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bb684c82f7
This is cleanup for commit 27e1f1456: * ExecAppendAsyncEventWait(), which was modified a bit further by commit a8af856d3, duplicated the same nevents calculation. Simplify the code a little bit to avoid the duplication. Update comments there. * Add an assertion to ExecAppendAsyncRequest(). * Update a comment about merging the async_capable options from input relations in merge_fdw_options(), per complaint from Kyotaro Horiguchi. * Add a comment for fetch_more_data_begin(). Author: Etsuro Fujita Discussion: https://postgr.es/m/CAPmGK1637W30Wx3MnrReewhafn6F_0J76mrJGoFXFnpPq4QfvA%40mail.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.