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PolinaOr's avatar
PolinaOr
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3 months ago
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DataFlow Gen 2 Error:Fast copy user error

Hi, everyone   Getting the following error when trying to load from Lake House. Other 2 tables from it are working fine. Preview on the errorred table is also fine. I don't have fast copy required ...
  • miguel's avatar
    miguel
    3 months ago

    Totally understand that there were no settings at the query level, but would you mind checking if the Fast Copy setting at the Dataflow level was enabled? 

     

    You can see this inside the Options > Dataflow > Scale tab

     

    You can turn this setting off and your Dataflow will not try to use Fast Copy unless you explicitly use the setting at the query level.

     

    Complex values like [Table] values can create some situations that would prevent Fast Copy to behave the way its intended. It also happens with how Staging that table would yield the same column but with null values as you cannot store "Table" (complex values) into a staging table.