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psql, pg_dump, and pg_amcheck share code to process object name patterns like 'foo*.bar*' to match all tables with names starting in 'bar' that are in schemas starting with 'foo'. Before v14, any number of extra name parts were silently ignored, so a command line '\d foo.bar.baz.bletch.quux' was interpreted as '\d bletch.quux'. In v14, as a result of commit 2c8726c4b0a496608919d1f78a5abc8c9b6e0868, we instead treated this as a request for table quux in a schema named 'foo.bar.baz.bletch'. That caused problems for people like Justin Pryzby who were accustomed to copying strings of the form db.schema.table from messages generated by PostgreSQL itself and using them as arguments to \d. Accordingly, revise things so that if an object name pattern contains more parts than we're expecting, we throw an error, unless there's exactly one extra part and it matches the current database name. That way, thisdb.myschema.mytable is accepted as meaning just myschema.mytable, but otherdb.myschema.mytable is an error, and so is some.random.garbage.myschema.mytable. Mark Dilger, per report from Justin Pryzby and discussion among various people. Discussion: https://www.postgresql.org/message-id/20211013165426.GD27491%40telsasoft.com
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/.