Pass cursorOptions to planner_setup_hook.

Commit 94f3ad3961 failed to do this
because I couldn't think of a use for the information, but this has
proven to be short-sighted. Best to fix it before this code is
officially released.

Now, the only argument to standard_planenr that isn't passed to
planner_setup_hook is boundParams, but that is accessible via
glob->boundParams, and so doesn't need to be passed separately.

Discussion: https://www.postgresql.org/message-id/CA+TgmoYS4ZCVAF2jTce=bMP0Oq_db_srocR4cZyO0OBp9oUoGg@mail.gmail.com

src/backend/optimizer/plan/planner.c

@@ -511,7 +511,8 @@ standard_planner(Query *parse, const char *query_string, int cursorOptions,
 
 	/* Allow plugins to take control after we've initialized "glob" */
 	if (planner_setup_hook)
-		(*planner_setup_hook) (glob, parse, query_string, &tuple_fraction, es);
+		(*planner_setup_hook) (glob, parse, query_string, cursorOptions,
+							   &tuple_fraction, es);
 
 	/* primary planning entry point (may recurse for subqueries) */
 	root = subquery_planner(glob, parse, NULL, NULL, false, tuple_fraction,

src/include/optimizer/planner.h

@@ -35,6 +35,7 @@ extern PGDLLIMPORT planner_hook_type planner_hook;
 /* Hook for plugins to get control after PlannerGlobal is initialized */
 typedef void (*planner_setup_hook_type) (PlannerGlobal *glob, Query *parse,
 										 const char *query_string,
+										 int cursorOptions,
 										 double *tuple_fraction,
 										 ExplainState *es);
 extern PGDLLIMPORT planner_setup_hook_type planner_setup_hook;