form from/to areas of single lines works very slow

[pinarello]

Hello,


actually I just wanted to find out how to create intervals from a list of single values with Power Query.


For example, a sales representative can easily see which postal code areas he is responsible for.


As an exercise object I found a list containing the postal codes of counties and cities in Germany. In this case, it is not important whether the list is complete, since it is only an exercise.


In the first version I am I am in such a way vorgegengen, as I would have realized it also with Excel formulas. I also came to a useful result, but with catastrophic response times.


I suspected that this could be due to the fact that I use both backward and forward indexing in the query and also address several fields using indexing.


So I changed the query so that now only a backward indexing is necessary and to avoid the multiple use, I concatenated the relevant fields. I also deleted all necessary auxiliary columns as fast as possible.


But no matter what I do, the query always calculates forever. In the total list it's about forming the intervals from about 8200 lines, but even if I only run the query for 105 lines and 19 from7to ranges are formed, it takes about 12 seconds on my PC. My company laptop even needs about 20 seconds.


Maybe someone has an idea what could be the cause and how the problem of the long runtime can be solved.


See here the code and examples of input

[TABLE="width: 1093"]
<colgroup><col></colgroup><tbody>[TR]
[TD]let[/TD]
[/TR]
[TR]
[TD] Source = Excel.CurrentWorkbook(){[Name="Tabelle3"]}[Content],[/TD]
[/TR]
[TR]
[TD] Userdefined_Col = Table.AddColumn(Quelle, "County/City - Type", each [#"County / City"] & "@" & [Type]),[/TD]
[/TR]
[TR]
[TD] Removed_col = Table.RemoveColumns(Userdefined_Col,{"County / City", "Type"}),[/TD]
[/TR]
[TR]
[TD] sorted_lines = Table.Sort(Removed_col,{{"zip", Order.Ascending}, {"County/City - Type", Order.Ascending}}),[/TD]
[/TR]
[TR]
[TD] Index_Col = Table.AddIndexColumn(sorted_lines, "Index", 0, 1),[/TD]
[/TR]
[TR]
[TD] userdefined_col = Table.AddColumn(Index_Col, "from", each if [Index] = 0 [/TD]
[/TR]
[TR]
[TD] or [#"County/City - Type"] <> Index_Col[#"County/City - Type"]{[Index]-1} [/TD]
[/TR]
[TR]
[TD] then [zip][/TD]
[/TR]
[TR]
[TD] else null),[/TD]
[/TR]
[TR]
[TD][/TD]
[/TR]
[TR]
[TD] fill_down = Table.FillDown(userdefined_col,{"from"}),[/TD]
[/TR]
[TR]
[TD] Removed_col2 = Table.RemoveColumns(fill_down,{"Index"}),[/TD]
[/TR]
[TR]
[TD] sorted_lines2 = Table.Sort(Removed_col2,{{"zip", Order.Descending}, {"County/City - Type", Order.Descending}}),[/TD]
[/TR]
[TR]
[TD] Index_Col2 = Table.AddIndexColumn(sorted_lines2, "Index", 0, 1),[/TD]
[/TR]
[TR]
[TD][/TD]
[/TR]
[TR]
[TD] Userdefined_col2 = Table.AddColumn(Index_Col2, "to", each if [Index] = 0[/TD]
[/TR]
[TR]
[TD] or Index_Col2[#"from"]{[Index]-1} <> [#"from"] [/TD]
[/TR]
[TR]
[TD] then [zip] [/TD]
[/TR]
[TR]
[TD] else null),[/TD]
[/TR]
[TR]
[TD][/TD]
[/TR]
[TR]
[TD] filtered_lines = Table.SelectRows(Userdefined_col2, each ([#"to"] <> null)),[/TD]
[/TR]
[TR]
[TD] Removed_col3 = Table.RemoveColumns(filtered_lines,{"Index", "zip"}),[/TD]
[/TR]
[TR]
[TD] Changed_type = Table.TransformColumnTypes(Removed_col3,{{"from", type text}, {"to", type text}}),[/TD]
[/TR]
[TR]
[TD] Userdefined_col3 = Table.AddColumn(Changed_type,[/TD]
[/TR]
[TR]
[TD] "from_2", each "0" & [#"from"]),[/TD]
[/TR]
[TR]
[TD] Userdefined_col4 = Table.AddColumn(Userdefined_col3, "to_2", each "0" & [#"to"]),[/TD]
[/TR]
[TR]
[TD] Changed_type2 = Table.TransformColumnTypes(Userdefined_col4,{{"from_2", type text}, {"to_2", type text}}),[/TD]
[/TR]
[TR]
[TD] Split_col_by_pos = Table.SplitColumn(Changed_type2, "from_2", Splitter.SplitTextByPositions({0, 5}, true), {"del_1", "zip-from"}),[/TD]
[/TR]
[TR]
[TD] Split_col_by_pos2 = Table.SplitColumn(Split_col_by_pos, "to_2", Splitter.SplitTextByPositions({0, 5}, true), {"del_2", "zip-to"}),[/TD]
[/TR]
[TR]
[TD] Removed_col4 = Table.RemoveColumns(Split_col_by_pos2,{"from", "to", "del_1", "del_2"}),[/TD]
[/TR]
[TR]
[TD] Split_col_by_sign = Table.SplitColumn(Removed_col4, "County/City - Type", Splitter.SplitTextByDelimiter("@", QuoteStyle.Csv), {"County/City", "Type"}),[/TD]
[/TR]
[TR]
[TD] sorted_lines3 = Table.Sort(Split_col_by_sign,{{"Federal state", Order.Ascending}, {"County/City", Order.Ascending}, {"Type", Order.Ascending}, {"zip-from", Order.Ascending}})[/TD]
[/TR]
[TR]
[TD]in[/TD]
[/TR]
[TR]
[TD] sorted_lines3


[TABLE="width: 471"]
<colgroup><col><col><col><col></colgroup><tbody>[TR]
[TD]zip[/TD]
[TD]Federal state[/TD]
[TD]County / City[/TD]
[TD]Type[/TD]
[/TR]
[TR]
[TD="align: right"]4880[/TD]
[TD]Sachsen[/TD]
[TD]Nordsachsen[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4886[/TD]
[TD]Sachsen[/TD]
[TD]Nordsachsen[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4889[/TD]
[TD]Sachsen[/TD]
[TD]Nordsachsen[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4895[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4910[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4916[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4924[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4928[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4931[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4932[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4934[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4936[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]4938[/TD]
[TD]Brandenburg[/TD]
[TD]Elbe-Elster[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6108[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6110[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6112[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6114[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6116[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6118[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6120[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6122[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6124[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6126[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6128[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6130[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6132[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Halle Saale[/TD]
[TD]Town[/TD]
[/TR]
[TR]
[TD="align: right"]6179[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6184[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6188[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6193[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6198[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6217[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6231[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6237[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6242[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6246[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6249[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6255[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6258[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6259[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6268[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6279[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6295[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6308[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6311[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6313[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6317[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6333[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6343[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6347[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6366[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Anhalt-Bitterfeld[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6369[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Anhalt-Bitterfeld[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6385[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Anhalt-Bitterfeld[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6386[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Anhalt-Bitterfeld[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6388[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Anhalt-Bitterfeld[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6406[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Salzlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6408[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Salzlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6420[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Saalekreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6425[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Salzlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6429[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Salzlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6449[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Salzlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6456[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6458[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Harz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6463[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Harz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6464[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6466[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6467[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6469[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6484[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Harz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6485[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Harz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6493[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Harz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6502[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Harz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6526[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6528[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6536[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6537[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6542[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6543[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Mansfeld-Südharz[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6556[/TD]
[TD]Thüringen[/TD]
[TD]Kyffhäuserkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6567[/TD]
[TD]Thüringen[/TD]
[TD]Kyffhäuserkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6571[/TD]
[TD]Thüringen[/TD]
[TD]Kyffhäuserkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6577[/TD]
[TD]Thüringen[/TD]
[TD]Kyffhäuserkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6578[/TD]
[TD]Thüringen[/TD]
[TD]Kyffhäuserkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6618[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6628[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6632[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6636[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6638[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6642[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6647[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6648[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6667[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6679[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6682[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6686[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6688[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6711[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6712[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6721[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6722[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6729[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Burgenlandkreis[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6749[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Anhalt-Bitterfeld[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6766[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Anhalt-Bitterfeld[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6772[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Wittenberg[/TD]
[TD]County[/TD]
[/TR]
[TR]
[TD="align: right"]6773[/TD]
[TD]Sachsen-Anhalt[/TD]
[TD]Anhalt-Bitterfeld[/TD]
[TD]County[/TD]
[/TR]
</tbody>[/TABLE]




[/TD]
[/TR]
</tbody>[/TABLE]






Translated from German to English with www.DeepL.com

 

[citizenbh]

My Code:

let
   Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    #"Sorted Rows" = Table.Sort(Source,{{"zip", Order.Ascending}}),
    #"Added Index" = Table.AddIndexColumn(#"Sorted Rows", "Index", 0, 1),
    #"Grouped Rows" = Table.Group(#"Added Index", {"County/City"}, {{"CountCC", each _, type table [zip=number, Federal state=text, #"County/City"=text, Type=text, Index=number]}}),
    #"Added Index1" = Table.AddIndexColumn(#"Grouped Rows", "Index", 0, 1),
    #"Expanded CountCC" = Table.ExpandTableColumn(#"Added Index1", "CountCC", {"zip", "Federal state", "County/City", "Type", "Index"}, {"zip", "Federal state", "County/City.1", "Type", "Index.1"}),
    #"Removed Columns" = Table.RemoveColumns(#"Expanded CountCC",{"County/City.1"}),
    Reord_Col = Table.ReorderColumns(#"Removed Columns",{"zip", "Federal state", "County/City", "Type", "Index.1", "Index"}),
    #"Sorted Rows1" = Table.Sort(Reord_Col,{{"zip", Order.Ascending}}),
    Add_From = Table.AddColumn(#"Sorted Rows1", "From", each if [Index.1]=0 or [Index] <> #"Sorted Rows1"[Index]{[Index.1]-1} then [zip] else null),
    Filled_Down = Table.FillDown(Add_From,{"From"}),
    #"Grouped Rows1" = Table.Group(Filled_Down, {"From"}, {{"AllColumns", each _, type table [zip=number, Federal state=text, #"County/City"=text, Type=text, Index.1=number, Index=number, From=number]}, {"To", each List.Max([zip]), type number}}),
    #"Expanded AllColumns" = Table.ExpandTableColumn(#"Grouped Rows1", "AllColumns", {"zip", "Federal state", "County/City", "Type", "Index.1", "Index", "From"}, {"zip", "Federal state", "County/City", "Type", "Index.1", "Index", "From.1"}),
    #"Reordered Columns" = Table.ReorderColumns(#"Expanded AllColumns",{"zip", "Federal state", "County/City", "Type", "Index.1", "Index", "From.1", "From", "To"}),
    #"Removed Columns1" = Table.RemoveColumns(#"Reordered Columns",{"Index.1", "Index", "From.1", "zip"}),
    #"Removed Duplicates" = Table.Distinct(#"Removed Columns1", {"From", "To"})
in
    #"Removed Duplicates"

 

[pinarello]

Hi citizenbh,


this is a very interesting solution, which is also much faster than mine. But when I applied your solution to the entire input (8200 lines), it took almost 15 minutes to get the result

 

[citizenbh]

I think this is the Right Solution:

let
   Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    #"Sorted Rows" = Table.Sort(Source,{{"zip", Order.Ascending}}),
    #"Grouped Rows" = Table.Group(#"Sorted Rows", {"County/City"}, {{"help1", each _, type table [zip=number, Federal state=text, #"County/City"=text, Type=text]}, {"From", each List.Min([zip]), type number}, {"To", each List.Max([zip]), type number}}),
    #"Expanded help1" = Table.ExpandTableColumn(#"Grouped Rows", "help1", {"zip", "Federal state", "County/City", "Type"}, {"zip", "Federal state", "County/City.1", "Type"}),
    #"Sorted Rows1" = Table.Sort(#"Expanded help1",{{"zip", Order.Ascending}}),
    #"Removed Duplicates" = Table.Distinct(#"Sorted Rows1", {"From", "To"}),
    #"Removed Columns" = Table.RemoveColumns(#"Removed Duplicates",{"zip", "County/City.1"}),
    #"Reordered Columns" = Table.ReorderColumns(#"Removed Columns",{"Federal state", "County/City", "Type", "From", "To"})
in
    #"Reordered Columns"

1. Enable in Query Options Fast Data Load On
2. You can still view Query Dependencies in View Tab

 

[pinarello]

This new solution looks very good. I will test it with all the lines when I get back home.

 

[citizenbh]

I saw the error in the last code. There are overlapping numbers. The same County / City are in different groups of numbers!

FINAL:

let
   Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    #"Sorted Rows" = Table.Sort(Source,{{"zip", Order.Ascending}}),
    #"Added Index" = Table.AddIndexColumn(#"Sorted Rows", "Index", 0, 1),
    Custom_index = Table.AddColumn(#"Added Index", "custom column", each if [Index] = 0 then 1 else if #"Added Index"{[Index]-1}[#"County/City"] = #"Added Index"{[Index]}[#"County/City"] then 0 else 1),
    #"Removed Columns" = Table.RemoveColumns(Custom_index,{"Index"}),
    #"Grouped Rows" = Table.Group(#"Removed Columns", {"County/City"}, {{"Help", each _, type table [zip=number, Federal state=text, #"County/City"=text, Type=text, custom column=number]}, {"From", each List.Min([zip]), type number}, {"To", each List.Max([zip]), type number}}),
    #"Expanded Help" = Table.ExpandTableColumn(#"Grouped Rows", "Help", {"zip", "Federal state", "County/City", "Type", "custom column"}, {"zip", "Federal state", "County/City.1", "Type", "custom column"}),
    #"Filtered Rows" = Table.SelectRows(#"Expanded Help", each ([custom column] = 1)),
    #"Removed Columns1" = Table.RemoveColumns(#"Filtered Rows",{"zip", "County/City.1", "custom column"}),
    #"Reordered Columns" = Table.ReorderColumns(#"Removed Columns1",{"Federal state", "County/City", "Type", "From", "To"})
in
    #"Reordered Columns"

 

[sandy666]

I'd add

#"Removed Duplicates" = Table.Distinct(#"Reordered Columns")

on the end

 

[sandy666]

or a bit shorter:

[SIZE=1]let
   Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    Group = Table.Group(Source, {"County / City"}, {{"Help", each _, type table}, {"From", each List.Min([zip]), type number}, {"To", each List.Max([zip]), type number}}),
    ListFederalState = Table.AddColumn(Group, "Federal state", each List.Distinct(Table.Column([Help],"Federal state"))),
    ListType = Table.AddColumn(ListFederalState, "Type", each List.Distinct(Table.Column([Help],"Type"))),
    ExpandFederalState = Table.ExpandListColumn(ListType, "Federal state"),
    ExpandType = Table.ExpandListColumn(ExpandFederalState, "Type"),
    ROC = Table.SelectColumns(ExpandType,{"Federal state", "County / City", "Type", "From", "To"})
in
    ROC[/SIZE]

 

[pinarello]

Hello sandy666 and citizenbh,


I have now tested all the codes and seen some interesting solutions. But unfortunately none of them gives the right result. Therefore here is a small example and the expected result:


60000 Town A
60010 Town A
60200 Town B
60210 Town B
60500 Town A
60600 Town B


Expected result
Town A 60000 - 60010
Town A 60500 - 60500
Town B 60200 - 60210
Town B 60600 - 60600


But the result of your solutions is:
Town A 60000 - 60500
Town B 60200 - 60600


I have also loaded a folder on OneDrive that contains all the solutions.


And as already mentioned, my solutions determine the correct ranges, but Power Query is probably very slow when comparing values of different rows in queries using INDEX. This seems to be a general weakness of Power Query at the moment.


This may be due to the fact that this great tool has been around for several years, but most Excel users don't use it yet. One or the other vulnerability has not yet been detected.


When I tell colleagues about Power Query, most people have never heard of it, even though my employer is a global company with almost 300,000 employees.


Even though at the moment there may not be a way to solve the problem with the long runtime, I would like to thank you for the great ideas, which helped me to learn a lot again

https://1drv.ms/x/s!AjraeoAbqhhv7S_ZM2FxBFu7Ekrn

 

[sandy666]

I didn't read the first post (sorry ) I just modified and optimized M-code from above of my post.
I'll look at the file and read description(s).