Table.DuplicateColumn

复制具有指定名称的列。从源列复制值和类型。

Syntax

Table.DuplicateColumn(
    table as table,
    columnName as text,
    newColumnName as text,
    optional columnType as type
) as table

将名为 columnName 的列复制到表 table。列 newColumnName 的值和类型从列 columnName 复制。

将列 "a" 复制到表 ({[a = 1, b = 2], [a = 3, b = 4]}) 中名为 "copied column" 的列。

Table.DuplicateColumn(
    Table.FromRecords({
        [a = 1, b = 2],
        [a = 3, b = 4]
    }),
    "a",
    "copied column"
)

Result:

Table.FromRecords({
    [a = 1, b = 2, #"copied column" = 1],
    [a = 3, b = 4, #"copied column" = 3]
})