Re: [sub-select] Some examples and discussion

Hello all,

>  I'm curious as to the interplay between:
>
>  projected expressions
>  sub-selects
>  assignment
>  Is there a combination of these that makes the 3rd irrelevant?

Sub-selects can't be avoided, period. Projected expressions can be
avoided if assignments are allowed --- just LET a fake variable and
return it. Assignments can be avoided if projected expressions are
allowed (but macroexpansion of LET may result a huge amount of text).

I'd recommend to not choose 20 of 3 as soon as all 3 can be implemented.
Developers have enough reasons for headache, an artificial puzzle of
weird limitations of the language will not make them happy.

Best Regards,

Ivan Mikhailov
OpenLink Software
http://virtuoso.openlinksw.com