Table.ExpandListColumn
Syntax
Table.ExpandListColumn(table as table, column as text) as table
About
Given a table
where column
contains a list of values, splits the list into a row for each value. Values in the other columns are duplicated in each new row created. This function can also expand nested tables by treating them as lists of records.
Example 1
Split the list column [Name].
Usage
Table.ExpandListColumn(
Table.FromRecords({[Name = {"Bob", "Jim", "Paul"}, Discount = .15]}),
"Name"
)
Output
Table.FromRecords({
[Name = "Bob", Discount = 0.15],
[Name = "Jim", Discount = 0.15],
[Name = "Paul", Discount = 0.15]
})
Example 2
Split the nested table column [Components].
Usage
Table.ExpandListColumn(
#table(
{"Part", "Components"},
{
{"Tool", #table({"Name", "Quantity"}, {{"Thingamajig", 2}, {"Widget", 3}})}
}
),
"Components"
)
Output
Table.FromRecords({
[Part = "Tool", Components = [Name = "Thingamajig", Quantity = 2]],
[Part = "Tool", Components = [Name = "Widget", Quantity = 3]]
})