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Hello,
I need to concatenate numeric columns in my table using Add.Column, like:
= Table.AddColumn(Custom1, "UniqueID", each (Text.From([CaseID])&Text.From([SolutionID])), Int64.Type)
I thought using the "Int64.Type" at the end of the step should format the new column as whole number automatically, however it seems that they are just recognized as text. When I then manually convert the column to "whole number" query folding doesn't happen anymore. Is there an error on my side or a workaround to ahve query folding happen even after a column data type is changed?
Solved! Go to Solution.
if I understand the language specification correctly Type.Int64 is just an extension of type number. See here:
https://docs.microsoft.com/en-us/powerquery-m/power-query-m-language-specification, (see page 46):
The M type system consists of the following kinds of types:
• Primitive types, which classify primitive values (binary, date, datetime,
datetimezone, duration, list, logical, null, number, record, text, time, type)
and also include a number of abstract types (function, table, any, and none)
I would try using 'type number' instead of Type.Int64, hopefully it works (it may be limitation of Direct Query though, which I assume you are using, since you mentioned folding).. You can then change format in DAX separately from the type
There are some changes to data types that allow and some that will break query-folding.
I actually wrote a blog post about this (valid for SQL Server 2016)
if I understand the language specification correctly Type.Int64 is just an extension of type number. See here:
https://docs.microsoft.com/en-us/powerquery-m/power-query-m-language-specification, (see page 46):
The M type system consists of the following kinds of types:
• Primitive types, which classify primitive values (binary, date, datetime,
datetimezone, duration, list, logical, null, number, record, text, time, type)
and also include a number of abstract types (function, table, any, and none)
I would try using 'type number' instead of Type.Int64, hopefully it works (it may be limitation of Direct Query though, which I assume you are using, since you mentioned folding).. You can then change format in DAX separately from the type
You've just helped my query folding go from red to blue in the dataflow window
Thanks, luckily that was an easy fix for my issue!
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