pgsql: postgres_fdw: Attmempt to stabilize regression tests.

postgres_fdw: Attmempt to stabilize regression tests. Even after commit 882ea509fe7a4711fe25463427a33262b873dfa1, some buildfarm members are still failing in the postgres_fdw tests. Try to fix that by disabling use of remote statistics for some test cases. Etsuro Fujita Discussion: http://postgr

pgsql: Clear stmt_timeout_active if we disable_all_timeouts.

Clear stmt_timeout_active if we disable_all_timeouts. Otherwise, we can end up with the flag set when the timeout is actually disabled, leading to misbehavior. Commit f8e5f156b30efee5d0038b03e38735773abcb7ed introduced this bug. Reported by Peter Eisentraut. Analysis and fix by Thomas Munro, tw

pgsql: Mark assorted GUC variables as PGDLLIMPORT.

Mark assorted GUC variables as PGDLLIMPORT. This makes life easier for extension authors. Metin Doslu Discussion: http://postgr.es/m/cal1dpcfa45o1dc-c4t-48v0oze6oy4chjhobrtkk8mznfxq...@mail.gmail.com Branch -- master Details --- https://git.postgresql.org/pg/commitdiff/935dee9ad5a8d12