Hi BaseX team, I have the following simple query:
let $strings := ('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j')
let $arrays as array(*)* := (array{1 to 2}, array{3 to 6}, array{7 to 9})
let $arrays := sort($arrays, (), fn($seq){array:size($seq) * -1})
let $largest := $arrays => head()
return
for $idx in $largest?* return $strings[$idx]
When I execute it with BaseX 12.2 I get the following suprising error:
[XPTY0004] One item expected, 4 found: (3 to 6).
Much more suprising is that if I wrap the $arrays?* into a trace call it
works:
let $strings := ('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j')
let $arrays as array(*)* := (array{1 to 2}, array{3 to 6}, array{7 to 9})
let $arrays := sort($arrays, (), fn($seq){array:size($seq) * -1})
let $largest := $arrays => head()
return
for $idx in *trace($largest?*)* return $strings[$idx]
Result:
c
d
e
f
The root cause seems to be the sort function. Because if I remove that
line it works without the trace.
Best Regards, Nico -- Nico Kutscherauer XML Developer data2type GmbH Im Breitspiel 6A 69126 Heidelberg Tel.: +49-(0)6221-73 912 60 www.data2type.de <https://www.data2type.de> Workingdays: Tue/Wed/Thu/Fri(HO) Workinghours: 10-18.30 Company’s head office: Heidelberg Commercial Register court: AG Mannheim HRB 715195 CEO: Manuel Montero Pineda
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