2011/1/29 Stephen Frost <sfrost@snowman.net>:
> * Tom Lane (tgl@sss.pgh.pa.us) wrote:
>> See also
>> http://archives.postgresql.org/pgsql-hackers/2010-12/msg01579.php
>> which tries to draw a clear distinction between what FOR does and what
>> FOREACH does.
>
> Thanks for that, somehow I had missed that post previously. I think I
> can get behind the idea of FOREACH being used for 'vertical'
> (multi-value in a single value) loops while FOR is used for 'horizontal'
> (multi-row). This patch certainly needs to be improved to document
> this, in the grammar, in the code via comments, and in the actual
> documentation. It also needs to touch any place that talks about the
> other kinds of loops to be sure that FOREACH is included and that it's
> behavior is documented accordingly.
Stephen, please, update documentation freely. Current documentation is
really minimal.
Regards
Pavel
>
> Thanks again,
>
> Stephen
>
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