When using a Data Factory Copy Activity to take delimited text files from Blob Storage to Table Storage, I am able to specify the input and output schemas and the relevant one-to-one Column Mappings.
It is possible to concatenate or format one or more columns (with $$Text.Format perhaps?) in the source schema and map these to a single column in the destination?
If possible, this would be especially useful if I can also set the Partition Key using a similar approach (a composite key taken from 2 or more source column values or better still, the SliceStart plus a concatenated source column value).
