What's wrong here?
Wednesday, 1 February 2017 · 3 messages
ML
Marco Lettere1 Feb 2017 19:50 #
Hello all,
when running the following query:
hof:until(
function($i){ $i = 10},
function($i){ (admin:write-log(xs:string(current-dateTime()) || " --
" || $i), prof:sleep(1000), $i + 1)},
0
)I get the following output:
19:49:07.400 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 0 19:49:08.400 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 1 19:49:09.401 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 2 19:49:10.402 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 3 19:49:11.403 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 4 19:49:12.404 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 5 19:49:13.405 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 6 19:49:14.406 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 7 19:49:15.407 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 8 19:49:16.408 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 9
I would expect current-dateTime() to return a dateTime that increases by one second on every output. What is wrong with my understanding?
Thanks,
Marco.
CG
Christian Grün1 Feb 2017 19:58 #
Hi Marco,
fn:current-dateTime is determinstic [1]; as such, it will return the same value within the same query.
Try this here instead [2]: convert:integer-to-dateTime(prof:current-ms())Cheers,
Christian
[1] https://www.w3.org/TR/xpath-functions-31/#func-current-dateTime [2] http://docs.basex.org/wiki/Profiling_Module#prof:current-ms
Quoted text · Marco Lettere · 32 lines
On Wed, Feb 1, 2017 at 7:50 PM, Marco Lettere <m.lettere at gmail.com> wrote: > Hello all, > > when running the following query: > > hof:until( > function($i){ $i = 10}, > function($i){ (admin:write-log(xs:string(current-dateTime()) || " -- " || > $i), prof:sleep(1000), $i + 1)}, > 0 > ) > > I get the following output: > > 19:49:07.400 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 0 > 19:49:08.400 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 1 > 19:49:09.401 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 2 > 19:49:10.402 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 3 > 19:49:11.403 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 4 > 19:49:12.404 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 5 > 19:49:13.405 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 6 > 19:49:14.406 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 7 > 19:49:15.407 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 8 > 19:49:16.408 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 9 > > I would expect current-dateTime() to return a dateTime that increases by one > second on every output. What is wrong with my understanding? > > Thanks, > > Marco. >
ML
Marco Lettere1 Feb 2017 20:02 #
I knew it would have been something I was missing!
By the way I was trying my own current-dateTime based on
prof:current-ms but I was not yet aware about convert:integer-to-dateTime!
Always learning something new!
THANKS!
M.Quoted text · Christian Grün · 50 lines
On 01/02/2017 19:58, Christian Grün wrote: > Hi Marco, > > fn:current-dateTime is determinstic [1]; as such, it will return the > same value within the same query. > > Try this here instead [2]: > > convert:integer-to-dateTime(prof:current-ms()) > > Cheers, > Christian > > [1] https://www.w3.org/TR/xpath-functions-31/#func-current-dateTime > [2] http://docs.basex.org/wiki/Profiling_Module#prof:current-ms > > > > On Wed, Feb 1, 2017 at 7:50 PM, Marco Lettere <m.lettere at gmail.com> wrote: >> Hello all, >> >> when running the following query: >> >> hof:until( >> function($i){ $i = 10}, >> function($i){ (admin:write-log(xs:string(current-dateTime()) || " -- " || >> $i), prof:sleep(1000), $i + 1)}, >> 0 >> ) >> >> I get the following output: >> >> 19:49:07.400 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 0 >> 19:49:08.400 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 1 >> 19:49:09.401 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 2 >> 19:49:10.402 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 3 >> 19:49:11.403 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 4 >> 19:49:12.404 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 5 >> 19:49:13.405 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 6 >> 19:49:14.406 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 7 >> 19:49:15.407 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 8 >> 19:49:16.408 SERVER admin INFO 2017-02-01T19:49:07.399+01:00 -- 9 >> >> I would expect current-dateTime() to return a dateTime that increases by one >> second on every output. What is wrong with my understanding? >> >> Thanks, >> >> Marco. >>
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