Question about ppdf fastCopy in gen2 df

[dbeavon3]

I made a trivial change to a gen2 df, and reviewed my diffs (as every rational software developer would do).

The only thing that was unexpected was a change in the "ppdf:fastCopy".  It transitioned between "false" and "true".

I'm not sure what this is, or whether I should manually back it out.  I'm not normally one to allow my software tools to make random changes behind my back without some sort of review.

Hopefully someone recognizes this and can set my mind at ease.  It is not coming up in google searches.

[GilbertQ · Accepted solution]

Hi @dbeavon3 

When using a data flow to the have made some improvements where certain sources can use the fast copy option, which will allow for the data to be copied a lot faster than the traditional data flows. That is my assumption as to why you are seeing the fast copy equal to true.

Here are more details: Fast copy in Dataflows Gen2 - Microsoft Fabric | Microsoft Learn