Case to a Negative Number
I have a beast mode to calculate the distinct count of products from transactions. These transactions can represent shipments or returns. If the transaction is a return, I want to case the distinct count of the products to a negative number. I currently have the following but it is only returning positive values:
COUNT(DISTINCT
(CASE
WHEN lte_tbl_return_code.return_reason_description is not Null THEN lte_product_header.product_id * -1 ELSE lte_product_header.product_id
END))
Attached is a screenshot of the data. Those that have the return for reissue return reason should be returning a negative number.
Thank you in advance for any suggestions!
Comments
-
The problem here is the aggregate that you are using.
You are counting the distinct number of Product IDs. This count would be the same regardless of a positive or negative value.
You should try something like this:
case when lte_tbl_return_code.return_reason_description is not Null
then -1* count(distinct lte_product_header.product_id)
else count(distinct lte_product_header.product_id)
end
If that doesn't work, then I think you will need to split this into two transforms
1:
count(distinct lte_product_header.product_id)
2:
case when lte_tbl_return_code.return_reason_description is not Null THEN
-1* `Field from step 1` else `Field from step 1`
0
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