* The order by results in an in-memory sort that COULD blow out the
worker mem buffer and result in sorting having to take place on disk.
* This WILL happen with a default postgres 4MB mem buffer. We saw as
much as 20MB used. Note that AWX defaults postgres mem worker buffer to
3% of the DB memory on external installs and 1% on same-node installs.
So for a 16GB remote DB this would not be a problem.
* We are going to avoid this problem all together by NOT doing a sort
when gathering. Instead, we will sort remotely, in analytics.
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