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I want to ingest a GCS folder full of files which all have the date in the filename like /foo_2018-08-22.txt and /foo_2018-08-23.txt. For each file I'd like to add the date of the data (from the filename) as a value in a column such that all rows which come from the first file are labelled as 2018-08-22 and so on. I know how manually to do this for individual files, but is there any way to do so for an entire file full of files? I played with "parameterized datasets" but can not figure how to pull out the value of those identified parameters into formula values.

Jake Lowen
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There is currently no automatic way of doing this for entire folder. However, there is an open feature request for it to be implemented. You can add your input on the thread and/or click on the star to receive notifications for any updates.

Atybzz
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