mirror of
https://github.com/zebrajr/postgres.git
synced 2026-01-15 12:15:21 +00:00
cb77bc0442
This patch causes one postgres_fdw test case to revert to the plan it used beforeaa86129e1, i.e., using a remote sort in preference to local sort. That decision is actually a coin-flip because cost_sort() will give the same answer on both sides, so that the plan choice comes down to little more than roundoff error. In consequence, the test output can change as a result of even minor changes in nearby costs, as we saw inaa86129e1(compare alsob690e5facand4b14e1871). b690e5fac's solution to stabilizing the adjacent test case was to disable sorting locally, and here we extend that to the currently- problematic case. Without this, the following patch would cause this plan choice to change back in this same way, for even less apparent reason. Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/2551253.1766952956@sss.pgh.pa.us