
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
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.
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