Robert Haas f039eaac71 Allow queries submitted by postgres_fdw to be canceled.
This fixes a problem which is not new, but with the advent of direct
foreign table modification in 0bf3ae88af330496517722e391e7c975e6bad219,
it's somewhat more likely to be annoying than previously.  So,
arrange for a local query cancelation to propagate to the remote side.

Michael Paquier, reviewed by Etsuro Fujita.	 Original report by
Thom Brown.
2016-04-21 10:49:09 -04:00
..
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2016-04-08 21:52:13 +03:00
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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.