Alteryx Designer Discussions

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Union tool doesn't remove duplicates!

7 - Meteor

Coming from a SQL background it was surprising to find out that  Alteryx Union tool doesn't remove duplicates from out put. Shouldn't we have a property in Union tool to select if output all records or output distinct records.


I know we can simply add a unique tool after union tool to get the desired output as well but just wanted to highlight  this.

12 - Quasar

How does SQL identify a duplicate if dataset 2 includes a field that does not exist in dataset 1?


8 - Asteroid

Coming from SQL world I understand your problem with Aletryx.


Unlike ANSI SQL, Alteryx does a UNION ALL and not UNION.


Once you UNION in alteryx, run a duplicate removal on all columns to get the same output as in SQL