Hello,
Resolved it with
add_index %i[first_name last_name],
unique: true,
where: Sequel.lit('middle_name is ?', nil)
On Thursday, January 16, 2020 at 6:27:34 PM UTC+1, Aleksandr Zykov wrote:
>
> Hello All,
>
> I need to create a unique constraint with WHERE clause. Is it possible to
> do this with Sequel?
>
> I need to do something like this, but this does not work. It creates a
> regular constraint with no WHERE.
>
> add_unique_constraint %i[first_name last_name],
> where: Sequel.lit('middle_name is ?', nil)
>
> Best Regards,
> Aleksandr
>
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