postgresql/src/include/optimizer/ordering.h

28 lines
750 B
C

/*-------------------------------------------------------------------------
*
* ordering.h--
* prototypes for ordering.c.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: ordering.h,v 1.5 1997/09/08 02:37:52 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef ORDERING_H
#define ORDERING_H
#include <nodes/relation.h>
extern bool
equal_path_path_ordering(PathOrder * path_ordering1,
PathOrder * path_ordering2);
extern bool
equal_path_merge_ordering(Oid * path_ordering,
MergeOrder * merge_ordering);
extern bool
equal_merge_merge_ordering(MergeOrder * merge_ordering1,
MergeOrder * merge_ordering2);
#endif /* ORDERING_H */