Looks like you want a subquery. You'll need to decide which of the items
to choose when you have a given category_code.
Say you want the first item with a given category code:
sub_query = db()._select(db.products.id.min(),
groupby=db.products.category_code)
results = db(db.products.id.belongs(sub_query).select()
On Wednesday, 8 June 2016 15:10:33 UTC+1, Gael Princivalle wrote:
> Hello.
>
> Is there a way to select some rows without duplicates for a specific field
> ?
>
> MODEL:
> db.define_table('products'):
> Field('code', type='string'),
> Field('category_code', type='integer'))
>
> ROWS:
> code / category_code
> A1125 / 3
> C2214 / 2
> D235 / 3
> Z886 / 1
>
> I would like to make a select that give this result:
> code / category_code
> A1125 / 3
> C2214 / 2
> Z886 / 1
>
> Someone have an idea ?
>
> Thanks.
>
>
>
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