Re: Different handling of PL/pgSQL for-loop variables in 8.3.7 vs. 8.2.7 ???

2009/6/11 hubert depesz lubaczewski <depesz@depesz.com>:
> On Thu, Jun 11, 2009 at 12:45:56PM +0200, Pavel Stehule wrote:
>> generally - modification of cycle's control variable isn't good
>> technique, because it's should be broken by some optimizations. When
>
> i would argue then that these optimizations are broken, then.
>
>> you would to modify this some variables, then use "while-loop"
>> instead.
>
> while technically possible, i find for loops much more straight forward,
> and clearer to understand.
>

sure, forloop is clean, but not when you do some alchemy with control
variables. When you need increase step, then use BY clause. But I
thing, so it's easy protect users by marking control variables as read
only variable.

regards
Pavel Stehule

> Best regards,
>
> depesz
>
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