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38d3bbff7a
Suppose that a JOIN_ORDER() advice target consists of a single
ordered or unordered sublist, something like JOIN_ORDER((...))
or JOIN_ORDER({...}) or even JOIN_ORDER(({...})). In the previous
coding, the feedback for such advice would be "partially matched"
even when the query joined all the relations mentioned. Fix that.
Like the issues fixed by e1d8f81d49,
this escaped detection because advice generation never creates
advice strings that have the problematic form.
Reported-by: Ayush Tiwari <ayushtiwari.slg01@gmail.com>
Discussion: http://postgr.es/m/CAJTYsWWe8E8ya-24wRws5LSVhHNxCwLyy8c-ueY-TKvC=8P7UQ@mail.gmail.com
Discussion: http://postgr.es/m/CA+TgmoYYHC4i-Gpzc9-JYHqih6pOK+6LTYFiNR-PioXG1nKkOQ@mail.gmail.com
Backpatch-through: 19
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.