[$] PostgreSQL considers seccomp() filters

A discussion on the pgsql-hackers mailinglist at the end of August is another reminder that the suitability ofseccomp()filters is likely more narrow than was hoped. Applying filters to the PostgreSQL database is difficult for a number of reasons and thebenefit for the project and its users is not entirely clear. Thediscussion highlights the tradeoffs inherent in adding system-callfiltering to a complex software suite; it may help crystallize the thinkingof other projects that are alsolooking at supporting seccomp() filters.