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It's weird to have the core regression tests depending on contrib code, and coverage testing shows that those test queries add nothing to the core-code coverage of the core tests. So pull those test bits out and put them into ordinary test scripts inside contrib/spi/, making that more like other contrib modules. Aside from being structurally nicer, anything we can take out of the core tests (which are executed multiple times per check-world run) and put into tests executed only once should be a win. It doesn't look like this change will buy a whole lot of milliseconds, but a cycle saved is a cycle earned. Also, there is some discussion around possibly removing refint and/or autoinc altogether. I don't know if that will happen, but we'd certainly need to decouple them from the core tests to do so. The tests for autoinc were quite intertwined with the undocumented "ttdummy" trigger in regress.c. That made the tests very hard to understand and contributed nothing to autoinc's testing either. So I just deleted ttdummy and rewrote the autoinc tests without it. I realized while doing this that the description of autoinc in the SGML docs is not a great description of what the function actually does, so the patch includes some updates to those docs. Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi> Discussion: https://postgr.es/m/3872677.1744077559@sss.pgh.pa.us
The PostgreSQL contrib tree
---------------------------
This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree. This does not preclude their
usefulness.
User documentation for each module appears in the main SGML
documentation.
When building from the source distribution, these modules are not
built automatically, unless you build the "world" target. You can
also build and install them all by running "make all" and "make
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.
Some directories supply new user-defined functions, operators, or
types. To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command. In a fresh database,
you can simply do
CREATE EXTENSION module_name;
See the PostgreSQL documentation for more information about this
procedure.