Table.FromPartitions

语法

Table.FromPartitions(partitionColumn as text, partitions as list, optional partitionColumnType as nullable type) as table

关于

返回一个表，该表是组合一组分区表 partitions 的结果。 partitionColumn 是要添加的列的名称。 列的类型默认为 any，但可以通过 partitionColumnType 指定。

示例 1

从列表 {number} 中查找项类型。

使用情况

Table.FromPartitions(
    "Year",
    {
        {
            1994,
            Table.FromPartitions(
                "Month",
                {
                    {
                        "Jan",
                        Table.FromPartitions(
                            "Day",
                            {
                                {1, #table({"Foo"}, {{"Bar"}})},
                                {2, #table({"Foo"}, {{"Bar"}})}
                            }
                        )
                    },
                    {
                        "Feb",
                        Table.FromPartitions(
                            "Day",
                            {
                                {3, #table({"Foo"}, {{"Bar"}})},
                                {4, #table({"Foo"}, {{"Bar"}})}
                            }
                        )
                    }
                }
            )
        }
    }
)

输出

Table.FromRecords({
    [
        Foo = "Bar",
        Day = 1,
        Month = "Jan",
        Year = 1994
    ],
    [
        Foo = "Bar",
        Day = 2,
        Month = "Jan",
        Year = 1994
    ],
    [
        Foo = "Bar",
        Day = 3,
        Month = "Feb",
        Year = 1994
    ],
    [
        Foo = "Bar",
        Day = 4,
        Month = "Feb",
        Year = 1994
    ]
})