BaseX-Talk

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5251 discussions

BaseX on Docker
by Rolf Kleef 25 Apr '18

25 Apr '18

Hi, Thanks for version 9! I am trying to get things running in docker container, and see in the github issues there have been a few changes such as the directories BaseX uses [1] which are not reflected in the README yet. If you like I can put a few things in a pull request while I figure things out here :-) ~~Rolf. [1] https://github.com/BaseXdb/basex/issues/1546

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Missing 'DELETE' in server protocol?
by Ben Engbers 25 Apr '18

25 Apr '18

Hi, It was only after starting to implement my R-client implementation in examples, that I noticed there is no 'DELETE'-command specified in the server protocol. Is this a deliberate ommission? I would guess that implementing such a command would come down to something like this: delete = function(name = name) { writeBin(as.raw(---BYTE---), private$sock) writeBin(private$raw_terminated_string(name), private$sock) return(list(info = private$info, success = self$bool_test_sock())) } If this is correct, where can I find (a list with) the required byte-codes? Ben Engbers

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BaseX Result pane wrap/unwrap option
by Yitzhak Khabinsky 24 Apr '18

24 Apr '18

Hello, I am running a XSLT transformation which is producing a wide textual output. <xsl:output method="text" /> Its output is 300 plus characters wide. It seems that the BaseX Result pane doesn't have a wrap/unwrap option. Is it possible to introduce such functionality to the BaseX Result pane? [cid:image001.png@01D3DBD4.8C176710] Regards, Yitzhak Khabinsky Technical Services Lead Millicom International Services LLC 396 Alhambra Circle, Suite 1100 Coral Gables, FL 33134 Skype4B: +1 (305) 445-4172 Tel: (954) 684-8673 yitzhak.khabinsky(a)millicom.com<mailto:.khabinsky@millicom.com> www.millicom.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.millico…>

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BaseX 9.0.1: Bug Fixes, Improvements
by Christian Grün 24 Apr '18

24 Apr '18

Dear all, Welcome to our first BaseX 9.01 maintenance release: http://basex.org/ An update is highly recommended: The major release had a critical bug, regarding the storage of short non-ASCII Unicode strings. This is the 9.0.1 changelog: CRITICAL BUG FIXES * Storage: short strings with extended Unicode characters fixed * XQuery: nested path optimizations reenabled (e.g. in functions) * XQuery: map:merge, size computation fixed * XQuery: node ordering across multiple database instances fixed IMPROVEMENTS * GUI: Better Java 9 support (DPI scaling, font rendering) * XQuery, collections: faster document root tests * New R client. Thanks Ben Engbers! * Linux: exec command used in startup scripts MINOR BUG FIXES * XQuery: Allow interruption of tail-call function calls * XQuery, HTTP parsing of content-type parameters * XQuery, restrict rewriting of filter to path expression * GUI: progress feedback when creating databases via double-click Have fun everyone, Christian

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database creation baseX.8.6.7
by Giuseppe Celano 23 Apr '18

23 Apr '18

Hi All, I can create a database via the GUI, but if I use db:create [1] I get the message "out of main memory": why? Thanks! db:create("myDB", "sourceDirectory", "destinationDirectory", map{"ftindex": true(), "language": false()} ) Best, Giuseppe

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Re: [basex-talk] baseX vs ExistDB
by Julio Croce 23 Apr '18

23 Apr '18

Welcome! I have not used exist, but I can share my history. I used sedna for many years. When development stopped I looked for alternatives. I have read many comparisons in WWW andI have found basex. A detailed benchmark of basex and others: https://bbddxml.wordpress.com/2014/01/08/un-benchmark-para-nuestras-bases-d…. If you know xmark, it is most important and most cited benchmark for xml. I have run these tests also (for Sedna and basex), and published results are close. In basex I notice that writing xml result to files is very fast. Also query and indexes optimisation is very clever (pues, more clever than me), sometimes only few miliseconds for gigabytes of xml. And basex has excelent support for official w3C standards (Fulltext, Update, all of Xquery 3.1. see https://en.wikipedia.org/wiki/XML_database). And very stable. I have used berkeley in early times, it was very slow. One question to the team: Can you include replication feature? Best regards Julio

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RFC2, Client for R
by Ben Engbers 22 Apr '18

22 Apr '18

Hi, I have changed the code for RbaseXClient.R in such a way that it complies more to the server protocol and to the R-style of coding. - 'execute' has been renamed to 'command' - All the functions in the Command Protocol section return a list with the complete server response. This makes it much easier to handle errors (see lines 8-14 in TestRBaseXClient.R). In the Query Command Protocol section, the functions 'more()' (as being called by results) and 'full()' now return the results, prefixed with a byte that represents the Type ID. Cheers, Ben Engbers

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baseX vs ExistDB
by Feargal Hogan 20 Apr '18

20 Apr '18

Hi Is anyone aware of any comparisons between baseX and Exist? I have some familiarity with Exist and I’d like o understand what are the benefits of each. Thanks Feargal

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Re: [basex-talk] BaseX-Talk Digest, Vol 100, Issue 34
by Feargal Hogan 20 Apr '18

20 Apr '18

> > On Thu, 2018-04-19 at 16:26 +0100, Feargal Hogan wrote: >>> >> From the comparison chart that Ben referenced earlier I noticed that >> baseX doesn?t seem to actually load xml files into an xml database, >> is that right? > No. Yes. Maybe. > > baseX does load the documents into a database. It stores them in an > internal data structure, not as textual XML. I think the comparison page perhaps misrepresents that point slightly. > > >> Does baseX need to be 'told' that it has been updated, in order to >> add the new data to its indeices? >> Or does it know there has been an update and automatically reindex? > > This isn't a meaningful quesiton. You are correct. In the context of my misunderstanding the comparison document, the question is pointless and meaningless. Thanks

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ExecuteCommand with a multiple Command objects?
by buko 20 Apr '18

20 Apr '18

Hello all, I’m currently in the process of evaluating BaseX for an embedded use case and I ran into an issue. I figured out that each Command is a transaction (though I think this should be made more prominent in the javadocs at http://docs.basex.org/javadoc/org/basex/core/Command.html) and I found the Execute command that lets multiple Commands be grouped together and executed as one… but the Execute command takes a string. What happens if I have a series of Command objects that I would like to execute together in a single transaction?

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