Bugs item #2938065, was opened at 2010-01-23 18:53 Message generated for change (Comment added) made by mlkersten You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2938065&group_id=56967
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: SQL/Core Group: SQL "candidate" Status: Open Resolution: None Priority: 5 Private: No Submitted By: zeuner (zeuner) Assigned to: Niels Nes (nielsnes) Summary: corrupted values after multiple INSERT/DELETEs Initial Comment: The attached SQL statements lead to wrong output on MonetDB-SQL Feb2010. The final SELECT statement should result in the string 'modified' in the column "value", but it doesn't. Most likely it is a memory-related bug as most of the time, I get an empty string there, but during isolation of a reasonably small test case, I also got arbitrary binary data, and on occasion a string length overflow assertion breaking inside str.mx. The test system runs CentOS 5.4 on x86_64, having MonetDB compiled with 64-bit OIDs. The compiler was "gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46)". ---------------------------------------------------------------------- >Comment By: Martin Kersten (mlkersten) Date: 2010-01-24 08:29 Message: to be sure, you are using a check out of the candidate code for the Feb2010 release of what date? There are major changes in that area for which any indication of an error is relevant information. ---------------------------------------------------------------------- Comment By: zeuner (zeuner) Date: 2010-01-24 05:33 Message: I encountered a similar data corruption on other queries. Interestingly, the corrupted column was also initialized from a max() aggregate. I also had max() aggregates over integer columns in the same query, but these were processed correctly, so it seems to apply only to string columns. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2938065&group_id=56967 ------------------------------------------------------------------------------ Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev _______________________________________________ Monetdb-bugs mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/monetdb-bugs
