Simon Riggs < simon@2ndquadrant.com> writes: > The following patch implements a fairly light set of timing statements > aimed at understanding external sort performance. There is no attempt to > alter the algorithms.
What do people think about putting something like this into 8.1? Strictly speaking it's a new feature, but the patch seems pretty noninvasive, and we'd be much more likely to get data points if the code exists in the mainline release than if people have to patch their copies.
> postgres=# set debug_sort=true;
I'm a bit inclined to call it trace_sort instead, and to document it under "Developer Options". Comments?
regards, tom lane
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