Re: View with and without ::text casting performs differently.

On 09/06/2013 12:35 PM, Tom Lane wrote:
> Brian Fehrle <brianf@consistentstate.com> writes:
>> On 09/05/2013 05:50 PM, Tom Lane wrote:
>>> I rather doubt that the now-explicit-instead-of-implicit casts have much
>>> to do with that.  It seems more likely that you forgot to re-ANALYZE in
>>> the new database, or there are some different planner settings, or
>>> something along that line.
>> I have two versions of the view in place on the same server, one with
>> the typecasting and one without, and this is where I see the differences
>> (no ::text runs in 0.5ms and with ::text runs in 13 or so minutes with
>> nested loop), so it's all running off the same statistics on the data.
> Hm.  Can you provide a self-contained example?

I'll see what I can do to recreate this with bogus data. It's sensitive
data that may just be some sort of anomaly in terms of the data
distribution that is causing it.

- Brian F
>
>             regards, tom lane