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Syntax
Table.DuplicateColumn(table as table, columnName as text, newColumnName as text, optional columnType as nullable type) as table
About
Duplicate the column named columnName to the table table. The values and type for the column newColumnName are copied from column columnName.
Example
Duplicate the column "a" to a column named "copied column" in the table ({[a = 1, b = 2], [a = 3, b = 4]}).
Usage
Table.DuplicateColumn(
Table.FromRecords({
[a = 1, b = 2],
[a = 3, b = 4]
}),
"a",
"copied column"
)
Output
Table.FromRecords({
[a = 1, b = 2, #"copied column" = 1],
[a = 3, b = 4, #"copied column" = 3]
})