15 June 2016
An interesting tool for quality assurance of C compilers is Csmith, a generator of random C programs. I had come to appreciate it during the development of an optimization phase for a C compiler. This compiler features extensive regression tests, and the correctness of the translated programs is also tested using standardized benchmarks. The latter, […]
02 December 2015
The free Linux distribution Debian is now available as a supported distribution in the Azure Marketplace. In collaboration with Microsoft, credativ will also take over the ongoing maintenance of the Debian images. The Debian images created by credativ are now available for Debian 8 (Jessie) and Debian 7 (Wheezy). Further information is available on Microsoft’s […]
05 August 2014
Since PostgreSQL® 9.1, PostgreSQL® has implemented an interface for accessing external data sources. The interface defined in the SQL Standard (SQL/MED) allows transparent access to and manipulation of external data sources in the same manner as with PostgreSQL®-native tables. External data sources appear as tables in the respective database and can be used without restriction […]
09 September 2013
PostgreSQL® 9.3 ist da! Die neue Hauptversion bringt viele Verbesserungen und neue Funktionen. Dieser Artikel stellt einige der interssanten Neuerungen vor. Verbessertes Locking mit Fremdschlüsseln Fremdschlüssel sind unabdingbar für die referentielle Integrität der Daten. Allerdings brachten diese bis einschließlich PostgreSQL® 9.2 auch unter bestimmten Bedingungen Lockingprobleme bei UPDATE auf Spalten mit Fremdschlüsseln mit sich. Vor […]
09 September 2013
PostgreSQL® 9.3 ist da! Die neue Hauptversion bringt viele Verbesserungen und neue Funktionen. Dieser Artikel stellt einige der interssanten Neuerungen vor. Verbessertes Locking mit Fremdschlüsseln Fremdschlüssel sind unabdingbar für die referentielle Integrität der Daten. Allerdings brachten diese bis einschließlich PostgreSQL® 9.2 auch unter bestimmten Bedingungen Lockingprobleme bei UPDATE auf Spalten mit Fremdschlüsseln mit sich. Vor […]
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