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Incrementing the level of the call stack reported is useful for debugging purposes as it allows to control which part of the test is exactly failing, especially if a test is structured with subroutines that call routines from Test::More. This adds more incrementations of $Test::Builder::Level where debugging gets improved (for example it does not make sense for some paths like pg_rewind where long subroutines are used). A note is added to src/test/perl/README about that, based on a suggestion from Andrew Dunstan and a wording coming from both of us. Usage of Test::Builder::Level has spread in 12, so a backpatch down to this version is done. Reviewed-by: Andrew Dunstan, Peter Eisentraut, Daniel Gustafsson Discussion: https://postgr.es/m/YV1CCFwgM1RV1LeS@paquier.xyz Backpatch-through: 12
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.