Using this system function with an in-place tablespace (created when allow_in_place_tablespaces is enabled by specifying an empty string as location) caused a failure when using readlink(), as the tablespace is, in this case, not a symbolic link in pg_tblspc/ but a directory. Rather than getting a failure, the commit changes pg_tablespace_location() so as a relative path to the data directory is returned for in-place tablespaces, to make a difference between tablespaces created when allow_in_place_tablespaces is enabled or not. Getting a path rather than an empty string that would match the CREATE TABLESPACE command in this case is more useful for tests that would like to rely on this function. While on it, a regression test is added for this case. This is simple to add in the main regression test suite thanks to regexp_replace() to mask the part of the tablespace location dependent on its OID. Author: Michael Paquier Reviewed-by: Kyotaro Horiguchi, Thomas Munro Discussion: https://postgr.es/m/YiG1RleON1WBcLnX@paquier.xyz |
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README
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/.