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13 participants
5244 discussions

BaseX 9.4 - XQuery locks - documentation query
by James Ball 30 Jul '20

30 Jul '20

Hello, I was just looking at the changes to locking for 9.4 and I think the documentation has got ‘garbled’ in an update. https://docs.basex.org/wiki/Transaction_Management#XQuery_Locks <https://docs.basex.org/wiki/Transaction_Management#XQuery_Locks> " The lock may be transformed to a write lock by cominthe operations as Similar to the internal database locks, write locks block all other operations while read locks allow parallel access. “ I think this line should be two bullets but I’m not sure what ‘cominthe operations’ should be? Combining? The lock may be transformed to a write lock by combining operations Similar to the internal database locks, write locks block all other operations while read locks allow parallel access. I’m happy to update the wiki but I wasn't confident enough that I’ve understood the 9.4 change to do it without first checking on the list. Regards, James

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Testing if a database exists and if some files exist
by Ramzi Hammouda 29 Jul '20

29 Jul '20

Hello BaseX team, I'm building a C# application, I'm using Rest APIs, how can I test if a database exists or not when I launch my application, and create necessary db/files when they are missing ? Thanks, Ramzi P Respectons ensemble l'environnement. N'imprimez ce message que si n?cessaire. Let's respect the environment together. Only print this message if necessary.

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Reg : Memory leak suspect
by chandra sekhar n 29 Jul '20

29 Jul '20

Dear Basex Team, Basex server instance consuming more money,That instance is not releasing the memory ,to resolve this issue every time we are doing manually stopping the basex server instance and again starting. We are using the Basex7.9 version. We found the leak suspect.Please find in below 986,394,064 bytes (41.11 %) of Java heap is used by 4,062,161 instances of org/basex/query/path/IterStep$1 480,109,832 bytes (20.01 %) of Java heap is used by 100,000 instances of org/basex/query/value/node/FElem 206,334,096 bytes (8.6 %) of Java heap is used by 633,122 instances of org/basex/query/iter/NodeSeqBuilder 178,523,080 bytes (7.44 %) of Java heap is used by 37,245 instances of org/basex/query/value/node/FElem 103,703,288 bytes (4.32 %) of Java heap is used by 1,069,602 instances of org/basex/query/value/node/DBNode What may be causing this problem and what are some possible solutions? Regards, Chandrasekhar

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Inserting a two double quoted attribute
by Ramzi Hammouda 27 Jul '20

27 Jul '20

Hello BaseX team, I need to insert a node that has an attribute with two double quotes. An example: let $message:='<Amt Ccy=""GBP"">3.00</Amt>' return insert nodes fn:parse-xml-fragment($message) as last into doc('testingdb/testing.xml') The GBP attribute is with two " so it gives the error: SAX: file://C:/Program$20Files(86)/BaseX/(Line1)<file:///C:/Program$20Files(86)/BaseX/(Line1)>: whitespace expected, attribute name found. How can I solve the issue? P Respectons ensemble l'environnement. N'imprimez ce message que si n?cessaire. Let's respect the environment together. Only print this message if necessary.

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Re: [basex-talk] [EXTERNAL] - confirm 923b1d852800938568719405edbd581304f2caea
by Srikumar Choudhury 27 Jul '20

27 Jul '20

Hi, <!DOCTYPE some name SYSTEM .. and <?xml version="1.0"?> data loss are happening while importing the xml document using db:replace(...) API. <?xml version="1.0"?> <!DOCTYPE testSuiteConfig SYSTEM "../../../configs/TestConfig_2_1.dtd"> etc. We need help to resolve this issue. we are using Java executeQuery api of XQExpression. class to run "db:replace(...)" query. Please help us, how we can resolve this issue. Thanks, Srikumar ________________________________ From: BaseX-Talk <basex-talk-bounces(a)mailman.uni-konstanz.de> on behalf of basex-talk-request(a)mailman.uni-konstanz.de <basex-talk-request(a)mailman.uni-konstanz.de> Sent: Monday, July 27, 2020 10:54 AM To: Srikumar Choudhury <schoudhu(a)opentext.com> Subject: [EXTERNAL] - confirm 923b1d852800938568719405edbd581304f2caea Mailing list subscription confirmation notice for mailing list BaseX-Talk We have received a request from 49.207.207.45 for subscription of your email address, "schoudhu(a)opentext.com", to the basex-talk(a)mailman.uni-konstanz.de mailing list. To confirm that you want to be added to this mailing list, simply reply to this message, keeping the Subject: header intact. Or visit this web page: https://urldefense.com/v3/__https://mailman.uni-konstanz.de/mailman/confirm… Or include the following line -- and only the following line -- in a message to basex-talk-request(a)mailman.uni-konstanz.de: confirm 923b1d852800938568719405edbd581304f2caea Note that simply sending a `reply' to this message should work from most mail readers, since that usually leaves the Subject: line in the right form (additional "Re:" text in the Subject: is okay). If you do not wish to be subscribed to this list, please simply disregard this message. If you think you are being maliciously subscribed to the list, or have any other questions, send them to basex-talk-owner(a)mailman.uni-konstanz.de.

1 0

Memoize
by Mickael Desfrenes 25 Jul '20

25 Jul '20

Hello dear basex list, Is there any known solution for function memoization in basex ? Or maybe a cache implementation ? M. Desfrênes

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Fwd: [xsl] [OT] New Slack workspace for XML discussions
by Majewski, Steven Dennis (sdm7g) 25 Jul '20

25 Jul '20

FYI: > Begin forwarded message: > > From: "Adam Retter adam.retter(a)googlemail.com" <xsl-list-service(a)lists.mulberrytech.com> > Subject: [xsl] [OT] New Slack workspace for XML discussions > Date: April 16, 2020 at 11:59:25 AM EDT > To: xsl-list(a)lists.mulberrytech.com > Reply-To: <xsl-list(a)lists.mulberrytech.com> > > Hopefully the moderators won't mind me posting this? I think it has > value for readers of this list... > > Just a quick heads up in-case anyone is interested, there is now a new > vendor neutral Slack Workspace for discussing all things XML related - > https://www.xml.com/news/2020-04-slack-workspace-for-the-xml-community/ > > Cheers Adam. > -- > Adam Retter > > skype: adam.retter > tweet: adamretter > http://www.adamretter.org.uk > --~---------------------------------------------------------------- > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > EasyUnsubscribe: http://lists.mulberrytech.com/unsub/xsl-list/504751 > or by email: xsl-list-unsub(a)lists.mulberrytech.com > --~--

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Transaction Support
by Reto Peter 17 Jul '20

17 Jul '20

I am evaluating BaseX for my XML project. I need transaction support like - Start transaction - Run queries (read, write, update) - Commit or rollback transaction When I see the documentation, it lists Transaction Manager. But when I look at the details, I cannot find anything like that. Anyone can explain me how is the support, or is there an add-on or planned something? Best regards Reto, Frauenfeld, Schweiz

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Possible bug in database size (bytes) after database optimize from BaseX Database Administration
by Geoff Alexander 16 Jul '20

16 Jul '20

I've found that when I perform a database optimize on an unoptimized database that while the record count decreases as expected, the database size (bytes column) stay the same. Is this a bug in reporting the database size (less severe problem) or a bug in the database not reducing on optimize (more severe problem)? I've encountered this with both BaseX 8.6.7 and 9.3.3 running on Windows 10. Thanks, Geoff Alexander, Ph.D. Software Engineer, Corporate Tools Development IBM Corporation Charlotte, NC

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Database file path
by Vladimir Churyukin 16 Jul '20

16 Jul '20

Hello, We have a data transformation pipeline that works with XML files of different sizes, sometimes big (up to several gigabytes). We are using BaseX to do the transformations. For smaller files we use the MAINMEM option, because the whole database can fit in memory. But for some files we can't do that, but all databases we create are simply disposable, and we'd like to control where we put them, and destroy them after the processing. Is there a special option or any other way to specify where particular database's files will reside? How to specify that when we call CreateDB command? thank you, Vladimir

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