---
title: "Comment by Aravind Yarram on \"Fabric : Not All Delta Tables Are Created Equally\" | Hashnode"
description: "Seems like DFg2 is using single thread to write. That explains single file and the time taken. Also, I expected ~600 Mil rows, i.e. all rows in an Row Group (RG"
url: "https://hashnode.com/posts/fabric-not-all-delta-tables-are-created-equally/649a68da170c64d6eb66d7e1/comment/649b91ea3f5eb98a5001df80"
---

[Discussion](https://hashnode.com/posts/fabric-not-all-delta-tables-are-created-equally/649a68da170c64d6eb66d7e1)

Comment [Fabric : Not All Delta Tables Are Created Equally](https://hashnode.com/posts/fabric-not-all-delta-tables-are-created-equally/649a68da170c64d6eb66d7e1)

[Aravind Yarram](https://hashnode.com/@Yaravind)

[Jun 28, 2023](https://hashnode.com/posts/fabric-not-all-delta-tables-are-created-equally/649a68da170c64d6eb66d7e1/comment/649b91ea3f5eb98a5001df80)

Seems like DFg2 is using single thread to write. That explains single file and the time taken. Also, I expected ~600 Mil rows, i.e. all rows in an Row Group (RG) where there is only a single RG. Am I missing something?