On May 16, 2006, at 16:30, Andrew Dunstan wrote:

> It ought to be illegal to modify the loop control variable anyway,
> IMNSHO - it certainly is in Ada, the distant antecedent of pl/pgsql.

I agree, but I must say that it's incredibly useful to be able to
increment by two as I go through a loop:

FOR i IN 1 + offset .. 11 + offset LOOP
total := total + substring(ean, i, 1)::INTEGER;
i = i + 1;
END LOOP;

Best,

David

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