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I was just looking through the Alteryx data type docs and couldn't find a section on Blob's Data Types | Alteryx Help. From definitions online its a 'Binary large object'. What are the advantages/limitations of using this data type?
I do not believe it does any compression. I am under the impression that is is a direct translation of the source into binary for storage in a database.
You dont have to use just pictures either. Blobs can be audio, video, or other forms of media. You can use it for other file types as well depending on your use case. I use blob input and output to move excel templates for use in gallery workflows where I need pre-formatted excel files.