On Wed, Nov 19, 2014 at 11:13 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Andrew Dunstan <and...@dunslane.net> writes:
>> On 11/19/2014 06:35 AM, Simon Riggs wrote:
>>> I seem to share the same opinion with Andrew: its not going to hurt to
>>> include this, but its not gonna cause dancing in the streets either. I
>>> would characterize that as 2 very neutral and unimpressed people, plus
>>> 3 in favour. Which seems enough to commit.
>
>> That's about right, although I would put it a bit stronger than that.
>> But if we're the only people unimpressed I'm not going to object further.
>
> FWIW, I would vote against it also.  I do not find this to be a natural
> extension of RAISE; it adds all sorts of semantic issues.  (In particular,
> what is the evaluation order of the WHEN versus the other subexpressions
> of the RAISE?)

What I liked about this syntax was that we could eventually have:

RAISE ASSERT WHEN stuff;

...and if assertions are disabled, we can skip evaluating the
condition.  If you just write an IF .. THEN block you can't do that.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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