Over Partition Clause in Magic ETL, or SQL transform

user056039
user056039
in Dataflows

I'm looking for a solution to create a new column that will either copy a shipping timestamp on all rows, if the shipping date exist on one of the rows. If the shipping date doesn't appear on a row, then it can be null.  Or maybe more preferable, a true/false statement, if a shipping timestamp is associated to an account, then the column will have a true for each row the account exist on.

Comments

  • Unknown
    Unknown

    If you have the ability to do Vertica Functions in beastmode turned on then you could do something like this: 

    Max(case when IFNULL(`Shipped Time`,'False') = 'False' then 'False' else 'True' end) over(partition by `Account Number`)

    If you have the feature turned on it will save successfully once you swap my fields for yours. If it does not save then you need to request the vertica-functions-beast-mode gets turned on through support. It should look something like this when done.

    Screen Shot 2020-09-04 at 11.58.48 AM.png

     

  • user056039
    user056039

    I don't have Vertica integrated, is there an alternative? Is Vertica a subscription service?

  • GrantSmith
    GrantSmith Indiana 🔴

    Hi @user056039 

     

    @Wills  is referring to Windowing Functions. This is a feature switch you can talk to your CSM to get it enabled within your instance.

     

    Here's a webpage describing windowing functions.

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