path_utils.h

#ifndef PATH_UTILS_H
#define PATH_UTILS_H

#include "postgres.h"

#include "nodes/pathnodes.h"
#include "optimizer/planmain.h"
#include "optimizer/planner.h"

extern create_plan_hook_type prev_create_plan_hook;

/* Extracting path information utilities */
extern List *get_selectivities(PlannerInfo *root,
							   List *clauses,
							   int varRelid,
							   JoinType jointype,
							   SpecialJoinInfo *sjinfo);
extern List *get_list_of_relids(PlannerInfo *root, Relids relids);

extern List *get_path_clauses(Path *path,
							  PlannerInfo *root,
							  List **selectivities);

void		aqo_create_plan_hook(PlannerInfo *root, Path *src, Plan **dest);

#endif /* PATH_UTILS_H */