COUNT(<dept>)

SQL 示例

SELECT MULTI_DISTINCT_COUNT(department) FROM employees;

┌───┐
│ 5 │
└───┘