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force_parallel_mode = regress is supposed to force use of a Gather node without having any impact on EXPLAIN output. But it failed to accomplish that if both ANALYZE and VERBOSE are given, because that enables per-worker output data that you wouldn't see if the Gather hadn't been inserted. Improve the logic so that we suppress the per-worker data too. This allows putting the new test case added by commit 5935917ce back into the originally intended form (cf. 776a2c887, 22864f6e0). We can also get rid of a kluge in subselect.sql, which previously had to clean up after force_parallel_mode's failure to do what it said on the tin. Discussion: https://postgr.es/m/18445.1576177309@sss.pgh.pa.us
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/.