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Many of the objects we create during the regression tests are put in the public schema, so that using the same names in different regression tests creates a hazard of test failures if any two such scripts run concurrently. This patch cleans up a bunch of latent hazards of that sort, as well as two live hazards. The current situation in this regard is far worse than it was a year or two back, because practically all of the partitioning-related test cases have reused table names with enthusiasm. I despaired of cleaning up that mess within the five most-affected tests (create_table, alter_table, insert, update, inherit); fortunately those don't run concurrently. Other than partitioning problems, most of the issues boil down to using names like "foo", "bar", "tmp", etc, without thought for the fact that other test scripts might use similar names concurrently. I've made an effort to make all such names more specific. One of the live hazards was that commit 7421f4b8 caused with.sql to create a table named "test", conflicting with a similarly-named table in alter_table.sql; this was exposed in the buildfarm recently. The other one was that join.sql and transactions.sql both create tables named "foo" and "bar"; but join.sql's uses of those names date back only to December or so. Since commit 7421f4b8 was back-patched to v10, back-patch a minimal fix for that problem. The rest of this is just future-proofing. Discussion: https://postgr.es/m/4627.1521070268@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/.