Table.AggregateTableColumn - Power Query

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Table.AggregateTableColumn

Table.AggregateTableColumn
Aggregates a column of tables into multiple columns in the containing table.
function (table as table, column as text, aggregations as list) as table
Description
Aggregates tables in table[column] into multiple columns containing aggregate values for the tables. aggregations is used to specify the columns containing the tables to aggregate, the aggregation functions to apply to the tables to generate their values, and the names of the aggregate columns to create.
Category
Table.Transformation
Examples
Aggregate table columns in [t] in the table {[t = {[a=1, b=2, c=3], [a=2,b=4,c=6]}, b = 2]} into the sum of [t.a], the min and max of [t.b], and the count of values in [t.a].
1
Table.AggregateTableColumn(Table.FromRecords({[t = Table.FromRecords({[a=1, b=2, c=3], [a=2,b=4,c=6]}), b = 2]}, type table [t = table [a=number, b=number, c=number], b = number]), "t", { {"a", List.Sum, "sum of t.a"}, {"b", List.Min, "min of t.b"}, {"b", List.Max, "max of t.b"}, {"a", List.Count, "count of t.a"} })
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Table.FromRecords({[#"sum of t.a" = 3, #"min of t.b" = 2, #"max of t.b" = 4, #"count of t.a" = 2, b = 2]})

Table.AlternateRows

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Table.AggregateTableColumn