Thanks. I'll have a look at potentially patching this.

On Thursday, July 16, 2015 at 2:43:15 PM UTC-7, Jeremy Evans wrote:
>
> On Thursday, July 16, 2015 at 3:28:48 PM UTC-6, binarypaladin wrote:
>>
>> I'm using some many_to_many associations with distinct: true. In general, 
>> they work as expected. However, if the table contains a JSON column, I get 
>> the following error:
>>
>> Sequel::DatabaseError: PG::UndefinedFunction: ERROR:  could not identify 
>> an equality operator for type json
>>
>> What's the best workaround for this? I'd prefer it if I could tell 
>> distinct specifically which column to use for distinctness.
>>
>> PostgreSQL is 9.3.5 if that matters and Sequel is the latest.
>>
>
> For a workaround, instead of the :distinct option, use an association 
> block:
>
>   many_to_many :foos do |ds|
>     ds.distinct(:column1, :column2)
>   end
>
> I'm open to a patch that recognizes an array value for the :distinct 
> option and uses it as the arguments to Dataset#distinct.
>
> Thanks,
> Jeremy
>

-- 
You received this message because you are subscribed to the Google Groups 
"sequel-talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sequel-talk.
For more options, visit https://groups.google.com/d/optout.

Reply via email to