Dataview - Table, Cards

Hello, I have started using DataView cards. I have prepared the following query :

TABLE WITHOUT ID 
link(rows.file.link,rows.pn_plant) as "Agrati PN",
embed(link(img_product,"1")) as "Draft", 
rows.pn_customer as "PN Customer",
rows.customer as "Customer",
rows.desc_product as "Desc. Prod.",
rows.samples_location as "Location of Samples" 
FROM "002-Presviluppo_&_Feasability"
where (type = "proto" or type="presviluppo") and status=5
GROUP BY img_product
SORT pn_plant ASC

Would like the pn_plant to appear only once, since, as you can see from the image, it currently appears a number of times equal to its repetitions in the notes, below the output :

Thank you for your support.

I wanted to use a function like split or substring to extract the value of pn_plant just once. But if I try with the following command:

split(rows.pn_plant," ")[0] as "PN PLANT",

it tells me:

Dataview: Every row during final data extraction failed with an error; first 24:
 - No implementation of 'split' found for arguments: array, string
- No implementation of 'split' found for arguments: array, string
- No implementation of 'split' found for arguments: array, string

?? Any ideas to help me?

Thank you in advance.