Re: Regex with > 32k different chars causes a backend crash

Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> writes:
> On 03.04.2013 18:21, Tom Lane wrote:
>> Obviously Henry didn't think that far ahead. I agree that throwing
>> an error is the best solution, and that widening "color" is probably
>> not what we want to do. You want to fix that, or shall I?

> I can do it. I assume that Tcl has the same bug, so I'll submit a report
> there, too.

Yes, definitely.

It occurs to me that at some point it might be useful to convert "color"
to unsigned short, so that you could have 64K of them --- but we'd still
need the error check anyway, and there's no reason to tackle such a
change today. (This possible change is, however, another reason to not
want pg_trgm looking directly at the internals of the data structure...)

regards, tom lane