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0c7efd9757
We were already reporting it, but only after the parallel workers were finished, which is visibly much later than what happens in a serial build. With this change we report it when the leader starts its own sort phase when participating in the build (the normal case). Now this might happen a little later than when the workers start their sorting phases, but a) communicating the actual phase start from workers is likely to be a hassle, and b) the sort phase start is pretty fuzzy anyway, since sorting per se is actually initiated by tuplesort.c internally earlier than tuplesort_performsort() is called. Backpatch to pg12, where the progress reporting code for CREATE INDEX went in. Reported-by: Tomas Vondra <tomas.vondra@enterprisedb.com> Author: Matthias van de Meent <boekewurm+postgres@gmail.com> Reviewed-by: Greg Nancarrow <gregn4422@gmail.com> Reviewed-by: Álvaro Herrera <alvherre@alvh.no-ip.org> Discussion: https://postgr.es/m/1128176d-1eee-55d4-37ca-e63644422adb