May 2011 - developers-list

[Monetdb-developers] Basics about MonetDB
by 叶亮 01 Jun '11

01 Jun '11

Hi, I'm a new comer with some questions about basic conceptions of MonetDB. 1. The executor I've ever found the executor of postgreSQL at src\backend\executor, but cannot make sure where it is like that in MonetDB src. MonetDB\MonetDB\src\gdk or MonetDB5-server\MonetDB5\src\mal ? 3. MAL MAL (MonetDB Assembly Language) is a script tool only for MonetDB or a common script language that can be applied to other softwares. Why it is a must in MonetDB ? 4. .mx files In MonetDB, .mx files are compiled to make .h and .c files generated.(in this way ?) Why is this routines ? (not just coding in .h and .c files directly) Yel ---- Best Regards richardroky(a)gmail.com

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[Monetdb-developers] Announcement: New Apr2011-SP1 bugfix release
by Fabian Groffen 31 May '11

31 May '11

The MonetDB team at CWI/MonetDB BV is pleased to announce the Apr2011-SP1 bugfix release of the MonetDB suite of programs. At the time of this release, we also officially changed to our new website at http://www.monetdb.org/. This new website is our central source of information, and comes with our new logo and style. For details on this release, please see the release notes at <http://www.monetdb.org/Downloads/ReleaseNotes>.

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[Monetdb-developers] Django adapter for MonetDB 11.3.1
by Marco Quartulli 30 May '11

30 May '11

Dear all, an adapter to the Django web development framework for MonetDB 11.3.1 is available at https://github.com/marcoq/monetdb-python The code is functional and already running an experimental image retrieval site, yet full tests will need to be passed in order to consider inclusion in the Django tree as a proper backend. A merger into the source tree at https://github.com/vikram/monetdb-python has been requested. Marco

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[Monetdb-developers] Qualifying and fixing issues found by the test suite
by Gregory Burd 12 May '11

12 May '11

Hello all, I'm new to MonetDB, but I'm not new to databases or coding. I've been building the Apr2011 branch on my home system, a Fedora release 14 (Laughlin) (8x Intel(R) Xeon(R) CPU X3440 @ 2.53GHz, Memory 8187MB) using clang (clang version 2.8 (branches/release_28) Target: x86_64-redhat-linux-gnu Thread model: posix) and having great success - I am thrilled to be able to work with such an amazing piece of software that has such an elegant and well thought out engineering design and structured methodology (nice work!). Everything builds and runs as expected. However when I run "make check" there are a number of things that catch my eye and I want to know from the experts how you'd like me to help with resolving these potential issues. First, here's how I'm building things: export JAVA_HOME=/usr/java/jdk1.5.0_22 export PATH=${JAVA_HOME}/bin:$PATH export CC=clang ./configure --enable-testing --enable-developer --enable-debug --enable-assert --enable-instrument --enable-merocontrol --enable-strict --enable-warning --enable-dependency-tracking --enable-bits=64 --enable-jdbc --enable-odbc make -k --load-average=90 --jobs=`cat /proc/cpuinfo | grep processor | wc -l` && make check Failures include "major differences" found in the following: tst830.mal in mal vacuum.mal in modules/kernel attach00.mal in modules/mal common.mal in optimizer perl_dbi.MAL.sh in perl/dbi The attach differences I'm seeing don't seem (at first glance) to match those of http://bugs.monetdb.org/show_bug.cgi?id=2751 My general question is, should I report these as bugs? What kind of information from the test run would you like me to add to the bug record? How would I find out if these are already reported (I've tried a few searches already)? I'm happy to dig in and start working on these issues, contributing patches where/when I can. I hope to follow whatever established patterns there are for developing/fixing MonetDB. Also, I see a lot of output like "(attach00.test.err.FILTERED) significantly" and "(pithole.test.out.FILTERED) significantly" what does this mean? Are there tests being skipped? Is there some issue/error that's being filtered out (removing noise so as to better see the signal)? Is there a way to say, run all the tests including those that are expected to fail? Another, semi on-topic, question. I happen to use emacs, has anyone taken the time to write up a .mx mode so that it's a bit easier to develop against the .mx source files? Any debugging hints/tips/tricks hidden on the web anywhere? best, -greg

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[Monetdb-developers] JDBC 4 effort
by Christophe Galerne 01 May '11

01 May '11

Hi, Is there an effort to make the JDBC driver JDBC 4 compliant ? If this is the case, is there a way to participate ? Cdlt, Christophe

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