Search found 9 matches

by tjerkheijboer
Fri Jul 23, 2010 5:44 pm
Forum: Report a Bug
Topic: virtual relvar with new type
Replies: 7
Views: 9281

Re: virtual relvar with new type

thanks,

I hope it is useful,

tjerk
by tjerkheijboer
Fri Jul 23, 2010 9:19 am
Forum: Report a Bug
Topic: virtual relvar with new type
Replies: 7
Views: 9281

Re: virtual relvar with new type

Ok, I have not read that it was not possible, but it seemed a bit peculiar. However then I get at least two exception handler statments when I do the following: something like we have a collection of linesegments C (which could for example include polylines or polygones: TYPE C# POSSREP {C# CHAR}; V...
by tjerkheijboer
Wed Jul 21, 2010 4:47 pm
Forum: Report a Bug
Topic: virtual relvar with new type
Replies: 7
Views: 9281

Re: virtual relvar with new type

it works, given of course also the foreign key constraints:

CONSTRAINT LP_L_KEY LP {L#} <= L {L#};
CONSTRAINT LP_P_KEY LP {Pt} <= P {Pt};
by tjerkheijboer
Wed Jul 21, 2010 4:40 pm
Forum: Report a Bug
Topic: virtual relvar with new type
Replies: 7
Views: 9281

virtual relvar with new type

Hi, I am not sure whether this is a feature or not, but given the following (same as previous bug-posts): TYPE Pt POSSREP {X RATIONAL, Y RATIONAL}; TYPE L# POSSREP {L# CHAR}; TYPE LINESEG POSSREP { LINESEG RELATION {Pt Pt}}; VAR P BASE RELATION {Pt Pt} KEY {Pt}; VAR L BASE RELATION {L# L#} KEY {L#};...
by tjerkheijboer
Tue Jun 22, 2010 8:38 am
Forum: Report a Bug
Topic: possible rename problem
Replies: 2
Views: 5217

Re: possible rename problem

keep up the good work :D
by tjerkheijboer
Mon Jun 21, 2010 6:51 am
Forum: Report a Bug
Topic: possible rename problem
Replies: 2
Views: 5217

possible rename problem

Hi, I am not sure whether this is a bug or a feature, but maybe you can check this on your machine: Given the following: TYPE Pt POSSREP {X RATIONAL, Y RATIONAL}; TYPE L# POSSREP {L# CHAR}; VAR P BASE RELATION {Pt Pt} KEY {Pt}; P := RELATION { TUPLE {Pt Pt(0.0,0.0)}, TUPLE {Pt Pt(0.0,1.0)}, TUPLE {P...
by tjerkheijboer
Fri Jun 11, 2010 2:14 pm
Forum: Report a Bug
Topic: another group bug
Replies: 2
Views: 5110

Re: another group bug

possibly its the same problem as here http://shark.armchair.mb.ca/~dave/relfo ... ?f=2&t=107...
by tjerkheijboer
Fri Jun 11, 2010 1:22 pm
Forum: Report a Bug
Topic: another group bug
Replies: 2
Views: 5110

another group bug

Hi, Is it possible to do multiple groupings on different attributes of a relation? It seems it should be possible but when I try it with the following; / ------------------------------------ type definitions ------------------------------------------ TYPE Pt POSSREP {X RATIONAL, Y RATIONAL}; TYPE L#...
by tjerkheijboer
Thu Jun 10, 2010 12:24 pm
Forum: Report a Bug
Topic: small dbbrowser bug
Replies: 1
Views: 4531

small dbbrowser bug

Hi I think i found a bug in the enhanced mode of the DBbrowser if you have the following: TYPE POINT POSSREP {X RATIONAL, Y RATIONAL}; VAR P BASE RELATION {POINT POINT} KEY {POINT}; P := RELATION { TUPLE { POINT POINT(0.0,0.0)}, TUPLE { POINT POINT(0.0,1.0)}, TUPLE { POINT POINT(1.0,0.0)}, TUPLE { P...