| From: | Mark Dilger <pgsql(at)markdilger(dot)com> |
|---|---|
| To: | David Wheeler <david(at)kineticode(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: PL/pgSQL 'i = i + 1' Syntax |
| Date: | 2006-05-17 00:02:15 |
| Message-ID: | 446A6807.8070607@markdilger.com |
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| Thread: | |
| Lists: | pgsql-hackers |
David Wheeler wrote:
> On May 16, 2006, at 16:53, Mark Dilger wrote:
>
>> Sorry, I meant to say that it should only be a no-op according to the
>> language
>> specification, as I understand it. The fact that it works suggests
>> to me that
>> the implementation of PL/pgsql has been modified (or broken?).
>> Whether the
>> change is a bug or an intentional feature change, I don't know.
>
>
> Ah, yes, I agree, and that's why I posted my query.
>
>> mark
>>
>> P.S., Looking through the documentation, I don't immediately see the
>> spec for
>> how a regular '=' is supposed to work, but assignment is documented
>> as using the
>> ':=' syntax and says nothing about '='.
>
>
> Exactly. But I use = all the time for comparision:
>
> IF FOUND = TRUE THEN
> ....
> END IF
>
> Best,
>
> David
It seems this has been answered before, by Tom Lane:
http://archives.postgresql.org/pgsql-novice/2006-04/msg00138.php
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