delete row in .parquet sink - Delta

Question

Hello,
I have the upsert if working for the .parquet files by selecting the upsert if setting to true()For example when the source is update ,then the parquet sink is updated accordingly.But if a row is deleted in source it is still shown in sink parquet even when check the Allow Delete.Any suggestions?Thank you

Answer 1

Hello @arkiboys ,
Can you please share how you have implement UPSERT in paraquet , Alter row is not supported for paraquet files .
https://learn.microsoft.com/en-us/azure/data-factory/data-flow-alter-row#allow-alter-row-policies-in-sink

Allow alter row policies in sink
For the alter row policies to work, the data stream must write to a database or Cosmos sink. In the Settings tab in your sink, enable which alter row policies are allowed for that sink.

This is what you see when you select paraquet file

This is what you see when you select a database ( where Alter row is supported )

Please do let me know how it goes .
Thanks
Himanshu

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