On 11 April 2016 at 21:43, Peter Geoghegan <p...@heroku.com> wrote: > Currently, debug instrumentation for sorting is only available if the > TRACE_SORT macro was defined when PostgreSQL was compiled. It is > defined by default, and so in practice it's always available; there is > really no upside to disabling it. "18.17. Developer Options" notes > this restriction for trace_sort, which is the only such restriction. > > The number of TRACE_SORT elog() logging callers has grown > significantly in the past couple of releases. The associated "#ifdef > TRACE_SORT" crud has also grown. > > I propose that we completely remove the TRACE_SORT macro, and all the > associated crud. Just having that as an option suggests that there is > some possible upside to disabling trace_sort, which is clearly not > true. I will write a patch doing this if there are no objections. I > think this is justifiable as clean-up for 9.6. >
Yeh, sort has changed enough now that fixes weren't going to backpatch cleanly, so its a good time to do cleanup. -- Simon Riggs http://www.2ndQuadrant.com/ <http://www.2ndquadrant.com/> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services