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sushiat

Mirrored database __rowMarker__ 0 not shown in preview

Submitted by Helper I on ‎03-06-2026 03:05 AM

After implementing custom database mirroring in our organisation here is small bit of feedback to improve the experience for others:

 

When using the preview feature of the uploaded parquet files in Fabric you get presented with the first 10 rows like this:

sushiat_0-1772794989743.png

 

And I immediately thought my code made a mistake and didn't include the __rowMarker__ data correctly. I had to download and open the parquet file locally to confirm that in fact there are 0 in all rows of that preview.

 

But Fabric only shows values other than 0 here, not good feedback if you are just getting started. Please fix 🙂

Status: New
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