merge partial text rows on condition

[PowerBI_Consult]

Hi,

In the example below, I want to append/merge a certain part of the text of a row when they have the same first two letters. 

How can I best do this in powerquery?

Hereby an example below:

Any help/feedback is highly appreciated.

[PowerBI_Consult]

Worked like a charm,  thank you!

I will include sample data (thank you for the link explaining how to include this).

[dufoq3]

You're welcome 🙂

[dufoq3 · Accepted solution]

Hi @PowerBI_Consult, 

for future requests provide sample data as table so we can copy/paste.

Before

After v1

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45W8gxR0FXITUxPrMrMS1XSUVKK1YlWcvUBCoakFpcYAkVCUitKFPzyFQxRpYyQpIzAUo5ROHX5BBCWwjQQLmWMJGWsFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t, Comment = _t]),
    Ad_GroupHelper = Table.AddColumn(Source, "GroupHelper", each Text.Start([Column1], 2), type text),
    GroupedRows = Table.Group(Ad_GroupHelper, {"GroupHelper"}, {{"Count", each Text.Combine([Comment], ", "), type text}})
in
    GroupedRows

After v2

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45W8gxR0FXITUxPrMrMS1XSUVKK1YlWcvUBCoakFpcYAkVCUitKFPzyFQxRpYyQpIzAUo5ROHX5BBCWwjQQLmWMJGWsFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t, Comment = _t]),
    Ad_GroupHelper = Table.AddColumn(Source, "GroupHelper", each Text.Start([Column1], 2), type text),
    GroupedRows = Table.Group(Ad_GroupHelper, {"GroupHelper"}, {{"Column1", each Text.Combine({[Column1]{0}?} & List.Skip(List.Transform([Column1], (x)=> Text.Trim(Text.AfterDelimiter(x, "-")))), ", "), type text}, {"Comment", each Text.Combine([Comment], ", "), type text}}),
    RemovedColumns = Table.RemoveColumns(GroupedRows,{"GroupHelper"})
in
    RemovedColumns

[Greg_Deckler]

@PowerBI_Consult Can you post sample data as text?