Does i can group by multiple field?
my database (53000 records)
i want to "group by" country, year, month (colums 6,3,2 of the database)
no problem for only country:
i like something like that but it's not working:
just say yes or no, don't invest time in this, i have already a workaround but i want to be sure the response is no...
yes, it's a ring (a HOF)!
i can't figure how it's working.
what i should put here to group by columns 6,3,2
Help !
Bump! someone can help me plz !
Use this:
(map ((item (list [6] [3] [2]@</a>addInput::list) of ⌸::list)@</a>addInput::ring grey) over (database)::list)
EDIT: realized this wasn't what you were looking for.
It seems that "group by" needs a "simple" key.
Simple as 
but to avoid some inconsistency with "join",
Thank's, that's already my workaround... it's working, but i don't like the output :
So, i created a new block:
i can expand the "column number" to add more columns
Here's the result:
you can try it in this project: (in the sprite my blocks)
Project not shared
Thank's: Done !
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