Re: range_agg

From: Alexander Korotkov <aekorotkov(at)gmail(dot)com>
To: Zhihong Yu <zyu(at)yugabyte(dot)com>
Cc: PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: range_agg
Date: 2020-12-16 23:34:39
Message-ID: CAPpHfdszHO=zDh-fnD+A9AyROjHJc1u0hx=z1sKPxhhQYut-OQ@mail.gmail.com
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On Thu, Dec 17, 2020 at 1:03 AM Alexander Korotkov <aekorotkov(at)gmail(dot)com> wrote:
> On Thu, Dec 17, 2020 at 12:54 AM Zhihong Yu <zyu(at)yugabyte(dot)com> wrote:
> > + * The idea is to prepend underscores as needed until we make a name that
> > + * doesn't collide with anything ...
> >
> > I wonder if other characters (e.g. [a-z0-9]) can be used so that name without collision can be found without calling truncate_identifier().
>
> Probably. But multiranges just shares naming logic already existing
> in arrays. If we're going to change this, I think we should change
> this for arrays too. And this change shouldn't be part of multirange
> patch.

I gave this another thought. Now we have facility to name multirange
types manually. I think we should give up with underscore naming
completely. If both replacing "range" with "mutlirange" in the
typename and appending "_multirange" to the type name failed (very
unlikely), then let user manually name the multirange. Any thoughts?

------
Regards,
Alexander Korotkov

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