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Adding New columns to the last file not reflecting in the Dataset

Hello, @developer 

I'm brining my data (in parquet) from the AzureStorage Datalake back from 2021. Three new columns are added to the last file recently, say on 05/05/2022. When I try to refresh the Data set, the new columns doesn't show up. Can someone help me with this please? 

Thanks in advance. 

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Thankyou so much @v-yangliu-msft . These links are so helpful. Really appriciate your response.

However, I had to try another option of removing the 6 steps generated when combining files in Power Query then on the Source step combine the files and choose one of the new files to be used as a sample file. the same sample file from when the query was originally built to know what columns to include. But still I will accept this as a solution as it did help figure something 🙂 

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