Re: Identifying no-op length coercions

Hi,

On Jun 2, 2011, at 10:22 PM, Noah Misch wrote:

> Hi Alexey,
>
...
> Is your interest in cheap varchar(N)->varchar(N+M) conversions specifically, or
> in some broader application of this facility?

Exactly varchar conversions.

>
> Thanks for volunteering to review; that will be a big help.  Actually, I could
> especially use some feedback now on a related design and implementation:
>  http://archives.postgresql.org/message-id/20110524104029.GB18831@tornado.gateway.2wire.net
> Note that the third and fifth sentences of that description are incorrect.  The
> rest stands without them.  Even just some feedback on the mundane issue noted in
> the last paragraph would help.

Ok, I'll review it.

Thank you,
Alexey.

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