reproduce-postgres_fdw-query_cancel-failure.pathch

diff --git a/contrib/postgres_fdw/Makefile b/contrib/postgres_fdw/Makefile
index b9fa699305..3e1260e125 100644
--- a/contrib/postgres_fdw/Makefile
+++ b/contrib/postgres_fdw/Makefile
@@ -16,7 +16,7 @@ SHLIB_LINK_INTERNAL = $(libpq)
 EXTENSION = postgres_fdw
 DATA = postgres_fdw--1.0.sql postgres_fdw--1.0--1.1.sql
 
-REGRESS = postgres_fdw query_cancel
+REGRESS = postgres_fdw query_cancel $(shell printf 'query_cancel %.0s' `seq 31`)
 
 ifdef USE_PGXS
 PG_CONFIG = pg_config
diff --git a/contrib/postgres_fdw/postgres_fdw.c b/contrib/postgres_fdw/postgres_fdw.c
index fc65d81e21..9190fbb3cb 100644
--- a/contrib/postgres_fdw/postgres_fdw.c
+++ b/contrib/postgres_fdw/postgres_fdw.c
@@ -1605,7 +1605,10 @@ postgresIterateForeignScan(ForeignScanState *node)
 	 * first call after Begin or ReScan.
 	 */
 	if (!fsstate->cursor_exists)
+{
 		create_cursor(node);
+pg_usleep(100000);
+}
 
 	/*
 	 * Get some more tuples, if we've run out.
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index a750dc800b..c281547e22 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -4717,6 +4717,10 @@ PostgresMain(const char *dbname, const char *username)
 			idle_session_timeout_enabled = false;
 		}
 
+if (rand() % 10 == 0)
+{
+pg_usleep(10000);
+}
 		/*
 		 * (5) disable async signal conditions again.
 		 *