Incorrect syntax for GROUP, UNGROUP, WRAP, UNWRAP

This forum is to report technical problems with Rel.
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HughDarwen
Posts: 121
Joined: Sat May 24, 2008 4:49 pm

Incorrect syntax for GROUP, UNGROUP, WRAP, UNWRAP

Post by HughDarwen »

It seems that Rel still uses V1 syntax for these operators. In TD/V2 we removed the parens and withdrew support for multiple groupings, ungroupings, wrappings and unwrappings. Thus, e.g., GROUP {a,b} AS c rather than GROUP ({a,b} AS c).

I hope this problem can be fixed fairly soon, because soon I want to publish the second edition of my An Introduction to Relational Database Theory, revised to use TD/V2.

Hugh
Dave
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Posts: 368
Joined: Sun Nov 27, 2005 7:19 pm

Re: Incorrect syntax for GROUP, UNGROUP, WRAP, UNWRAP

Post by Dave »

This has been fixed in the forthcoming update, which has been delayed some time due to work commitments consuming all available time and then some. As it's now coming to the end of term, my time is becoming freer than it was. Expect a new release in a few weeks.
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