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7c34555f8c
We weren't exercising the session_preload_libraries option in any meaningful way. auto_explain is a good testbed for doing so, since it's one of the primary use-cases for session_preload_libraries. Hence, adjust its TAP test to load the library via session_preload_libraries not shared_preload_libraries. While at it, feed test-specific settings to the backend via PGOPTIONS rather than tediously rewriting postgresql.conf. Also, since auto_explain has some PGC_SUSET parameters, we can use it to provide a test case for the permissions-checking bug just fixed by commit b35617de3. Back-patch to v15 so that we have coverage for the permissions issue in that branch too. To do that, I back-patched the refactoring recently done by commit 550bc0a6c. Dagfinn Ilmari Mannsåker and Tom Lane Discussion: https://postgr.es/m/CABwTF4VEpwTHhRQ+q5MiC5ucngN-whN-PdcKeufX7eLSoAfbZA@mail.gmail.com
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.