Incorrect syntax for GROUP, UNGROUP, WRAP, UNWRAP
Posted: Tue Jun 17, 2014 2:52 pm
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
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