On 30 Sep. 2016 19:36, "Emrul" <em...@emrul.com> wrote:
>
> Thanks Craig, I will look at that code.
>
> The alternative I'm considering is whether I can define my own index type
on
> the column storing my array of primary key ids.  The index would, for each
> primary key id just provide a reference to the ctids of the related
records.
>
> In theory, I think this might be less work.  However, I am yet to find a
> simple/bare index implementation that I can build upon.

I don't think indexes are fully pluggable yet. And I'd be surprised if it
were possible within GiST /GIN. Check out the 9.6 / v10 pg_am changes,
which I think may be relevant.

Or it could be an unrelated dead end because I know little about indexing.

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