Power Query; How do I reference a Power Pivot table from a Power Query query

Hi,
It's pretty awesome how you can define Extract Transform and Load processes within Power Query without having to type in a single line of code. However how do I reference a Power Pivot table from a Power Query query to avoid me repeatedly accessing
the same data source (CSV) file with a view to increasing performance?
We are aware of the reference sub menu option with Power Query. However the new query created by the "reference" option still seems to refresh data from the data source (CSV) rather than just referencing the base query. Is this understanding
correct? There does seem to be a lot of hard disk activity when re-running the new query which is based on a base query rather than a data source. So we were hoping the new query would just need to reference the base query in memory rather than rescanning
the hard disk. Is there any way to ensure that the reference query just rescans the base query in memory?
Kind Regards,
Kieran.
Kieran Patrick Wood http://www.innovativebusinessintelligence.com http://uk.linkedin.com/in/kieranpatrickwood http://kieranwood.wordpress.com/

Hi Kieran,
This sounds like something to be suggested for a future release. At the present time, Power Query will always re-run the entire Power Query query when refreshed. The Reference feature is analogous to a SQL view whereby the underlying query is always re-executed
when it's queried, or in this case refreshed. Even something like using the Power Query cache to minimise the amount of data re-read from the disk would be helpful for performance but the cache is only used for the preview data and stored locally.
It would be a good idea to suggest this feature to the Power BI team via the feedback smiley face.
Regards,
Michael Amadi
Please use the 'Mark as answer' link to mark a post that answers your question. If you find a reply helpful, please remember to vote it as helpful :)
Website: http://www.nimblelearn.com, Twitter:
@nimblelearn
Hi Michael,
Glad to hear from you about this. And thanks to Kieran for bringing a very good valid point to debate. Will be glad to see this in future release.
- please mark correct answers

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