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The idea is to encourage more the use of these new routines across the tree, as these offer stronger type safety guarantees than palloc(). In an ideal world, palloc() would then act as an internal routine of these flavors, whose footprint in the tree is minimal. The patch sent by the author is very large, and this chunk of changes represents something like 10% of the overall patch submitted. The code compiled is the same before and after this commit, using objdump to do some validation with a difference taken in-between. There are some diffs, which are caused by changes in line numbers because some of the new allocation formulas are shorter, for the following files: trgm_regexp.c, xpath.c and pg_walinspect.c. Author: David Geier <geidav.pg@gmail.com> Discussion: https://postgr.es/m/ad0748d4-3080-436e-b0bc-ac8f86a3466a@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.