I don't know if I understood the "Aggregates are self-contained" section. The SQL looks self-contained, as long as you read the whole query. And one has to read the whole query in the Plisquin version too (but definitions come first).
In the last section, I'm not sure what a "scalar" or "plural join" are. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/CAFUu9R7K79i5dghC%3DG2aT1AepKBuc2CHnsKNUeGdanHRwXn47w%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
