GitHub user TTassoni added a comment to the discussion: help to Convert key - 
value pairs to field - value

Hi liosc
thanks again for time you're spending for me.
"I didn't get your point regarding the side effect". Sorry, my fault. I forget 
to send the output of 'ETL metadata injection' to 'write to log' transform in 
injection pipe.
Your idea is much better than mine, I took your example almost entirely, but 
for my purpose I want only one input (in real case it should be a table input 
that reads key - values pairs from a table), so I modified your files to inject 
'data grid' transform in injected.hpl file, I attach the zip, please feel free 
to get a look, if you want. 
As soon as I'll test it in a real case.
Best regards
Tom
[denorm_by_inj_v1.zip](https://github.com/user-attachments/files/19181048/denorm_by_inj_v1.zip)

GitHub link: 
https://github.com/apache/hop/discussions/4977#discussioncomment-12460156

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