Bugs item #1960373, was opened at 2008-05-08 18:08
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Category: Core
Group: MonetDB Common 1.22
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Sjoerd Mullender (sjoerd)
Assigned to: Nobody/Anonymous (nobody)
Summary: kunion and nil
Initial Comment:
mil>var a := new(void,oid).append(oid(nil)).append([EMAIL PROTECTED]).tunique();
mil>a.info().find("hkey").print();
[ "1" ]
mil>var b := kunion(a,a);
mil>b.info().find("hkey").print();
[ "1" ]
mil>b.print();
#-----------------#
# h t # name
# oid void # type
#-----------------#
[ nil, nil ]
[ [EMAIL PROTECTED], nil ]
[ nil, nil ]
If run with debugmask 10, BATpropcheck complains about b having hkey set.
The questions are:
- is tunique right in setting hkey, even in the presence of a nil?
- is kunion right in producing three values (since nil != nil)?
- is kunion right in setting hkey (again since nil != nil)?
- is BATpropcheck right in complaining that hkey is set (since nil = nil, or
perhaps because hkey should never be set in the presence of nils)?
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