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pg_regress has long had provisions for dynamically substituting path names into regression test scripts and result files, but use of that feature has always been a serious pain in the neck, mainly because updating the result files requires tedious manual editing. Let's get rid of that in favor of passing down the paths in environment variables. In addition to being easier to maintain, this way is capable of dealing with path names that require escaping at runtime, for example paths containing single-quote marks. (There are other stumbling blocks in the way of actually building in a path that looks like that, but removing this one seems like a good thing to do.) The key coding rule that makes that possible is to concatenate pieces of a dynamically-variable string using psql's \set command, and then use the :'variable' notation to quote and escape the string for the next level of interpretation. In hopes of making this change more transparent to "git blame", I've split it into two steps. This commit adds the necessary pg_regress.c support and changes all the *.source files in-place so that they no longer require any dynamic translation. The next commit will just "git mv" them into the regular sql/ and expected/ directories. Discussion: https://postgr.es/m/1655733.1639871614@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/.