BaseX-Talk August 2020

basex-talk@mailman.uni-konstanz.de

25 participants
28 discussions

Autocomplete with RESTXQ
by Imsieke, Gerrit, le-tex 21 Jul '21

21 Jul '21

Hi List, Can anyone recommend a lightweight vanilla Javascript autocomplete library that can easily be used together with BaseX RESTXQ? Maybe even a readily cloneable/modifiable example? I don’t have a preference for a server response format. The RESTXQ service may be configured to return XML, JSON, or HTML No CORS restrictions need to be considered, the query host is the same that delivers the HTML pages. Gerrit

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BaseX 9.4.2: Tweaks & Fixes
by Christian Grün 02 Apr '21

02 Apr '21

Dear all, We have released another 9.4 late-summer maintenance release with new performance tweaks and minor bug fixes: http://basex.org In addition, we have started a new Wiki article on XQuery optimizations, which we plan to extend step by step: https://docs.basex.org/wiki/XQuery_Optimizations We are looking forward to your feedback; have fun, Your BaseX Team

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Options for ft:search
by Sebastian Zimmer 15 Mar '21

15 Mar '21

Hi, I'd like to request a feature concerning the ft:search method: An `lserror` option that works exactly like the global option `LSERROR`. It would be nice if we could set the maximum Levenshtein distance specifically for each fuzzy search without having to adjust the global option. Another question on ft:search: Is there a reason why it doesn't have a `case` option just like ft:contains has one? Best regards, Sebastian

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ancestor axis i.c.w. fetched XML issue
by RobStapper 31 Aug '20

31 Aug '20

Hi Christian, I encountered some inconsistency when using an fetched XML-node in combination with xpath’s ancestor-axis. I attached a small snippet. I expect an ancestor here. It works alright if the XML-node is not fetched from a document or in case of the parent-axis. Best Regards, Rob Stapper Sent from Mail for Windows 10 -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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json:doc-available()
by Hans-Juergen Rennau 30 Aug '20

30 Aug '20

Dear BaseX team, it's really great that now we have functions json:doc(), csv:doc() and html:doc(). In my opinion it becomes increasingly obvious that BaseX is a powerful data integration platform. Perhaps you will also add the corresponding xxx:doc-available() functions? Kind regards,Hans-Jürgen

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superfluous shape="area' when using html:parse()
by Jos van den Oever 30 Aug '20

30 Aug '20

Hi all, When loading a document with html:parse(), an extra attribute is added to every <a/> element. <a href="abc"></a> becomes <a shape="rect" href="abc"></a> This error is even shown in the example on the wiki: https://docs.basex.org/wiki/HTML_Module It turns out this behaviour can be avoided by using the 'nodefaults" option of TagSoup: html:doc($uri, map { 'nodefaults': true() }) That's a lot faster than removing these attributes from loaded document. ⤳Jos

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Re: [basex-talk] [EXTERNAL] - Re: XQExpression-8.executeQuery() API throws java.lang.NullPointerException exception while executing XQuery(retrieving the 171 MB xml document) like db:open('testenvSSL1', '6300000180000114/0600000180002931.xml')
by Christian Grün 28 Aug '20

28 Aug '20

Exactly; it’s called Client API in the documentation: https://docs.basex.org/wiki/Java_Examples Srikumar Choudhury <schoudhu(a)opentext.com> schrieb am Fr., 28. Aug. 2020, 07:33: > Hi Christian, > Are you talking about BasexClient as mentioned in > below link? is this BaseX API? > > > https://github.com/BaseXdb/basex/blob/master/basex-examples/src/main/java/o… > Thanks, > Srikumar > ------------------------------ > *From:* Christian Grün <christian.gruen(a)gmail.com> > *Sent:* Thursday, August 27, 2020 7:57 PM > *To:* Srikumar Choudhury <schoudhu(a)opentext.com> > *Cc:* BaseX <basex-talk(a)mailman.uni-konstanz.de>; Rajiv Pandya < > rpandya(a)opentext.com>; Sharath Babu Pulumati <spulumat(a)opentext.com> > *Subject:* Re: [EXTERNAL] - Re: XQExpression-8.executeQuery() API throws > java.lang.NullPointerException exception while executing XQuery(retrieving > the 171 MB xml document) like db:open('testenvSSL1', > '6300000180000114/0600000180002931.xml') > > …and our own API will definitely consume less memory. Did you try it as > well? > > > > On Thu, Aug 27, 2020 at 2:55 PM Christian Grün > <christian.gruen(a)gmail.com> wrote: > > > > > do I need to increase -Xmx4096m to higher? > > > > +1 >

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27 Aug '20

> do I need to increase -Xmx4096m to higher? +1

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Unpredictable function return types seems to default to item()? instead of item()*. Applies to 9.4.2
by Wiemer, Sebastian 27 Aug '20

27 Aug '20

Hi, Thank you Christian for the new 9.4.2. release! The function "f()" below will yield to the error: "Cannot promote item()? to xs:integer?: $result_4" This works in BaseX 9.1 ------ declare function local:f() as xs:integer()*{ let $id := client:connect("localhost", 1984, "admin", "admin") let $result := client:query($id, "1,2") let $close := client:close($id) return $result }; local:f() ----- I guess, that unpredictable return types at compile time default to item()? instead of item()* and thus cannot be used in a function returning anything else but item()? Has someone an idea for a solution/workaround for this? Best regards, Sebastian Eine Studie. Über 1300 Befragte. Ein Thema: Künstliche Intelligenz. https://ki.adesso.de/de/erste-schritte/index.html?pk_campaign=KI%20Report&p… ------------------------------------------------------- >>> business. people. technology. <<< ------------------------------------------------------- adesso SE mit Sitz in Dortmund Vorstand: Michael Kenfenheuer (Vors.), Dirk Pothen, Andreas Prenneis, Stefan Riedel, Jörg Schroeder Vorsitzender des Aufsichtsrates: Prof. Dr. Volker Gruhn Amtsgericht Dortmund HRB 20663

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Xquery performence
by chandra sekhar n 27 Aug '20

27 Aug '20

Dear Basex team, We are facing an xquery performance issue. Please find the query in below and please suggest any clue to optimize query let $subbrk := (collection("867509_Voice_DECEMBER-19_Billed_1")/SUBCUSTBRK) let $detailUsageTxn := $subbrk/DETAIL/TRANSACTION[@Usage = 'usage'] let $DistCallTypesAll := ($detailUsageTxn/SUB_SECTION/@Type) let $DistCallTypes := ( for $r in $DistCallTypesAll group by $ct := $r return $ct) *//Here taking nearly 3 minutes* let $allmonths := distinct-values($subbrk/Month) let $rowcnt := count($detailUsageTxn/SUB_SECTION) let $months := $allmonths[position() le 10000] let $opttype := 'NumVal' let $durop := 'hh:mm:ss' return ( if($DistCallTypes!='' ) then( for $month in $months return <R> <GRPBY>{ $month }</GRPBY>{ if($opttype = 'NumVal') then for $ct in $DistCallTypes let $ctCnt := sum($detailUsageTxn/SUB_SECTION[data(@Type) = data($ct) and data(../../../Month) = $month]/@Calls) *//Here taking 4 to 5 minutes* return element { replace(concat('_',data($ct)),'(\.|\[|\]|\\|\||\-|\^|\$|\?|\*|\+|\{|\}|$|$| |')', '_') } {xs:decimal($ctCnt)} else () } </R>) else() ) Regards, Chandrasekhar

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BaseX-Talk August 2020