5bde1651bb
When invoked for the first time in a session, current_schema() and current_schemas() can finish by creating a temporary schema. Currently those functions are parallel-safe, however if for a reason or another they get launched across multiple parallel workers, they would fail when attempting to create a temporary schema as temporary contexts are not supported in this case. The original issue has been spotted by buildfarm members crake and lapwing, after commit c5660e0 has introduced the first regression tests based on current_schema() in the tree. After that, 396676b has introduced a workaround to avoid parallel plans but that was not completely right either. Catversion is bumped. Author: Michael Paquier Reviewed-by: Daniel Gustafsson Discussion: https://postgr.es/m/20190118024618.GF1883@paquier.xyz
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/.